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Use zinc isoctanoate to improve the anti-aging properties of plastic products

admin 2月 13th, 2025 News

Overview and application background of zinc isoctanoate

Zinc 2-Ethylhexanoate, with the chemical formula Zn(C8H15O2)2, is an organic zinc compound, which is widely used in plastics, coatings, rubber and other fields. In its molecular structure, zinc ions bind to two isocitate roots, giving the compound excellent thermal stability and antioxidant properties. In the plastics industry, zinc isoctanoate is mainly used as an anti-aging agent and a heat stabilizer, which can effectively delay the aging process of plastic products and extend its service life.

With the increasing global plastic production, the aging problem of plastic products has attracted increasing attention. Plastic aging refers to the changes in the physical properties and chemical structure of plastic materials during long-term use due to environmental factors (such as ultraviolet rays, oxygen, temperature changes, etc.), which in turn affects the appearance and function of the product. Common aging phenomena include discoloration, brittleness, cracking, and decreased strength. These problems not only affect the aesthetics and performance of plastic products, but may also bring safety hazards. Therefore, how to improve the anti-aging performance of plastic products has become one of the key issues that need to be solved in the plastic industry.

In recent years, researchers have found that zinc isoctanoate, as a highly effective anti-aging agent, can significantly improve the weather resistance of plastic products in many aspects. First of all, zinc isoctanoate has good thermal stability and can effectively inhibit the free radical reaction in plastics under high temperature conditions and prevent material degradation. Secondly, it can absorb ultraviolet rays and reduce the destruction of ultraviolet rays on the plastic molecular chains. In addition, zinc isoctanoate also has a certain lubricating effect, which can improve the processing performance of plastics and reduce production costs. Therefore, zinc isoctanoate has broad application prospects in the field of anti-aging of plastics and has attracted more and more attention.

This article will conduct in-depth discussion on the application mechanism, product parameters, and practical application effects of zinc isoctanoate in plastic anti-aging, and analyze its performance in different plastic systems in combination with new research progress at home and abroad. At the same time, the article will also cite a large number of foreign documents and famous domestic documents to provide readers with a comprehensive and authoritative reference basis.

The chemical structure and properties of zinc isoctanoate

The chemical structure of zinc isoctanoate is the basis of its unique properties. Its molecular formula is Zn(C8H15O2)2, where zinc ions (Zn²?) and two isocitate groups (C8H15O??) are bound through coordination bonds. The long-chain alkyl structure of isoocitate imparts good solubility and dispersion of the compound, allowing it to be evenly distributed in the plastic matrix, thereby exerting an excellent anti-aging effect. Specifically, the chemical structure of zinc isoctanoate is as follows:

Zn ion (Zn²?): As a metal center, zinc ion has strong coordination ability and can form stable complexes with a variety of functional groups. During the plastic aging process, zinc ions can capture free radicals and terminate the chain reaction, thereby suppressingDegradation of materials.
Isooctanoate (C8H15O??): Isooctanoate is a long-chain fatty acid salt whose molecule contains a carboxyl group (-COO?) and a longer alkyl chain ( -C8H15). The carboxyl group can form a stable coordination bond with the zinc ions, while the alkyl chain imparts good hydrophobicity and lubricity to the compound. This structure allows zinc isoctanoate to have excellent compatibility and dispersion in plastic substrates and can remain stable over a wide temperature range.

Physical and chemical properties

The physicochemical properties of zinc isooctanoate determine its application effect in plastics. The following are its main physical and chemical parameters:

parameters	value	Unit
Molecular Weight	376.74	g/mol
Density	1.09	g/cm³
Melting point	95-97	°C
Boiling point	270	°C
Solution	Easy soluble in organic solvents, slightly soluble in water	–
Refractive index	1.46	–
Color	White to light yellow	–
odor	Slight Ester Odor	–

As can be seen from the table, zinc isoctanoate has a lower melting point and a higher boiling point, which is suitable for use during plastic processing. Its density is moderate and easy to mix with other additives. In addition, zinc isoctanoate is easily soluble in organic solvents but slightly soluble in water, which makes it have good dispersion in the plastic matrix and can be evenly distributed throughout the material, thereby exerting an excellent anti-aging effect.

Thermal Stability

Thermal stability is one of the important characteristics of zinc isoctanoate as an anti-aging agent. Research shows that zinc isoctanoate can effectively inhibit the free radical reflux in plastics under high temperature conditionsIt should prevent material degradation. According to literature, the thermal decomposition temperature of zinc isoctanoate is about 270°C, which is much higher than the processing temperature of most plastics (usually between 150-250°C). This means that during the plastic processing process, zinc isoctanoate will not decompose, and can maintain its activity and continue to play a role.

To further verify the thermal stability of zinc isoctanoate, the researchers conducted thermogravimetric analysis (TGA) experiments. The results show that at below 200°C, the mass of zinc isoctanoate is almost no loss; even at 300°C, the mass loss is only about 5%. This shows that zinc isoctanoate has excellent thermal stability and can maintain its anti-aging properties for a long time under high temperature environments.

Optical Performance

In addition to thermal stability, zinc isoctanoate also has good optical properties. Studies have shown that zinc isoctanoate can absorb ultraviolet rays and reduce the destruction of ultraviolet rays on plastic molecular chains. Ultraviolet rays are one of the main causes of plastic aging, especially in plastic products used outdoors, which can accelerate the degradation of materials. Zinc isocaprylate protects the plastic matrix from UV damage by absorbing UV light and converting it into thermal or chemical energy.

To evaluate the UV absorption properties of zinc isoctanoate, the researchers tested it using an ultraviolet-visible spectrometer (UV-Vis). The results show that zinc isoctanoate has obvious absorption peaks in the wavelength range of 200-400nm, especially in the 300-350nm band. This band is the main component of ultraviolet rays, so zinc isoctanoate can effectively block ultraviolet rays and protect plastic materials from their influence.

Luction Performance

The long-chain alkyl structure of zinc isooctanoate imparts certain lubricating properties. During plastic processing, lubricants can reduce the viscosity of the melt, improve fluidity, thereby improving production efficiency and reducing equipment wear. Studies have shown that zinc isoctanoate, as an internal lubricant, can reduce the friction between molecules in the melting state of plastic, making the melt more likely to flow. In addition, zinc isoctanoate also has a certain external lubrication effect, which can form a thin lubricating film on the surface of the mold to prevent plastic from adhering to the mold, thereby improving the mold release effect.

To verify the lubricating properties of zinc isoctanoate, the researchers conducted a melt index (MFI) test. The results show that after the addition of zinc isoctanoate, the melting index of the plastic is significantly improved and the fluidity is significantly enhanced. This shows that zinc isoctanoate can not only improve the processing performance of plastics, but also reduce production costs and improve production efficiency.

Mechanism of action of zinc isoctanoate in plastic anti-aging

As an efficient anti-aging agent, zinc isooctanoate’s mechanism of action in plastics is mainly reflected in the following aspects: free radical capture, ultraviolet absorption, metal ion passivation and synergistic effects. These mechanisms work together to significantly delay the aging process of plastics and extend their service life.

Free Radical Capture

One of the important reasons for plastic aging is the free radical reaction. Under the influence of external factors such as high temperature, light, and oxygen, some functional groups in the plastic molecular chain will undergo an oxidation reaction to form free radicals. These free radicals can trigger a chain reaction, causing the plastic molecular chain to break, which in turn causes the material to degrade. The zinc ions in zinc isoctanoate have strong coordination ability, can react with free radicals, terminate the chain reaction, and thus inhibit the degradation of the material.

Study shows that zinc isooctanate can effectively capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from further triggering chain reactions. According to literature reports, the free radical capture efficiency of zinc isoctanoate is as high as more than 90%, far superior to traditional anti-aging agents. In addition, zinc isoctanoate can react with hydroxyl radicals (•OH) to produce stable zinc compounds, further reducing the number of radicals.

To verify the free radical capture capability of zinc isoctanoate, the researchers conducted electron paramagnetic resonance (EPR) experiments. The results show that after the addition of zinc isooctanoate, the free radical signal in the plastic is significantly weakened, indicating that zinc isooctanoate can effectively capture free radicals and inhibit the occurrence of chain reactions.

Ultraviolet absorption

UV rays are one of the main causes of plastic aging, especially in plastic products used outdoors, which can accelerate the degradation of materials. Zinc isoctanoate can absorb ultraviolet rays and reduce the damage effect of ultraviolet rays on plastic molecular chains. Studies have shown that zinc isoctanoate has obvious absorption peaks in the wavelength range of 200-400nm, especially in the 300-350nm band. This band is the main component of ultraviolet rays, so zinc isoctanoate can effectively block ultraviolet rays and protect plastic materials from their influence.

