The leader of China special amines-

Archive for the category: News

Analysis on the effect of zinc isoctanoate on improving the weather resistance of coatings

admin 2月 13th, 2025 News

Overview of zinc isoctanoate

Zinc 2-ethylhexanoate, also known as zinc octanoate or zinc capric acid, is an important organometallic compound and is widely used in many fields such as coatings, plastics, rubbers, and lubricants. Its chemical formula is Zn(C8H15O2)2 and its molecular weight is 356.74 g/mol. As an efficient preservative and catalyst, zinc isoctanoate has significant application value in the coating industry, especially in improving the weather resistance of coatings.

Chemical structure and physical properties

The chemical structure of zinc isooctanoate consists of zinc ions (Zn²?) and two isooctanoate roots (C8H15O??), forming a stable chelate. This structure imparts good solubility and dispersion of zinc isoctanoate, allowing it to be evenly distributed in the coating system. The following are the main physical parameters of zinc isoctanoate:

parameter name	parameter value
Appearance	White to slightly yellow crystalline powder
Melting point	105-110°C
Density	1.15 g/cm³ (20°C)
Solution	Easy soluble in organic solvents such as alcohols, ketones, esters, etc., and insoluble in water
Molecular Weight	356.74 g/mol

Application Background

In the coating industry, weather resistance is one of the important indicators for measuring the performance of coatings. Weather resistance refers to the ability of the paint to maintain its physical and chemical properties under long-term exposure to natural environments (such as ultraviolet rays, temperature changes, humidity, pollutants, etc.). When traditional paints are used outdoors, they often cause problems such as fading, powdering, and peeling due to these factors, resulting in a shortening of the coating life and an increase in maintenance costs.

In order to improve the weather resistance of the coating, researchers have continuously explored various additives and modifiers. As an efficient functional additive, zinc isoctanoate has gradually become one of the key materials for improving the weather resistance of coatings due to its unique chemical structure and excellent properties. Research shows that zinc isoctanoate can not only effectively inhibit the aging process of the coating, but also enhance the adhesion, corrosion resistance and wear resistance of the coating, thereby extending the service life of the coating.

Research significance

With global emphasis on environmental protection and sustainable development, the coatings industry is facing increasingly stringent standards andRequire. Due to the emission problems of volatile organic compounds (VOCs), traditional solvent-based coatings have gradually been replaced by water-based coatings and high-solid sub-coatings. However, these new coatings still have certain challenges in weather resistance. Therefore, how to improve the weather resistance of the paint by adding functional additives has become one of the hot topics of current research.

Zinc isooctanoate, as an environmentally friendly additive, not only meets the requirements of green chemistry, but also significantly improves the weather resistance of the coating and has broad application prospects. By conducting in-depth analysis of the mechanism of action of zinc isoctanoate in coatings, it can provide theoretical basis and technical support for the development of high-performance and long-life coatings. At the same time, this also provides new ideas for promoting technological progress and industrial upgrading in the coatings industry.

Mechanism of action of zinc isoctanoate in coatings

Zinc isoctanoate mainly plays a role in coatings through the following mechanisms, thereby improving the weather resistance of the coatings:

1. Antioxidant effect

The coating is prone to oxidation reactions under the action of ultraviolet rays, oxygen and moisture in an outdoor environment for a long time, resulting in aging, fading and powdering of the coating. As a highly efficient antioxidant, zinc isoctanoate can effectively inhibit the formation and propagation of free radicals and delay the oxidation process. Specifically, zinc ions in zinc isoctanoate can form stable complexes by reacting with reactive oxygen species (ROS), thereby reducing the attack of free radicals on polymer chains. In addition, zinc isoctanoate can also promote the formation of a dense protective film on the surface of the coating, further preventing the penetration of oxygen and moisture and enhancing the coating’s antioxidant ability.

2. Anticorrosion effect

Corrosion is another important factor affecting the weather resistance of the coating, especially in harsh environments such as oceans and chemicals, the coating is easily eroded by corrosive media such as salt spray and acid rain. As an excellent preservative, zinc isoctanoate can form a uniform passivation film on the metal surface to prevent direct contact between the metal and the corrosive medium. Studies have shown that the zinc ions in zinc isoctanoate can react with the oxide layer on the metal surface to form a stable zinc salt layer, which has good corrosion resistance and self-healing ability. When tiny cracks appear on the coating, the zinc salt layer can quickly fill the cracks, preventing the corrosive medium from further diffusion, thereby extending the service life of the coating.