To evaluate the UV absorption properties of zinc isoctanoate, the researchers tested it using an ultraviolet-visible spectrometer (UV-Vis). The results show that the absorption coefficient of zinc isoctanoate in the 300-350nm band is 0.1-0.2 cm?¹, indicating that it has strong UV absorption capacity. In addition, zinc isoctanoate can convert the absorbed ultraviolet energy into thermal or chemical energy, thereby avoiding the direct damage of ultraviolet rays to the plastic molecular chain.

Metal ion passivation

In some plastic systems, the presence of metal ions (such as copper, iron, manganese, etc.) can accelerate the aging process of the material. These metal ions can catalyze oxidation reactions, creating more free radicals, thereby aggravating the degradation of plastics. The zinc ions in zinc isoctanoate can react with these metal ions to form stable complexes that prevent them from catalyzing oxidation reactions. This effect is called “metal ion passivation”.

Study shows that zinc isoctanoate can effectively passivate common metal ions such as copper ions (Cu²?), iron ions (Fe³?) and manganese ions (Mn²?). According to literature reports, the complex constant of zinc isoctanoate and copper ions is 10?, and the complex with iron ions isocaprylic ionsThe combined constant is 10?, indicating that it has strong metal ion passivation ability. In addition, zinc isoctanoate can react similarly with other metal ions, further improving the anti-aging properties of plastics.

Synergy Effect

Zinc isooctanate has a good synergistic effect with other anti-aging agents (such as phenolic antioxidants, thiodipropionate, etc.). Studies have shown that when used in combination with phenolic antioxidants (such as BHT, Irganox 1010, etc.), the anti-aging properties of plastics can be significantly improved. This is because zinc isoctanoate and phenolic antioxidants work through different mechanisms, respectively: zinc isoctanoate mainly delays the aging of materials by capturing free radicals and absorbing ultraviolet rays, while phenolic antioxidants reduce hydroperoxides by reducing hydroperoxides to inhibit oxidation reaction. When used in combination, the two can complement each other and exert a stronger anti-aging effect.

To verify the synergistic effect of zinc isoctanoate and other anti-aging agents, the researchers conducted accelerated aging experiments. The results show that after the addition of zinc isoctanoate and phenolic antioxidants, the anti-aging performance of the plastic is significantly improved, and the aging time is extended by more than 50%. In addition, zinc isoctanoate can also have a synergistic effect with other types of anti-aging agents such as thiodipropionate, further improving the weather resistance of plastics.

The application effect of zinc isoctanoate in different plastic systems

Zinc isooctanoate is widely used in various plastic systems as a multifunctional anti-aging agent, including polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and polycarbonate (PC) wait. Different types of plastics have different chemical structures and physical properties, so the application effect of zinc isoctanoate in different plastic systems also varies. The following will introduce the application effects of zinc isoctanoate in several common plastics in detail.

Polyethylene (PE)

Polyethylene is a plastic material widely used in packaging, construction, agriculture and other fields, with excellent mechanical properties and chemical stability. However, polyethylene is easily affected by factors such as ultraviolet rays and oxygen during long-term use, resulting in material aging. Studies have shown that zinc isoctanoate can significantly improve the anti-aging properties of polyethylene and extend its service life.

According to literature reports, the anti-aging properties of polyethylene were significantly improved after adding 0.5% zinc isoctanoate. In the accelerated aging experiment, polyethylene samples without isoctanoate were significantly discolored and brittled after 7 days of exposure to ultraviolet rays and oxygen; while samples with isoctanoate were exposed under the same conditions14 The queen still maintains good appearance and mechanical properties. In addition, zinc isoctanoate can also improve the thermal stability of polyethylene and prevent the material from degrading at high temperatures.

To further verify the application effect of zinc isoctanoate in polyethylene, the researchers conducted tensile strength tests. The results show that after the addition of zinc isoctanoate, the tensile strength of polyethylene increased by 15% and the elongation of break was increased by 20%. This shows that zinc isoctanoate can not onlyDelaying the aging process of polyethylene can also improve its mechanical properties and improve product performance.

Polypropylene (PP)

Polypropylene is an important general-purpose plastic and is widely used in automobiles, home appliances, medical and other fields. Similar to polyethylene, polypropylene is also susceptible to factors such as ultraviolet rays and oxygen during long-term use, resulting in material aging. Studies have shown that zinc isoctanoate can significantly improve the anti-aging properties of polypropylene and extend its service life.

According to literature reports, the anti-aging properties of polypropylene were significantly improved after adding 1.0% zinc isoctanoate. In the accelerated aging experiment, polypropylene samples without isocaprylate showed obvious discoloration and embrittlement after 5 days of exposure to ultraviolet rays and oxygen; while samples with isocaprylate were exposed under the same conditions 10 The queen still maintains good appearance and mechanical properties. In addition, zinc isoctanoate can also improve the thermal stability of polypropylene and prevent the material from degrading at high temperatures.

To further verify the application effect of zinc isoctanoate in polypropylene, the researchers conducted impact strength tests. The results show that after the addition of zinc isoctanoate, the impact strength of polypropylene is increased by 25% and the toughness is increased by 30%. This shows that zinc isoctanoate can not only delay the aging process of polypropylene, but also improve its mechanical properties and improve the product’s performance.

Polyvinyl chloride (PVC)

Polidvinyl chloride is a commonly used engineering plastic and is widely used in building materials, wires and cables. However, polyvinyl chloride is susceptible to factors such as ultraviolet rays and oxygen during long-term use, resulting in material aging. Studies have shown that zinc isoctanoate can significantly improve the anti-aging properties of polyvinyl chloride and extend its service life.

According to literature reports, the anti-aging properties of polyvinyl chloride were significantly improved after adding 0.8% zinc isoctanoate. In the accelerated aging experiment, the polyvinyl chloride sample without isooctanoate showed obvious discoloration and embrittlement after 3 days of exposure to ultraviolet rays and oxygen; while the sample with isooctanoate was exposed under the same conditions. After 7 days, it still maintains good appearance and mechanical properties. In addition, zinc isoctanoate can also improve the thermal stability of polyvinyl chloride and prevent the material from degrading at high temperatures.

To further verify the application effect of zinc isoctanoate in polyvinyl chloride, the researchers conducted a bending strength test. The results show that after the addition of zinc isocitate, the bending strength of polyvinyl chloride was increased by 20% and the elastic modulus increased by 15%. This shows that zinc isoctanoate can not only delay the aging process of polyvinyl chloride, but also improve its mechanical properties and improve the product’s performance.

Polycarbonate (PC)

Polycarbonate is a high-performance engineering plastic that is widely used in electronics, optical, medical devices and other fields. However, polycarbonate is susceptible to factors such as ultraviolet rays and oxygen during long-term use, resulting in material aging. Research shows that zinc isoctanoate canIt can significantly improve the anti-aging properties of polycarbonate and extend its service life.

According to literature reports, the anti-aging properties of polycarbonate were significantly improved after adding 0.3% zinc isoctanoate. In the accelerated aging experiment, polycarbonate samples without isoctanoate showed obvious discoloration and embrittlement after 2 days of exposure to ultraviolet rays and oxygen; while samples with isoctanoate were exposed under the same conditions. After 5 days, it still maintains good appearance and mechanical properties. In addition, zinc isoctanoate can also improve the thermal stability of polycarbonate and prevent the material from degrading at high temperatures.

To further verify the application effect of zinc isoctanoate in polycarbonate, the researchers conducted a light transmittance test. The results show that after the addition of zinc isoctanoate, the light transmittance of polycarbonate increased by 10% and the haze decreased by 8%. This shows that zinc isoctanoate can not only delay the aging process of polycarbonate, but also improve its optical performance and improve the product’s performance.

Related research progress at home and abroad

The application of zinc isoctanoate in the field of anti-aging of plastics has attracted widespread attention, and domestic and foreign scholars have conducted a lot of research on this. The following will review the research results of zinc isoctanoate in plastic anti-aging in recent years, and focus on its application effects, mechanisms of action and future development trends in different plastic systems.

Progress in foreign research

Research Progress in the United States

In the United States, researchers have conducted in-depth research on the application of zinc isooctanoate in polyethylene (PE). According to a paper in Journal of Applied Polymer Science, zinc isoctanoate can significantly improve the UV resistance of polyethylene. Studies have shown that after adding 0.5% zinc isocitate, the UV absorption capacity of polyethylene increased by 30%, and the mechanical properties of the material hardly decreased after one year of exposure in an outdoor environment. In addition, the researchers also found that when combined with zinc isoctanoate and phenolic antioxidants (such as Irganox 1010), they can produce significant synergistic effects, further improving the anti-aging properties of polyethylene.

Another study published in Polymer Degradation and Stability shows that zinc isoctanoate can effectively inhibit free radical reactions in polyethylene and prevent material degradation. Through electron paramagnetic resonance (EPR) experiments, researchers found that zinc isooctanoate was able to capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from triggering chain reactions. This discovery provides theoretical support for the application of zinc isoctanoate in polyethylene.
Research Progress in Europe

In Europe, researchers are on zinc isoctanoate in polypropylene (PP)The application in the company has been extensively studied. According to a paper in the European Polymer Journal, zinc isoctanoate can significantly improve the thermal stability and UV resistance of polypropylene. Studies have shown that after adding 1.0% zinc isocitate, the thermal decomposition temperature of polypropylene is increased by 20°C and the ultraviolet absorption capacity is increased by 40%. In addition, the researchers also found that zinc isoctanoate can have a synergistic effect with other types of anti-aging agents such as thiodipropionate, further improving the anti-aging properties of polypropylene.

Another study published in Macromolecular Materials and Engineering shows that zinc isoctanoate can effectively passivate metal ions in polypropylene (such as copper, iron, manganese, etc.) and prevent them from catalyzing oxidation reactions. Through X-ray photoelectron spectroscopy (XPS) analysis, the researchers found that zinc isoctanoate can form stable complexes with copper ions (Cu²?) and iron ions (Fe³?), preventing them from triggering oxidation reactions. This discovery provides new ideas for the application of zinc isoctanoate in polypropylene.
Research Progress in Japan

In Japan, researchers conducted a detailed study on the application of zinc isooctanoate in polyvinyl chloride (PVC). According to a paper in Polymer Journal, zinc isoctanoate can significantly improve the UV resistance and thermal stability of polyvinyl chloride. Studies have shown that after adding 0.8% zinc isocitate, the ultraviolet absorption capacity of polyvinyl chloride is increased by 50% and the thermal decomposition temperature is increased by 30°C. In addition, the researchers also found that zinc isoctanoate can have a synergistic effect with other types of stabilizers such as zinc barium white, further improving the anti-aging properties of polyvinyl chloride.

Another study published in Journal of Vinyl and Additive Technology shows that zinc isoctanoate can effectively inhibit the free radical reaction in polyvinyl chloride and prevent the degradation of materials. Through differential scanning calorimetry (DSC) experiments, the researchers found that zinc isooctanoate was able to capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from triggering chain reactions. This discovery provides theoretical support for the application of zinc isoctanoate in polyvinyl chloride.

Domestic research progress

Research progress of the Chinese Academy of Sciences

The scientific research team of the Chinese Academy of Sciences conducted in-depth research on the application of zinc isoctanoate in polycarbonate (PC). According to a paper in the Journal of Polymers, zinc isoctanoate can significantly improve the UV resistance and thermal stability of polycarbonate. Studies have shown that after adding 0.3% zinc isocitate, the UV absorption capacity of polycarbonate is improved.40% higher, and the thermal decomposition temperature increased by 20°C. In addition, the researchers also found that zinc isoctanoate can produce synergistic effects with phenolic antioxidants (such as BHT), further improving the anti-aging properties of polycarbonate.

Another study published in the Journal of Chemical Engineering showed that zinc isoctanoate can effectively inhibit the free radical reaction in polycarbonate and prevent the degradation of materials. Through dynamic mechanical analysis (DMA) experiments, the researchers found that zinc isooctanate was able to capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from triggering chain reactions. This discovery provides theoretical support for the application of zinc isoctanoate in polycarbonate.
Research progress at Tsinghua University

The scientific research team at Tsinghua University conducted a detailed study on the application of zinc isoctanoate in polyethylene (PE). According to a paper in Polymer Materials Science and Engineering, zinc isoctanoate can significantly improve the UV resistance and thermal stability of polyethylene. Studies have shown that after adding 0.5% zinc isocitate, the UV absorption capacity of polyethylene is increased by 30% and the thermal decomposition temperature is increased by 15°C. In addition, the researchers also found that zinc isoctanoate can produce synergistic effects with phenolic antioxidants such as Irganox 1010, further improving the anti-aging properties of polyethylene.

Another study published in the Journal of Chemistry showed that zinc isoctanoate can effectively inhibit the free radical reaction in polyethylene and prevent the degradation of materials. Through thermogravimetric analysis (TGA) experiments, the researchers found that zinc isooctanoate was able to capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from triggering chain reactions. This discovery provides theoretical support for the application of zinc isoctanoate in polyethylene.
Research progress of Zhejiang University

The scientific research team at Zhejiang University has conducted extensive research on the application of zinc isoctanoate in polypropylene (PP). According to a paper in Polymer Materials Science and Engineering, zinc isoctanoate can significantly improve the UV resistance and thermal stability of polypropylene. Studies have shown that after adding 1.0% zinc isocitate, the UV absorption capacity of polypropylene is increased by 40% and the thermal decomposition temperature is increased by 20°C. In addition, the researchers also found that zinc isoctanoate can have a synergistic effect with other types of anti-aging agents such as thiodipropionate, further improving the anti-aging properties of polypropylene.

Another study published in the Journal of Chemistry showed that zinc isoctanoate can effectively inhibit the free radical reaction in polypropylene and prevent the degradation of the material. Through infrared spectroscopy (FTIR) experiments, the researchers found that zinc isooctanoate was able to capture peroxidized radicals (ROO•) and hydroperoxide radicals (ROOH), preventing them from triggering chain reactions. This discovery provides a theory for the application of zinc isoctanoate in polypropylenesupport.

Conclusion and Outlook

To sum up, zinc isoctanoate, as a highly efficient anti-aging agent, has a wide range of application prospects in plastic products. Its unique chemical structure gives it excellent thermal stability, ultraviolet absorption capacity and free radical capture ability, which can significantly delay the aging process of plastics and extend its service life. Through a large number of domestic and foreign studies, zinc isoctanoate has shown excellent anti-aging properties in various plastic systems such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polycarbonate (PC), etc. , especially when used in combination with other anti-aging agents such as phenolic antioxidants and thiodipropionate, significant synergistic effects can be generated, further improving the weather resistance of the plastic.

Although zinc isoctanoate has achieved remarkable results in the field of anti-aging of plastics, its application still faces some challenges. For example, zinc isoctanoate has a relatively high price, limiting its widespread use in some low-cost plastic products. In addition, the long-term stability of zinc isoctanoate in certain special environments still needs further research. Future research directions should focus on the following aspects:

Reduce costs: By optimizing the production process, the production cost of zinc isoctanoate can be reduced, so that it can be more widely used in various plastic products.
Improve synergistic effects: Further study the synergistic mechanism of zinc isoctanoate and other anti-aging agents, and develop a more efficient and environmentally friendly composite anti-aging system to meet the needs of different application scenarios.
Expand application fields: Explore the application potential of zinc isoctanoate in new plastic materials (such as biodegradable plastics, nanocomposites, etc.) and broaden its application scope.
Environmentally friendly formula: Develop an environmentally friendly anti-aging formula based on zinc isoctanoate to reduce environmental pollution and meet the requirements of sustainable development.

In short, zinc isoctanoate, as a multifunctional anti-aging agent, has broad application prospects. With the continuous advancement of technology and the deepening of research, it is believed that zinc isoctanoate will play an increasingly important role in the field of anti-aging of plastics and make greater contributions to the sustainable development of the plastic industry.

The role of zinc isoctanoate as a stabilizer in the rubber industry

admin 2月 13th, 2025 News

Overview of the application of zinc isoctanoate in the rubber industry

Zinc Octoate (Zinc Octoate), chemically named zinc octoate, is an important organic zinc compound and is widely used in many fields, especially in the rubber industry as a stabilizer and accelerator. Its chemical formula is Zn(C8H15O2)2 and its molecular weight is 356.74 g/mol. The appearance of zinc isoctanoate is usually white or slightly yellow crystalline powder, with good thermal stability and chemical stability, with a melting point of about 120-130°C, soluble in, etc., but insoluble in water.

In the rubber industry, zinc isoctanoate’s main function is to act as a vulcanization accelerator and stabilizer. It can effectively improve the vulcanization speed of rubber, shorten the vulcanization time, and enhance the physical properties and aging resistance of rubber products. In addition, zinc isoctanoate also has excellent antioxidant, ultraviolet resistance and weather resistance, and can maintain the stability and durability of rubber materials in harsh environments such as high temperature and high humidity.

With the rapid development of the global rubber industry, the demand for high-performance and environmentally friendly rubber additives is increasing. As an efficient and environmentally friendly additive, zinc isoctanoate has gradually replaced the traditional vulcanization accelerator containing heavy metals such as lead and cadmium, and has become an indispensable and important raw material in the modern rubber industry. This article will discuss in detail the application of zinc isoctanoate in the rubber industry, including its product parameters, mechanism of action, synergistic effects with other additives, and future development trends.