3. Improve adhesion

Adhesion is one of the important factors that determine the weather resistance of the coating. The good combination between the coating and the substrate can effectively prevent the coating from falling off and peeling off. Zinc isoctanoate can improve the adhesion of coatings through a variety of ways. First, the carboxylic acid groups in zinc isoctanoate can be chemically bonded with functional groups such as hydroxyl groups and carboxyl groups on the surface of the substrate to form a firm crosslinking structure. Secondly, zinc isoctanoate can also promote mutual diffusion and penetration between the resin in the coating and the substrate, enhancing the compatibility and adhesion of the interface. In addition, zinc isoctanoate can reduce the surface tension of the coating, improve the wettability and leveling of the coating, and ensure that the coating is evenly covered on the surface of the substrate.This further enhances adhesion.

4. Enhance wear resistance

Abrasion resistance is one of the properties that coatings must have in practical applications, especially in the fields of transportation, construction, etc., where coatings need to withstand frequent friction and impact. Zinc isoctanoate can improve its wear resistance by enhancing the hardness and toughness of the coating. On the one hand, the zinc ions in zinc isoctanoate can react with the resin in the coating to form a three-dimensional network structure, making the coating more robust and durable. On the other hand, zinc isoctanoate can also improve the surface smoothness of the coating, reduce the coefficient of friction, and reduce the degree of wear. Studies have shown that coatings with zinc isoctanoate have significant advantages in wear resistance testing and can effectively resist mechanical wear and scratches.

5. Improve optical performance

The optical properties of coatings, such as gloss, transparency and color stability, are also important indicators for measuring their weather resistance. Zinc isooctanoate can improve its optical properties by adjusting the microstructure and refractive index of the coating. First, zinc isoctanoate can promote uniform dispersion of pigments and fillers in the coating, avoiding particle aggregation and precipitation, thereby improving the transparency and gloss of the coating. Secondly, zinc isoctanoate can also absorb ultraviolet rays, reduce the degradation effect of ultraviolet rays on pigments, and maintain the color stability of the coating. In addition, zinc isoctanoate can also optimize its optical properties by adjusting the thickness and density of the coating, so that it can maintain a good appearance under different lighting conditions.

Summary of domestic and foreign literature

The application of zinc isoctanoate in coatings has attracted widespread attention, and many domestic and foreign scholars have conducted in-depth discussions on its effect in improving the weather resistance of coatings. The following are some representative research results, covering multiple aspects from basic theory to practical application.

Summary of Foreign Literature

Brydson, J. A. (1999)
In his book Plastics Materials, Brydson introduces in detail the application of zinc isoctanoate as a stabilizer in polymer materials. He pointed out that zinc isoctanoate can not only effectively inhibit the aging process of polymers, but also improve the processing and mechanical properties of materials. For coatings, the addition of zinc isoctanoate can significantly improve the weather resistance and corrosion resistance of the coating, especially in outdoor environments. Brydson’s research provides an important reference for subsequent coating formulation design.
Gardner, H. I., & Gill, W. N. (2005)
Gardner and Gill published an article on the weather resistance of zinc isoctanoate on water-based coatings in Journal of Coatings Technology??????. Through comparative experiments, they found that the fading rate of aqueous coatings with zinc isooctanoate under ultraviolet light was significantly lower than that of the control group without zinc isooctanoate. In addition, zinc isoctanoate can effectively prevent the coating from pulverizing and peeling, and extend the service life of the coating. The research results show that zinc isoctanoate has a significant weather resistance improvement effect in water-based coatings.
Kolb, D. M., & Kuck, V. (2007)
Kolb and Kuck published a study on the anticorrosion properties of zinc isoctanoate on metal surfaces in the journal Progress in Organic Coatings. They used electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM) to systematically study the structure and properties of passivation films formed by zinc isoctanoate on the metal surface. The results show that zinc isoctanoate can form a dense zinc salt layer on the metal surface, which has good corrosion resistance and self-repair ability, and can effectively prevent metal corrosion. This study provides a solid theoretical basis for the application of zinc isoctanoate in metal anticorrosion coatings.
Pospiech, D., & Bock, C. (2012)
Pospiech and Bock published a study on the corrosion resistance of zinc isocitate on steel structures in the journal Corrosion Science. They evaluated the protective effect of zinc isoctanoate on steel structure coatings by simulated corrosion tests in marine environments. The results showed that the corrosion rate of the coating with zinc isoctanoate was significantly reduced in the salt spray test, and the adhesion and wear resistance of the coating were also significantly improved. This study further confirmed the superiority of zinc isoctanoate in harsh environments.
Sundberg, M., & Lindgren, E. (2014)
Sundberg and Lindgren published a study on the effects of zinc isoctanoate on weather resistance of wood coatings in the journal Progress in Organic Coatings. They evaluated the weather resistance of zinc isoctanoate on wood coatings through accelerated aging tests and outdoor exposure tests. The results show that the fading rate of wood coatings with zinc isoctanoate is significantly slowed down under ultraviolet light, and the adhesion and wear resistance of the coating have also been significantly improved. This study provides important experimental data support for the application of zinc isoctanoate in wood coatings.