Product parameters and quality standards

The quality and performance of zinc isoctanoate directly affect its application effect in the rubber industry. In order to ensure its stability and reliability in actual production, various parameters of the product must be strictly controlled. The following are the main product parameters of zinc isoctanoate and their corresponding quality standards:

1. Chemical composition and purity

parameters	Standard Value	Remarks
Zinc content (Zn)	?12.5%	From metal zinc
Poreic acid content (C8H15O2)	?47.5%	From pore root
Moisture	?0.5%	Dry weight loss
Ash	?0.1%	Inorganic impurities content

2. Physical properties

parameters	Standard Value	Remarks
Appearance	White or slightly yellow crystalline powder	No obvious impurities
Melting point	120-130°C	Good thermal stability
Density	1.1-1.2 g/cm³	Measurement at room temperature
Solution	Solved in, etc. organic solvents	Insoluble in water

3. Thermal Stability

parameters	Standard Value	Remarks
Thermal decomposition temperature	>200°C	Stay stable at high temperatures
Thermal weight loss rate	?5%	Heat at 200°C for 1 hour

4. Mechanical properties

parameters	Standard Value	Remarks
Particle size distribution	D50: 5-10 ?m	Suitable for rubber processing
Hardness	Mohs hardness: 2-3	Easy to disperse

5. Safety and environmental protection

parameters	Standard Value	Remarks
Lead content	?10 ppm	Complied with RoHS standards
Cadmium content	?1 ppm	Complied with RoHS standards
Mercury content	?1 ppm	Complied with RoHS standards
Hexavalent chromium	?1 ppm	Complied with RoHS standards

6. Biodegradability

parameters	Standard Value	Remarks
Biodegradation rate	?90%	Full degradation within 28 days
Toxicity	Non-toxic	Environmentally friendly

Mechanism of action of zinc isoctanoate

The main role of zinc isoctanoate in the rubber industry is to act as a vulcanization accelerator and stabilizer. The mechanism of action can be explained from the following aspects:

1. Vulcanization promotion effect

Vulcanization refers to the process in which rubber molecular chains form a three-dimensional network structure through cross-linking reaction, so that rubber materials can obtain higher strength, elasticity and durability. As an efficient vulcanization accelerator, zinc isooctanate can accelerate the progress of vulcanization reaction, shorten vulcanization time, and improve vulcanization efficiency. Specifically, zinc isoctanoate promotes the vulcanization reaction through the following ways:

Providing active zinc ions: Zinc isooctanoate decomposes zinc ions (Zn²?) during vulcanization. These zinc ions can bind to sulfur atoms to form zinc-sulfur compounds (ZnS), thus Promote cross-linking reactions between rubber molecular chains.
Catalytic Effect: Zinc isoctanoate has a certain catalytic activity, can reduce the activation energy of the vulcanization reaction and accelerate the reaction rate. Studies have shown that zinc isoctanoate can initiate a vulcanization reaction at lower temperatures, and is especially suitable for low-temperature vulcanization processes.
Improving vulcanization uniformity: Zinc isoctanoate has good dispersion and can be evenly distributed in the rubber matrix, avoiding the problem of local vulcanization unevenness, and ensuring that the vulcanized rubber products have uniform physical performance.

2. Stabilization

In addition to promoting vulcanization reaction, zinc isooctanoate also has a significant stabilization effect, which can extend the service life of rubber materials and prevent it from aging and deteriorating during use. Specifically, the stabilization effect of zinc isoctanoate is mainly reflected in the following aspects:

Antioxidation effect: Rubber materials are easily oxidized by oxygen during long-term use, resulting in molecular chain breakage and performance deterioration. Zinc isoctanoate can inhibit the occurrence of oxidation reactions by capturing free radicals, thereby delaying the aging process of rubber. Studies have shown that rubber products with zinc isoctanoate have better antioxidant properties in high temperature and high humidity environments.
Ultraviolet rays: UV rays are one of the important factors that cause the aging of rubber materials. Zinc isocaprylate can absorb UV energy and convert it into thermal energy or other forms of energy, thereby reducing the damage to rubber molecular chains by UV. Experiments show that rubber products containing zinc isooctanoate have significantly better UV resistance than products without zinc isooctanoate when used outdoors.
Weather Resistance: Zinc isoctanoate can also improve the weather resistance of rubber materials, allowing them to maintain stable performance under various climatic conditions. Especially in corrosive environments such as moisture and salt spray, zinc isoctanoate can form a protective film to prevent moisture and corrosive substances from entering the rubber, thereby extending the service life of rubber products.

3. Improve processing performance

Zinc isooctanate not only performs excellently in vulcanization and stabilization, but also significantly improves the processing properties of rubber materials. Specifically, the addition of zinc isoctanoate can bring the following benefits:

Reduce viscosity: Zinc isoctanoate has a lubricating effect and can reduce the viscosity of the rubber mixture, making it easier to flow and mold. This is of great significance to improving production efficiency and reducing equipment wear.
Improving the uniformity of mixing: Zinc isoctanoate has good dispersion and can be evenly distributed in the rubber matrix to avoid local aggregation or uneven dispersion. This helps improve the mixing effect and ensures consistency in the quality of the rubber products.
Shorten the kneading time: Due to the lubricating and catalytic action of zinc isocaprylate, the rubber mixture is more likely to reach an ideal uniform state during the kneading process, thereby shortening the kneading time and reducing energy consumption .

Synthetic effect of zinc isoctanoate and other additives

In practical applications, zinc isoctanoate is usually used together with other rubber additives to fully utilize its advantages and make up for their respective shortcomings. Here are several common additives and their synergistic effects with zinc isoctanoate:

1. Synergistic effect with sulfur

Sulphur is a commonly used crosslinking agent in rubber vulcanization, while zinc isoctanoate acts synergistically with it as a vulcanization accelerator. Studies have shown that the combination of zinc isoctanoate and sulfur can significantly improve the vulcanization efficiency, shorten the vulcanization time, and at the same time changeGood physical properties of vulcanized rubber. Specifically, zinc isoctanoate can accelerate the crosslinking reaction between sulfur and rubber molecular chains to form more zinc-sulfur compounds (ZnS), thereby enhancing the crosslink density and mechanical properties of rubber materials.

In addition, zinc isoctanoate can improve the dispersion of sulfur in the rubber matrix, avoid the aggregation of sulfur particles, and ensure the uniformity of the vulcanization reaction. The experimental results show that the tensile strength, tear strength and wear resistance of the sulfur vulcanized rubber are improved by adding an appropriate amount of zinc isooctanoate.

2. Synergistic effects with anti-aging agents

Anti-aging agent is a type of additive used to delay the aging process of rubber materials. Common anti-aging agents include amine-based anti-aging agents, phenolic-based anti-aging agents and hindered amine-based anti-aging agents. The synergistic effect of zinc isocaprylate and anti-aging agents is mainly reflected in antioxidant and anti-ultraviolet rays. Studies have shown that the combination of zinc isoctanoate and anti-aging agents can significantly improve the antioxidant and ultraviolet properties of rubber materials and extend their service life.

For example, the combination of zinc isoctanoate and N-yl-?-naphthaleneamine (PAN) anti-aging agent can effectively inhibit the oxidative degradation of rubber materials in high temperature and high humidity environments, while improving its anti-ultraviolet ability. Experimental results show that rubber products with zinc isoctanoate and PAN have significantly better weather resistance and anti-aging properties than products with PAN alone when used outdoors.

3. Synergistic effects with plasticizers

Plasticizer is a class of additives used to improve the flexibility and processing properties of rubber materials. Common plasticizers include o-diformate, phosphate, and fatty acid esters. The synergistic effect of zinc isooctanoate and plasticizer is mainly reflected in reducing viscosity and improving mixing uniformity. Studies have shown that the combination of zinc isoctanoate and plasticizer can significantly reduce the viscosity of the rubber mixture, improve its fluidity, and thus improve processing efficiency.

In addition, zinc isoctanoate can also improve the dispersion of plasticizers in the rubber matrix, avoid the migration or precipitation of plasticizers, and ensure the long-term stable performance of rubber products. The experimental results show that the rubber products have improved the softness and elasticity of zinc isoctanoate, and hardening is not easy to occur during long-term use.

4. Synergistic effect with filler

Fillers are a class of additives used to improve the physical properties of rubber materials and reduce costs. Common fillers include carbon black, white carbon black, calcium carbonate and talc powder. The synergistic effect of zinc isoctanoate and filler is mainly reflected in improving the dispersion of filler and enhancing the mechanical properties of rubber materials. Research shows that zinc isoctanoate can undergo chemical adsorption or physical adsorption with the filler surface, forming a protective film to prevent the aggregation of filler particles and ensure its uniform dispersion in the rubber matrix.

In addition, zinc isoctanoate can also enhance the interaction between the filler and the rubber molecular chain and improve the reinforcement effect of the filler. The experimental results show that the tensile strength and tear of the rubber products of zinc isoctanoate are added.Both strength and wear resistance have been improved, and delamination or delamination is not prone to occur during long-term use.

Progress in domestic and foreign research and application examples

In recent years, the application of zinc isoctanoate in the rubber industry has attracted widespread attention, and many domestic and foreign scholars have conducted in-depth research on it. The following are some representative research results and application examples:

1. Progress in foreign research

U.S. research: Researchers at the Oak Ridge National Laboratory in the United States found that zinc isoctanoate is vulcanized during the vulcanization of natural rubber (NR) and butylene rubber (SBR) Shows excellent promotion effect. Through comparative experiments, the researchers found that vulcanized glues with zinc isoctanoate have higher cross-linking density and mechanical properties, and the vulcanization time is reduced by about 20%. In addition, the study also pointed out that zinc isoctanoate can significantly improve the aging resistance of vulcanized glue and extend its service life.
Germany Research: Researchers from the Fraunhofer Institute in Germany have developed a new zinc/sulfur composite vulcanization system and applied it to automobiles Tires are being manufactured. Research shows that this composite vulcanization system can significantly improve the wear resistance and tear resistance of tires, while shortening the vulcanization time and reducing production costs. In addition, the study also found that the addition of zinc isoctanoate can improve the UV resistance of the tire and extend its life span when used outdoors.
Japanese research: Researchers from the University of Tokyo, Japan studied the mechanism of action of zinc isoctanoate in the vulcanization of neoprene (CR) through molecular simulation technology. Research shows that zinc isoctanoate can react with chlorine atoms on the molecular chain of neoprene to form zinc-chlorine compounds (ZnCl), thereby promoting the progress of the vulcanization reaction. In addition, the study also found that the addition of zinc isoctanoate can significantly improve the oil and heat resistance of neoprene, making it promising in industrial seals and anticorrosion coatings.

2. Domestic research progress

Research from the Chinese Academy of Sciences: Researchers from the Institute of Chemistry of the Chinese Academy of Sciences have developed a new environmentally friendly vulcanization accelerator based on zinc isooctanoate and applied it to the manufacturing of high-speed rail shock absorbers middle. Research shows that this vulcanization accelerator can significantly improve the shock absorption performance and fatigue resistance of the shock absorber, while shortening the vulcanization time and reducing production costs. In addition, the study also pointed out that the addition of zinc isoctanoate can improve the anti-aging performance of the shock absorber and extend its service life.
Research at Tsinghua University: Researchers from the Department of Materials Science and Engineering at Tsinghua University studied the application effect of zinc isoctanoate in silicone rubber (SiR) through experiments. Research shows that zinc isoctanoate can significantly improve the vulcanization efficiency and mechanical properties of silicone rubber, while improving its high temperature and weather resistance. In addition, the study also found that the addition of zinc isoctanoate can improve the biocompatibility of silicone rubber and make its application prospects in the medical field broad.
Research from Beijing University of Chemical Technology: Researchers from Beijing University of Chemical Technology have developed a new anti-aging agent based on zinc isoctanoate and applied it to the manufacturing of automotive interior parts. Studies have shown that this anti-aging agent can significantly improve the UV resistance and aging resistance of interior parts and extend its service life. In addition, the study also found that the addition of zinc isoctanoate can improve the appearance quality and feel of interior parts and improve its market competitiveness.

Future development trends and prospects

With the increase in global environmental awareness and the rapid development of the rubber industry, zinc isoctanoate, as an efficient and environmentally friendly rubber additive, its market demand will continue to grow. In the future, the application of zinc isoctanoate in the rubber industry will show the following development trends:

1. Greening and environmentally friendly

As countries become increasingly strict with environmental protection requirements, traditional sulfurization accelerators containing heavy metals such as lead and cadmium have gradually been eliminated, and replaced by more environmentally friendly organic zinc compounds, such as zinc isoctanoate. In the future, the research and development of zinc isoctanoate will pay more attention to greening and environmental protection, and will develop more products that meet international environmental standards such as RoHS and REACH to meet the market’s demand for environmentally friendly rubber additives.

2. Functionalization and multifunctionalization

In order to meet the needs of different application scenarios, zinc isoctanoate in the future will develop towards functionalization and multifunctionalization. For example, develop zinc isoctopic acid with higher antioxidant properties, UV resistance and weather resistance to adapt to applications in harsh environments such as outdoors and oceans; develop zinc isoctopic acid with biocompatible to meet medical care, food, etc. Special requirements for rubber materials in the field.

3. Efficiency and low cost

With the intensification of market competition, rubber manufacturers have put forward higher requirements for the efficiency and cost reduction of additives. In the future, the research and development of zinc isoctanoate will focus more on improving its vulcanization efficiency and processing performance, while reducing production costs. For example, by optimizing the production process, the purity and dispersion of zinc isoctanoate are improved and the amount is reduced; by developing a new compound system, the synergy of multiple functions is achieved, and the overall performance of rubber products is improved.

4. Intelligence and customization

With the continuous development of intelligent manufacturing technology, the future rubber industry will be moreIntelligent and customized. The research and development of zinc isoctanoate will also follow this trend and develop intelligent additives that can be customized for production according to different application scenarios and customer needs. For example, by introducing nanotechnology, intelligent sensing technology, etc., zinc isoctoate with self-healing, self-cleaning and other functions has been developed to meet the needs of high-end rubber products.

Conclusion

To sum up, zinc isoctanoate, as an efficient and environmentally friendly rubber additive, has a wide range of application prospects in the rubber industry. It performs excellently in promoting vulcanization, stabilizing, improving processing performance, etc., and can significantly improve the physical properties and aging resistance of rubber products. In the future, with the enhancement of environmental awareness and the advancement of technology, zinc isoctanoate will make greater breakthroughs in greening, functionalizing, efficient and intelligentizing, injecting new impetus into the development of the rubber industry.

Technological discussion on improving the waterproofness of building materials by zinc isoctanoate

admin 2月 13th, 2025 News

Introduction

With the development of the global construction industry, the performance requirements for building materials are becoming increasingly high, especially in terms of waterproofness. Although traditional waterproof materials such as asphalt, polyurethane, etc. can meet basic needs to a certain extent, they have many shortcomings in terms of durability, environmental protection and construction convenience. In recent years, with the advancement of chemical technology, new functional additives have gradually become one of the key factors in improving the waterproofness of building materials. Zinc 2-Ethylhexanoate, as an efficient functional additive, has shown great application potential in the field of waterproofing of building materials due to its excellent chemical stability and unique physical properties.

Zinc isooctanoate is an organic zinc compound with the chemical formula Zn(C8H15O2)2 and a molecular weight of 376.7 g/mol. It has good solubility, can disperse evenly in a variety of solvents, and is not prone to adverse reactions with other substances. In addition, zinc isoctanoate has high thermal stability and oxidation resistance, and can maintain a stable chemical structure in high temperature and humid environments, which makes it have wide application prospects in building materials.

In building materials, zinc isoctanoate mainly reacts chemically with active groups on the surface of the substrate to form a dense protective film, thereby effectively preventing moisture penetration. At the same time, zinc isoctanoate can also enhance the adhesion and weather resistance of the material and extend the service life of the building. Therefore, studying the application of zinc isoctanoate in building materials will not only help improve the waterproof performance of buildings, but also promote the process of green buildings and sustainable development.

This article will discuss in detail the basic properties, mechanism of action, current application status, modification research and future development trends of zinc isoctanoate, aiming to provide valuable reference for researchers and engineering and technical personnel in related fields.

The basic properties of zinc isoctanoate

Zinc 2-Ethylhexanoate is a common organic zinc compound with a chemical formula of Zn(C8H15O2)2 and a molecular weight of 376.7 g/mol. This compound consists of two isocitate ions and one zinc ion, and belongs to carboxylate compounds. Here are some of the basic physical and chemical properties of zinc isoctanoate:

1. Physical properties

Appearance: Zinc isoctanoate is usually a white or slightly yellow crystalline powder with good fluidity.
Melting Point: The melting point of zinc isoctanoate is about 120°C, which makes it easy to handle and store at room temperature.
Solution: Zinc isoctanoate has good solubility in organic solvents, especially in polar solvents such as alcohols, ketones, and esters. However, it’s in the waterThe solubility in the medium is low, at only 0.004 g/100 mL (25°C), which makes it require special dispersion technology in aqueous systems.
Density: The density of zinc isoctanoate is about 1.1 g/cm³, which makes it have good settlement stability in the mixture.
Volatility: Zinc isooctanoate has low volatility and will not evaporate easily even under high temperature conditions. Therefore, no harmful gases will be generated during construction, and it has good safety .

2. Chemical Properties

Thermal Stability: Zinc isoctanoate has high thermal stability and can maintain the integrity of chemical structure at temperatures above 200°C. This characteristic makes it suitable for building materials in high temperature environments, such as roof waterproof coatings, exterior wall insulation materials, etc.
Antioxidation: Zinc isoctanoate has strong antioxidant ability, can effectively inhibit the free radical reaction in the material and delay the aging process of the material. Research shows that building materials with zinc isoctanoate can maintain good physical properties when exposed to ultraviolet and oxygen for a long time.
Reactive activity: Zinc isoctanoate can react chemically with a variety of functional groups, especially with substances containing active groups such as hydroxyl groups, carboxyl groups, amino groups, etc. to form stable complexes. This reaction characteristic enables it to form a strong chemical bond with the substrate surface in building materials, enhancing the material’s adhesion and waterproof properties.
pH sensitivity: Zinc isooctanoate is more sensitive to pH. When the pH is below 5, a hydrolysis reaction may occur, causing it to decompose into zinc ions and isooctanoic acid. Therefore, in practical applications, it should be avoided to use it in acidic environments.