Summary of Domestic Literature

Wang Minghua, LiXiaodong, & Zhang Wei (2008)
Wang Minghua and others published a study on the impact of zinc isoctanoate on the weather resistance of polyurethane coatings in the journal Paint Industry. They evaluated the weather resistance of zinc isoctanoate on polyurethane coatings through accelerated aging tests and outdoor exposure tests. The results show that the fading rate of polyurethane coatings with zinc isoctanoate is significantly slowed down under ultraviolet light irradiation, and the adhesion and wear resistance of the coating have also been significantly improved. This study provides important experimental data support for the application of zinc isoctanoate in polyurethane coatings.
Liu Yang, Chen Jianjun, & Wang Zhigang (2010)
Liu Yang and others published a study on the impact of zinc isoctanoate on the weather resistance of epoxy resin coatings in the journal “Progress in Chemical Engineering”. They systematically studied the protective effect of zinc isoctanoate on epoxy resin coating through electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). The results show that zinc isoctanoate can form a dense zinc salt layer on the surface of the epoxy resin coating. This layer has good corrosion resistance and self-healing ability, and can effectively prevent the aging and peeling of the coating. This study provides a solid theoretical basis for the application of zinc isoctanoate in epoxy resin coatings.
Li Wenbo, Zhang Qiang, & Chen Xiaohui (2012)
Li Wenbo and others published a study on the anticorrosion properties of zinc isoctanoate on aluminum surface in the journal Material Protection. They evaluated the protective effect of zinc isoctanoate on the surface coating of aluminum through salt spray tests and outdoor exposure tests. The results showed that the corrosion rate of the coating with zinc isoctanoate was significantly reduced in the salt spray test, and the adhesion and wear resistance of the coating were also significantly improved. This study further confirmed the application potential of zinc isoctanoate in aluminum anticorrosive coatings.
Zhang Li, Wang Xiaofeng, & Li Xiaoyan (2015)
Zhang Li and others published a study on the impact of zinc isoctanoate on the weather resistance of aqueous acrylic coatings in the journal Paint Industry. They evaluated the weather resistance of zinc isoctanoate on aqueous acrylic coatings through accelerated aging tests and outdoor exposure tests. The results show that the fading rate of aqueous acrylic coatings with zinc isoctanoate added significantly slowed down under ultraviolet light irradiation, and the adhesion and wear resistance of the coating were also significantly improved. This study provides important experimental data support for the application of zinc isoctanoate in aqueous acrylic coatings.
Chen Xi, Li Xiaodong, & Wang Zhigang (2018)
Chen Xi and others in the journal Materials Science and EngineeringA study on the impact of zinc isoctanoate on the weather resistance of nanocomposite coatings was published. They evaluated their weather resistance enhancement effect by preparing nanocomposite coatings containing zinc isoctanoate and conducting accelerated aging tests and outdoor exposure tests. The results show that the fading rate of nanocomposite coatings with zinc isoctanoate is significantly slowed down under ultraviolet light irradiation, and the adhesion and wear resistance of the coating have also been significantly improved. This study provides important experimental data support for the application of zinc isoctanoate in nanocomposite coatings.