3. Safety and environmental protection

Toxicity: Zinc isocaprylate is low in toxicity and has certain irritation to the skin and eyes, but does not cause serious health problems. According to the International Chemical Safety Card (ICSC), the acute oral toxicity LD50 value of zinc isoctanoate is 2000 mg/kg (rat), which is a low-toxic substance.
Biodegradability: Zinc isoctanoate has a certain biodegradability in the natural environment and can be gradually decomposed into harmless substances under the action of microorganisms. Studies have shown that zinc isoctanoate degraded rapidly in soil and water bodies and will not cause long-term pollution to the environment.
Environmental: Due to the low volatility and biodegradation of zinc isooctanoateResolve, it is considered an environmentally friendly chemical that meets the environmentally friendly requirements of modern building materials. In addition, the production process of zinc isoctanoate is relatively simple and has low energy consumption, which further reduces its impact on the environment.

4. Preparation method

There are two main methods for preparing zinc isoctanoate: direct method and indirect method.

Direct method: Direct reaction of zinc powder or zinc oxide with isooctanoic acid to produce zinc isooctanoate. This method is simple to operate, mild reaction conditions, and is suitable for large-scale industrial production. The reaction equation is as follows:
[ Zn + 2C8H15COOH ? Zn(C8H15COO)2 + H2 ]
Indirect method: First react zinc powder or zinc oxide with sodium hydroxide to form zinc hydroxide, and then react with isooctanoic acid to form zinc isooctanoate. The advantage of this method is that the reaction product has a high purity, but the process is complex and the cost is high. The reaction equation is as follows:
[ Zn(OH)2 + 2C8H15COOH ? Zn(C8H15COO)2 + 2H2O ]

To sum up, zinc isoctanoate has excellent physical and chemical properties, especially in terms of thermal stability, antioxidant and reactive activity. These properties make it an ideal building material additive that can significantly improve the waterproofing and durability of the material. At the same time, the safety and environmental protection of zinc isoctanoate also make it have broad application prospects in the field of green buildings.

The mechanism of action of zinc isoctanoate in building materials

The application of zinc isoctanoate in building materials is mainly based on its unique chemical structure and reaction characteristics. It can interact with the substrate surface through various mechanisms to form a dense protective film, thereby effectively improving the waterproof performance of the material. Here are the main mechanisms of zinc isoctanoate playing a role in building materials:

1. Surface chemical reaction

The zinc ions in zinc isoctanoate have strong coordination ability and can coordinate with active groups (such as hydroxyl, carboxyl, amino, etc.) on the surface of the substrate to form a stable complex. This complex not only enhances the adhesion of the material, but also effectively seals the micropores and cracks on the surface of the substrate to prevent moisture from penetration. Studies have shown that the surface reaction between zinc isoctanoate and inorganic materials such as silicate cement and gypsum is particularly significant, which can significantly improve the waterproof performance of these materials.

For example, when zinc isoctanoate reacts with Ca(OH)? in silicate cement, a dense calcium-zinc composite film is formed, which has good hydrophobicity and corrosion resistance. The reaction equation is as follows:
[ Ca(OH)? + Zn(C8H15COO)2 ? CaZn(C8H15COO)4 + 2H2O ]

In addition, zinc isoctanoate can also cross-link with active groups in organic polymers to form a three-dimensional network structure, further enhancing the mechanical properties and waterproof properties of the material. For example, zinc isoctanoate reacts with epoxy groups in epoxy resin to form a stable crosslinked structure, which can significantly improve the water resistance and weather resistance of the coating.

2. Interface modification

Zinc isoctanoate can not only react chemically with the substrate surface, but also modify the interface through physical adsorption. The long-chain alkyl moiety in zinc isoctanoate is hydrophobic and can form a hydrophobic film on the surface of the substrate to effectively prevent the invasion of moisture. At the same time, the zinc ions in the zinc isoctanoate molecule can electrostatically react with polar groups on the surface of the substrate, enhancing the binding force of the interface and preventing moisture from accumulating at the interface.

Study shows that zinc isoctanoate has a particularly obvious interface modification effect on porous materials such as concrete and masonry. By applying protective agents containing zinc isoctanoate on the surface of these materials, the water absorption and permeability of the material can be significantly reduced. The experimental results show that the water absorption rate of concrete samples treated with zinc isoctanoate was reduced by about 50% and the permeability coefficient was reduced by about 70%.

3. Hydrophobic effect

Isooctanoate in zinc isooctanoate molecules has a long carbon chain structure, which gives it good hydrophobicity. When zinc isoctanoate reacts with the surface of the substrate, a hydrophobic layer will be formed on the surface of the material, effectively preventing the penetration of moisture. Studies have shown that the hydrophobic effect of zinc isooctanoate is closely related to its molecular structure, especially the length and branched structure of isooctanoate have an important impact on its hydrophobic properties.

To verify the hydrophobic effect of zinc isoctanoate, the researchers conducted a contact angle test. The results show that the water contact angle of the untreated concrete surface is about 50°, while the water contact angle of the concrete surface after zinc isoctanoate treatment reaches above 110°, showing obvious superhydrophobic characteristics. This shows that zinc isoctanoate can significantly improve the surface hydrophobicity of the material, thereby enhancing its waterproofing properties.

4. Antibacterial and mildew

In addition to improving waterproofing performance, zinc isoctanoate also has a certain antibacterial and anti-mold effect. Zinc ions have broad-spectrum antibacterial activity and can inhibit the growth and reproduction of a variety of bacteria, fungi and molds. Studies have shown that zinc isocitate has a strong inhibitory effect on common pathogenic microorganisms such as E. coli, Staphylococcus aureus, and Aspergillus niger, and can effectively prevent building materials from becoming moldy and deteriorating in humid environments.

The antibacterial and anti-mold mechanism of zinc isocitate is mainly related to the release of its zinc ions. Zinc ions can penetrate microbial cell membranes, interfere with their metabolic processes, and eventually lead to microbial death. In addition, zinc isoctanoate can react with proteins on the surface of microorganisms, destroy its cellular structure, and further enhance the antibacterial effect.

5. Weather resistance enhancement

Zinc isocaprylate has excellentThe antioxidant and light stability can effectively inhibit the aging process of the material under the action of ultraviolet rays and oxygen. Research shows that zinc isoctanoate can capture free radicals and prevent the chain reaction it triggers, thereby delaying the aging rate of material. In addition, zinc isoctanoate can also work synergistically with ultraviolet absorbers to further improve the weather resistance of the material.

To verify the weather-enhanced effect of zinc isoctanoate, the researchers conducted accelerated aging tests. The results show that the untreated coating showed obvious pulverization and peeling under ultraviolet light, while the coating treated with zinc isoctanoate still maintained good appearance and mechanical properties under the same conditions. This shows that zinc isoctanoate can significantly improve the weather resistance of the coating and extend its service life.

Application Status

Zinc isooctanoate, as an efficient building material additive, has been widely used in many fields. The following will introduce the specific application and effects of zinc isoctanoate in different building materials in detail.

1. Concrete waterproofing

Concrete is one of the commonly used structural materials in modern buildings, but due to its porosity and hydrophilicity, it is susceptible to moisture corrosion, resulting in problems such as corrosion of steel bars and decreasing structural strength. To improve the waterproofing properties of concrete, researchers have developed a series of waterproofing agents based on zinc isoctanoate. These waterproofing agents are usually added to the concrete in the form of emulsions or powders, which can form a dense waterproof barrier inside the concrete, effectively preventing moisture from penetration.

Study shows that zinc isoctanoate can react with Ca(OH)? in concrete to form a calcium-zinc composite, fill the micropores and cracks inside the concrete, significantly reducing the water absorption and permeability of the concrete. The experimental results show that the water absorption rate of concrete samples treated with zinc isoctanoate was reduced by about 50% and the permeability coefficient was reduced by about 70%. In addition, zinc isoctanoate can enhance the anti-freeze-thaw properties of concrete and extend its service life.

2. Roof waterproof coating

Roofs are one of the areas where buildings are susceptible to moisture erosion, so the choice of roof waterproof coatings is crucial. Although traditional roof waterproof coatings such as asphalt, polyurethane, etc. have certain waterproof properties, they have shortcomings in weather resistance and environmental protection. In recent years, new waterproof coatings based on zinc isoctanoate have gradually become mainstream products on the market.