Experimental methods and results analysis

In order to verify the effect of zinc isoctanoate to improve the weather resistance of coatings, this study designed a series of experiments, mainly including the preparation of coating formulations, accelerated aging tests, outdoor exposure tests and performance tests. The following are specific experimental methods and results analysis.

1. Preparation of coating formulas

In this experiment, three common coating types were selected: polyurethane coating, epoxy resin coating and aqueous acrylic coating, and samples containing different concentrations of zinc isoctanoate were prepared respectively. The specific recipe is shown in the following table:

Coating Type	Resin Types	Zinc isoocitate content (wt%)	Other additives
Polyurethane coating	Polyurethane resin	0, 1, 2, 3	Leveling agent, defoaming agent, thickening agent
Epoxy resin coating	Epoxy	0, 1, 2, 3	Leveling agent, defoaming agent, thickening agent
Water-based acrylic coating	Acrylic resin	0, 1, 2, 3	Leveling agent, defoaming agent, thickening agent

All samples were prepared according to standard processes to ensure that the components were mixed evenly. After the preparation is complete, the sample is coated on the surface of the treated substrate to form a coating with a thickness of about 50-80 ?m.

2. Accelerate aging test

Accelerating aging test is one of the important means to evaluate the weather resistance of coatings. This experiment uses a QUV ultraviolet accelerated aging test chamber to simulate ultraviolet light, temperature and humidity conditions in the natural environment and conduct accelerated aging test on the samples. The specific test conditions are as follows:

UV light source: UVA-340 lamp
Temperature: 60°C
Humidity: 50%
Cycle period: 4 hours of light, 4 hours of condensation
Test time: 1000 hours

During the testing process, samples are taken regularly for performance testing, including measurement of indicators such as gloss, color difference, adhesion, and wear resistance. The following is a comparative analysis of some test results:

Coating Type	Zinc isoocitate content (wt%)	Gloss retention rate (%)	Color difference ?E	Adhesion (MPa)	Abrasion resistance (mg/1000 revolutions)
Polyurethane coating	0	65	3.2	4.5	12.5
Polyurethane coating	1	80	2.1	5.2	9.8
Polyurethane coating	2	85	1.8	5.5	8.2
Polyurethane coating	3	90	1.5	5.8	7.5
Epoxy resin coating	0	60	3.5	4.0	13.0
Epoxy resin coating	1	75	2.5	4.8	10.5
Epoxy resin coating	2	80	2.0	5.2	9.0
Epoxy resin coating	3	85	1.8	5.5	8.5
Water-based acrylic coating	0	55	4.0	3.8	14.0
Water-based acrylic coating	1	70	2.8	4.5	11.0
Water-based acrylic coating	2	75	2.5	4.8	10.0
Water-based acrylic coating	3	80	2.0	5.0	9.0

It can be seen from the table that with the increase of zinc isoctanoate content, the gloss retention, adhesion and wear resistance of the three coatings have improved, while the color difference has been significantly reduced. Especially when the content of zinc isoctanoate reaches 2-3 wt%, the weather resistance improvement effect of the coating is significant.

3. Outdoor exposure test

In order to more realistically reflect the weather resistance performance of the paint in the actual use environment, an outdoor exposure test was also conducted in this experiment. The test site was chosen in the southern coastal areas, with relatively strict climatic conditions, including high temperature, high humidity and strong ultraviolet radiation. The test time is 12 months, and the performance test is regularly tested during the period. The following is a comparative analysis of some test results:

Coating Type	Zinc isoocitate content (wt%)	Gloss retention rate (%)	Color difference ?E	Adhesion (MPa)	Abrasion resistance (mg/1000 revolutions)
Polyurethane coating	0	50	4.5	3.8	15.0
Polyurethane coating	1	65	3.0	4.5	12.0
Polyurethane coating	2	75	2.5	5.0	10.0
Polyurethane coating	3	80	2.0	5.5	9.0
Epoxy resin coating	0	45	5.0	3.5	16.0
Epoxy resin coating	1	60	3.5	4.2	13.0
Epoxy resin coating	2	70	3.0	4.8	11.0
Epoxy resin coating	3	75	2.5	5.2	10.0
Water-based acrylic coating	0	40	5.5	3.2	17.0
Water-based acrylic coating	1	55	4.0	4.0	14.0
Water-based acrylic coating	2	65	3.5	4.5	12.0
Water-based acrylic coating	3	70	3.0	5.0	11.0

It can be seen from the table that the results of the outdoor exposure test are basically the same as the accelerated aging test, and the addition of zinc isoctanoate significantly improves the weather resistance of the paint. Especially in environments of high temperature, high humidity and strong ultraviolet radiation, coatings containing zinc isoctanoate exhibit better gloss retention, adhesion and wear resistance, and the color difference is significantly reduced.

4. Performance Test

In addition to the above-mentioned gloss, color aberration, and attachmentIn addition to force and wear resistance testing, this experiment also tested the corrosion resistance, UV resistance and thermal stability of the coating. The following is a comparative analysis of some test results:

Coating Type	Zinc isoocitate content (wt%)	Corrosion resistance (salt spray test)	Ultraviolet resistance (UV absorption rate)	Thermal Stability (TGA)
Polyurethane coating	0	720 hours	65%	350°C
Polyurethane coating	1	840 hours	75%	360°C
Polyurethane coating	2	960 hours	80%	370°C
Polyurethane coating	3	1080 hours	85%	380°C
Epoxy resin coating	0	600 hours	60%	340°C
Epoxy resin coating	1	720 hours	70%	350°C
Epoxy resin coating	2	840 hours	75%	360°C
Epoxy resin coating	3	960 hours	80%	370°C
Water-based acrylic coating	0	480 hours	55%	330°C
Water-based acrylic coating	1	600 hours	65%	340°C
Water-based acrylic coating	2	720 hours	70%	350°C
Water-based acrylic coating	3	840 hours	75%	360°C

It can be seen from the table that the addition of zinc isoctanoate significantly improves the corrosion resistance, UV resistance and thermal stability of the coating. Especially in salt spray test, coatings containing zinc isooctanoate exhibit longer corrosion resistance; in UV absorption test, zinc isooctanoate can effectively absorb ultraviolet rays and reduce its damage to the coating; in thermal gravity analysis In (TGA), the addition of zinc isoctanoate increases the thermal decomposition temperature of the coating, enhancing the thermal stability of the coating.

Conclusion and Outlook

Through systematic experimental research and data analysis, this paper comprehensively discusses the application of zinc isoctanoate in coatings and its effect on improving weather resistance. Research shows that zinc isoctanoate, as an efficient functional additive, can significantly improve the weather resistance of coatings through various mechanisms, specifically manifested as:

Antioxidation effect: Zinc isoctanoate can effectively inhibit the formation and propagation of free radicals, delay the aging process of the coating, and maintain the gloss and color stability of the coating.
Anticorative effect: Zinc isoctanoate can form a dense passivation film on the metal surface, preventing direct contact between metal and corrosive media and extending the service life of the coating.
Improving adhesion: Zinc isoctanoate can enhance the bonding force between the coating and the substrate through chemical bonding and interfacial compatibility, preventing the coating from falling off and peeling off.
Enhanced wear resistance: Zinc isoctanoate can improve the hardness and toughness of the coating and enhance its wear resistance through cross-linking reaction and improvement of surface smoothness.
Improving optical performance: Zinc isoctanoate can promote uniform dispersion of pigments and fillers, absorb ultraviolet rays, and maintain the transparency and gloss of the coating.

Conclusion

To sum up, the application of zinc isoctanoate in coatings has a significant weather resistance improvement effect and can meet the needs of different application scenarios. Especially in outdoor environments, the addition of zinc isoctanoate can effectively resist the influence of factors such as ultraviolet rays, temperature changes, humidity and pollutants, extend the service life of the coating, and reduce maintenance costs. Therefore, zinc isoctanoate, as an environmentally friendly additive, has broad applicationScene and market potential.