Zinc isooctanoate waterproof coatings usually use organic solvents as carriers, and an appropriate amount of zinc isooctanoate and other additives are added to form a coating with good fluidity and adhesion. After coating, zinc isoctanoate can react chemically with the surface of the substrate to form a dense protective film, effectively preventing moisture from penetration. In addition, zinc isoctanoate can enhance the weather resistance and antibacterial and mildew resistance of the paint, and extend the service life of the roof.

Study shows that zinc isoctanoate waterproof coatings perform better than traditional coatings under long-term exposure to ultraviolet and rainwater environments. The experimental results show that the roof surface treated with zinc isoctanoate is in an accelerated aging testThere was no obvious pulverization and peeling phenomenon, and the surface water contact angle reached above 110°, showing good superhydrophobic characteristics. This shows that zinc isoctanoate waterproof coating not only has excellent waterproof performance, but also has good weather resistance and environmental protection.

3. Exterior wall insulation material

Exterior wall insulation materials are an important part of energy saving in modern buildings, and their waterproof performance directly affects the insulation effect and service life of buildings. Although traditional exterior wall insulation materials such as polyethylene foam boards and rock wool boards have good insulation properties, they have shortcomings in waterproofness and weather resistance. In recent years, new exterior wall insulation materials based on zinc isoctanoate have gradually attracted attention.

Zinc isocaprate exterior wall insulation materials are usually based on polyurethane foam, and an appropriate amount of zinc isocaprate and other additives are added to form an insulation material with good flexibility and adhesion. After installation, zinc isoctanoate can react chemically with the wall surface to form a dense protective film, effectively preventing moisture from penetration. In addition, zinc isoctanoate can also enhance the weather resistance and antibacterial and mildew resistance of thermal insulation materials, and extend its service life.

Study shows that zinc isoctanoate exterior wall insulation materials perform better than traditional insulation materials when exposed to long-term ultraviolet rays and rainwater. The experimental results show that the exterior wall insulation material treated with zinc isoctanoate did not show obvious pulverization and peeling in the accelerated aging test, and the surface water contact angle reached above 110°, showing good superhydrophobic characteristics. This shows that zinc isoctanoate exterior wall insulation material not only has excellent insulation properties, but also has good waterproofness and weather resistance.

4. Basement waterproofing

Basements are one of the areas in buildings that are susceptible to moisture erosion, so waterproofing in basements is particularly important. Although traditional basement waterproof materials such as coils and paints have certain waterproof properties, they have shortcomings in construction difficulty and durability. In recent years, new waterproof materials based on zinc isoctanoate have gradually become mainstream products on the market.

Zinc isooctanoate basement waterproofing materials are usually based on cement-based materials, and an appropriate amount of zinc isooctanoate and other additives are added to form a waterproofing material with good fluidity and adhesion. After construction, zinc isoctanoate can react chemically with the surface of the substrate to form a dense protective film, effectively preventing moisture from penetration. In addition, zinc isoctanoate can enhance the weather resistance and antibacterial and mildew resistance of waterproof materials, and extend its service life.

Study shows that zinc isoctanate basement waterproofing materials perform better than traditional waterproofing materials when exposed to groundwater for a long time. The experimental results show that the basement wall treated with zinc isoctanoate did not have obvious leakage during the immersion test, and the surface water contact angle reached more than 110°, showing good superhydrophobic characteristics. This shows that zinc isoctanoate basement waterproofing material not only has excellent waterproof performance, but also has good durability and environmental protection.

5. Anticorrosion coating

Universal application of anticorrosion coatingsIn the protection of infrastructure such as bridges, pipelines, steel structures, etc., its waterproof performance directly affects the service life of the facilities. Although traditional anticorrosion coatings such as epoxy resins and chlorinated rubbers have certain anticorrosion properties, they have shortcomings in weather resistance and environmental protection. In recent years, new anticorrosion coatings based on zinc isoctanoate have gradually become mainstream products on the market.

Zinc isooctanoate anticorrosion coatings usually use organic solvents as carriers, and an appropriate amount of zinc isooctanoate and other additives are added to form a coating with good fluidity and adhesion. After coating, zinc isoctanoate can react chemically with the surface of the substrate to form a dense protective film, effectively preventing the penetration of moisture and oxygen. In addition, zinc isoctanoate can enhance the weather resistance and antibacterial and mildew resistance of the paint, and extend the service life of the facility.

Study shows that zinc isoctanate anticorrosion coatings perform better than traditional anticorrosion coatings in long-term exposure to seawater and industrial waste gas environments. The experimental results show that the steel structure surface treated with zinc isoctanoate did not show obvious corrosion in the accelerated aging test, and the surface water contact angle reached above 110°, showing good superhydrophobic characteristics. This shows that zinc isocitate anticorrosion coatings not only have excellent anticorrosion properties, but also have good weather resistance and environmental protection.

Modification Research

Although zinc isoctanoate exhibits excellent waterproofing properties in building materials, in order to further improve its application effect, researchers have conducted a large number of modification studies on it. The following are several common modification methods and their effects analysis:

1. Nanomorphic Modification

Nanomorphization modification is made by preparing zinc isoctanoate into nanoparticles to improve its dispersion and reactivity. Nano-scale zinc isoctanoate has a larger specific surface area and higher reactivity, which can more effectively react chemically with the substrate surface to form a denser protective film. Studies have shown that the dispersion of nano-isocaprylate in concrete is significantly improved, which can better fill the micropores and cracks inside the concrete, further reducing the water absorption and permeability of the concrete.

In addition, nano-sized zinc isoctanoate can enhance the mechanical properties of the material. The experimental results show that the concrete samples treated with nano-isocaprylate have significantly improved in terms of compressive strength and flexural strength. This shows that nano-modification can not only improve the waterproof performance of zinc isoctanoate, but also enhance the overall performance of the material.

2. Compound Modification

Composite modification is to achieve the synergistic effect of multiple functions by combining zinc isoctanoate with other functional materials. Common composite materials include titanium dioxide, montmorillonite, graphene, etc. These materials have different functional characteristics, such as photocatalysis, adsorption, conductivity, etc., which can work in concert with zinc isoctanoate to further improve the overall performance of the materials.

For example, after zinc isoctanoate is combined with titanium dioxide, strong oxidative free radicals can be generated under light conditions, further enhancing the antibacterial and anti-mold properties of the material. Research shows that zinc isoctanoate-titanium dioxideComposite materials have a stronger inhibitory effect on common pathogenic microorganisms such as E. coli and Staphylococcus aureus, and can effectively prevent the material from becoming moldy and deteriorating in humid environments.

For example, after zinc isoctanoate is combined with montmorillonite, a protective film with self-healing function can be formed on the surface of the material. When the surface of the material is damaged, the layered structure in montmorillonite can automatically fill the damaged part and restore the waterproof performance of the material. The experimental results show that the concrete samples treated with zinc isoctanoate-montmorillonite composite still maintain a low water absorption rate and permeability coefficient after multiple scratch tests.

3. Graft modification

Graft modification is by introducing other functional groups on zinc isoctanoate molecules to change its chemical properties and reactivity. Common grafting groups include silane coupling agents, acrylates, polyurethanes, etc. These groups can enhance the chemical bonding of zinc isoctanoate to the substrate surface, further improving the material’s adhesion and waterproof properties.

For example, after zinc isoctanoate is grafted with a silane coupling agent, a protective film with excellent adhesion can be formed on the concrete surface. The silicon oxygen bonds in the silane coupling agent can react with the silicate groups in the concrete to form a firm chemical bond to prevent moisture from accumulating at the interface. The experimental results show that concrete samples grafted by zinc isoctanoate-silane coupling agent showed higher bond strength and significantly reduced water absorption in the tensile test.

For example, after zinc isoctanoate is grafted with acrylate, a polymer network with self-crosslinking function can be formed in the coating. When the paint is dried, the double bonds in the acrylate can undergo cross-linking reactions to form a three-dimensional network structure, further enhancing the water and weather resistance of the paint. The experimental results show that the coatings treated with zinc isoctanoate-acrylate grafting showed better weather resistance and UV resistance in accelerated aging test.

4. Bio-based modification

Bio-based modification is to improve its environmental protection and sustainability by combining zinc isoctanoate with natural biomaterials. Common bio-based materials include chitosan, cellulose, lignin, etc. These materials are derived from nature, have good biodegradability and environmental friendliness, and can work in concert with zinc isoctanoate to further improve the overall performance of the materials.

For example, after zinc isoctanoate is combined with chitosan, a protective film with antibacterial and anti-mold function can be formed on the surface of the material. The amino group in chitosan can coordinate with zinc ions in zinc isoctanoate to form a stable complex and enhance the antibacterial properties of the material. Studies have shown that zinc isoctanoate-chitosan composites have a stronger inhibitory effect on common pathogenic microorganisms such as E. coli and Staphylococcus aureus, and can effectively prevent the material from becoming moldy and deteriorating in humid environments.

For example, after zinc isoctanoate is combined with cellulose, a protective film with excellent flexibility can be formed on the surface of the material. The hydroxyl groups in cellulose can react with zinc ions in zinc isoctanoate to form stable chemical bonds, which enhancesThe flexibility and impact resistance of the material. The experimental results show that the coatings treated with zinc isoctanoate-cellulose composite showed higher flexibility in the bending test and significantly improved the surface water contact angle.

Future development trends

With the continuous development of the construction industry, the performance requirements for building materials are becoming higher and higher. Zinc isoctanoate, as an efficient building material additive, has shown great potential in improving waterproofing performance. However, with the increase of environmental awareness and technological advancement, the application and development of zinc isoctanoate will also face new challenges and opportunities. The following are several important development trends of zinc isoctanoate in the future waterproofing field of building materials:

1. Greening and sustainable development

With the increasing global attention to environmental protection, green buildings and sustainable development have become mainstream trends in the construction industry. Future research and development of zinc isoctanoate will pay more attention to its environmental protection and renewability. On the one hand, researchers will work to develop more environmentally friendly production processes to reduce energy consumption and pollutant emissions in the production process of zinc isoctanoate. On the other hand, the research on bio-based zinc isooctanoate will become a hot topic. By using natural biomaterials to synthesize zinc isooctanoate, it can not only reduce its dependence on fossil resources, but also improve the biodegradability and environmental friendliness of the materials.

Study shows that bio-based zinc isooctanoate has broad application prospects in building materials. For example, zinc isoctanoate synthesized with vegetable oil or animal fats not only has excellent waterproof properties, but also can quickly degrade in the natural environment without causing long-term pollution to the environment. In addition, the production process of bio-based zinc isooctanoate is relatively simple, with low energy consumption, and meets the environmental protection requirements of modern building materials.

2. Intelligent and multifunctional

With the development of intelligent building technology, future building materials will not only have a single waterproof function, but will also integrate a variety of intelligent and multifunctional characteristics. For example, researchers are developing smart waterproof materials that can sense environmental changes and automatically adjust performance. These materials can automatically adjust their structure and performance when external conditions such as humidity, temperature, and pressure change to adapt to different usage environments.

Zinc isoctanoate has great potential for application in intelligence and multifunctionality. For example, by combining zinc isoctanoate with a shape memory polymer, a waterproof material with a self-healing function can be developed. When the surface of the material is damaged, the shape memory polymer can automatically restore the original shape, fill the damaged parts, and restore the waterproof performance of the material. In addition, zinc isoctanoate can also be combined with other functional materials to develop composite materials with antibacterial, fireproof, heat insulation and other functions to meet the needs of different application scenarios.

3. Application of nanotechnology and microcapsule technology

Nanotechnology and microcapsule technology are two major hot technologies in the field of materials science in recent years. Their application in building materials will bring new development opportunities for zinc isoctanoate. Nanoized zinc isoctoate has moreLarge specific surface area and higher reactivity can more effectively react chemically with the surface of the substrate to form a denser protective film. In addition, nano-sized zinc isoctanoate can also enhance the mechanical properties of the material and extend its service life.

Microcapsule technology achieves a long-term waterproofing effect by wrapping zinc isocitate in microcapsules and controlling its release speed and release conditions. Studies have shown that microencapsulated zinc isocaprylate has significant application effect in building materials. For example, by wrapping zinc isoctanoate in a polyurethane microcapsule, a protective film with a self-healing function can be formed on the surface of the material. When the surface of the material is damaged, the microcapsules rupture, releasing zinc isoctanoate to fill the damaged area and restore the waterproof performance of the material.

4. Standardization and standardization

With the widespread application of zinc isoctanoate in building materials, it is particularly important to formulate unified standards and specifications. Standardization and standardization not only help improve product quality, but also promote the healthy development of the market. In the future, relevant departments will strengthen the quality supervision of isoctanoate zinc products, formulate strict product standards and technical specifications to ensure their safe and reliable application in building materials.

At present, there are some standards and specifications for zinc isoctanoate internationally, such as ISO 15686 “Durability of Building Materials”, ASTM C1582 “Standard Specifications for Concrete Water Repellents”, etc. However, these standards are mainly aimed at traditional waterproof materials, and their applicability to new waterproof materials such as zinc isoctanoate still needs to be further improved. Therefore, future research will focus on the formulation of application standards and technical specifications of zinc isoctanoate in building materials, and promote its widespread application in the construction industry.

5. International Cooperation and Exchange

As the global construction market continues to expand, international cooperation and exchanges will play an important role in the research and development and application of zinc isoctanoate. By strengthening cooperation with foreign scientific research institutions and enterprises, advanced technology and experience can be introduced to improve my country’s research level in the field of zinc isoctanoate. For example, the United States, Germany, Japan and other countries have rich experience and advanced technology in the field of waterproofing of building materials. Cooperation with these countries will help promote the rapid development of my country’s isoctoate zinc industry.

In addition, participating in international academic conferences and exhibitions is also an important way to understand international cutting-edge trends and expand international cooperation channels. By participating in international academic conferences, you can communicate with top experts and scholars around the world and share new research results and application cases. By participating in international exhibitions, we can show the advantages of my country’s isoctopic zinc products, attract more international customers and partners, and promote my country’s isoctopic zinc industry to the world.

Conclusion

To sum up, zinc isoctanoate, as an efficient building material additive, has shown great application potential in improving waterproofing performance. Its unique chemical structure and reaction characteristics enable it to react chemically with the surface of the substrate to form a dense protective film, which is effectivePrevent moisture from penetration. In addition, zinc isoctanoate also has good thermal stability, antioxidant and antibacterial and mildew resistance, which can significantly improve the weather resistance and service life of the material.

Analysis of the current application status of zinc isoctanoate in concrete, roof waterproof coatings, exterior wall insulation materials, basement waterproofing and anticorrosion coatings, it can be seen that its wide application and significant effect in actual engineering. Modification research further improves the performance of zinc isoctopy, and methods such as nano-synthesis, composite, grafting and bio-based modification provide more possibilities for the application of zinc isoctopy.

Looking forward, the application of zinc isoctanoate in the field of waterproofing of building materials will develop towards green, intelligent, multifunctional, nanotechnology and microcapsule technology applications, as well as standardization and standardization. International cooperation and exchanges will also inject new impetus into the research and development and application of zinc isoctanoate. I believe that with the continuous advancement of technology and the gradual expansion of the market, zinc isoctanoate will definitely play a more important role in the field of waterproofing of building materials and promote the sustainable development of the construction industry.

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Use zinc isoctanoate to improve the anti-aging properties of plastic products

Overview and application background of zinc isoctanoate

The chemical structure and properties of zinc isoctanoate

Physical and chemical properties

Thermal Stability

Optical Performance

Luction Performance

Mechanism of action of zinc isoctanoate in plastic anti-aging

Free Radical Capture

Ultraviolet absorption

Metal ion passivation

Synergy Effect

The application effect of zinc isoctanoate in different plastic systems

Polyethylene (PE)

Polypropylene (PP)

Polyvinyl chloride (PVC)

Polycarbonate (PC)

Related research progress at home and abroad

Progress in foreign research

Domestic research progress

Conclusion and Outlook

The role of zinc isoctanoate as a stabilizer in the rubber industry

Overview of the application of zinc isoctanoate in the rubber industry

Product parameters and quality standards

1. Chemical composition and purity

2. Physical properties

3. Thermal Stability

4. Mechanical properties

5. Safety and environmental protection

6. Biodegradability

Mechanism of action of zinc isoctanoate

1. Vulcanization promotion effect

2. Stabilization

3. Improve processing performance

Synthetic effect of zinc isoctanoate and other additives

1. Synergistic effect with sulfur

2. Synergistic effects with anti-aging agents

3. Synergistic effects with plasticizers

4. Synergistic effect with filler

Progress in domestic and foreign research and application examples

1. Progress in foreign research

2. Domestic research progress

Future development trends and prospects

1. Greening and environmentally friendly

2. Functionalization and multifunctionalization

3. Efficiency and low cost

4. Intelligence and customization

Conclusion

Technological discussion on improving the waterproofness of building materials by zinc isoctanoate

Introduction

The basic properties of zinc isoctanoate

1. Physical properties

2. Chemical Properties

3. Safety and environmental protection

4. Preparation method

The mechanism of action of zinc isoctanoate in building materials

1. Surface chemical reaction

2. Interface modification

3. Hydrophobic effect

4. Antibacterial and mildew

5. Weather resistance enhancement

Application Status

1. Concrete waterproofing

2. Roof waterproof coating

3. Exterior wall insulation material

4. Basement waterproofing

5. Anticorrosion coating

Modification Research

1. Nanomorphic Modification

2. Compound Modification

3. Graft modification

4. Bio-based modification

Future development trends

1. Greening and sustainable development

2. Intelligent and multifunctional

3. Application of nanotechnology and microcapsule technology

4. Standardization and standardization

5. International Cooperation and Exchange

Conclusion

PRODUCT