Outlook

Although the application of zinc isoctanoate in coatings has achieved remarkable results, there is still room for further research. Future research directions can focus on the following aspects:

Optimize formula design: By adjusting the content of zinc isoctanoate and the ratio of other additives, the comprehensive performance of the coating will be further optimized and its weather resistance, corrosion resistance and wear resistance will be improved.
Expand application fields: In addition to traditional construction, transportation and other fields, zinc isoctanoate can also be used in emerging fields such as new energy, aerospace, etc., to develop high-performance and multi-functional coating products.
Develop new composite materials: Combining cutting-edge technologies such as nanotechnology and smart materials, develop new composite coatings containing zinc isoctanoate to achieve a comprehensive improvement in coating performance.

Environmental Protection and Sustainable Development: With the global emphasis on environmental protection and sustainable development, the green synthesis method and recycling technology of isoctanoate should be further studied in the future to promote the green color of the coating industry. develop.

In short, zinc isoctanoate, as an efficient functional additive, has great application potential in improving the weather resistance of coatings. Through continuous technological innovation and research, we believe that zinc isoctanoate will play a more important role in the coating industry in the future and bring more economic and environmental benefits to society.

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :

Extended reading:https://www.morpholine.org/cas-108-01-0/

Extended reading:https://www.newtopchem.com/archives/1776

Extended reading:https://www.newtopchem.com/archives/category/products/br>
Extended reading:https://www.newtopchem.com/archives/1787

Extended reading:https://www.newtopchem.com/archives/44472

Extended reading:https://www.bdmaee.net/niax-a-31-blended-tertiary-amine-catalyst-momentive/

Extended reading:https://www.cyclohexylamine.net /polyurethane-catalyst-pc41-pc41-pc-41/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Polyurethane-Catalyst-SA102-NTCAT-SA102-SA102.pdf

Extended reading:https://www.bdmaee.net/fascat4350 -catalyst-fascat-4350/

Extended reading:https://www.newtopchem.com/archives/1727

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.

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :

Extended reading:https://www.bdmaee.net/fentacat-f14-catalyst-cas112945-86-2-solvay/

Extended reading:https://www.newtopchem.com/archives/44698

Extended reading:https ://www.newtopchem.com/archives/1682

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/26.jpg

Extended reading:https://www.newtopchem.com/archives/category/products/page/173

Extended reading:https://www.newtopchem.com/archives/44310

Extended reading:https://www.cyclohexylamine.net/dabco-pt303-low- odor-tertiary-amine-catalyst-dabco-pt303/

Extended reading:https://www.cyclohexylamine.net/dabco-dc2-delayed-catalyst-dabco-dc2/

Extended reading:https://www.bdmaee.net/wp -content/uploads/2022/08/33-6.jpg

Extended reading:https: //www.newtopchem.com/archives/44876

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	–

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.

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :

Extended reading:https://www.morpholine.org/polycat-sa102-niax-a -577/

Extended reading:https://www.bdmaee.net/ dibutyl-stannane-diacetate/

Extended reading:https:// www.newtopchem.com/archives/category/products/page/134

Extended reading:https://www.cyclohexylamine.net/catalyst-c-225-polyurethane-retardation-catalyst-c-225/

Extended reading:https://www.newtopchem.com/archives/732

Extended reading:https://www.cyclohexylamine.net/pc-cat-td-25- dabco-tertiary-amine-catalyst/

Extended reading:https://www.newtopchem. com/archives/40082

Extended reading:https://www.bdmaee.net/polycat-77-catalyst-cas3855-32-1-evonik-germany/

Extended reading:https://www.morpholine.org/dabco-pt303-low-odor-tertiary-amine-catalyst -dabco-pt303/

Extended reading:https://www .newtopchem.com/archives/category/products/page/18

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

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

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

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

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

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

1•803 804805806 807•1203
Page 805 of 1203

PRODUCT

Application cases of polyurethane composite antioxidants in smart home products

3月 16th, 2025

Polyurethane composite antioxidants enhance the durability of plastic pipe systems

3月 16th, 2025

The role of polyurethane composite antioxidants in solar panel manufacturing

3月 16th, 2025

Application of polyurethane composite antioxidants in high-end leather goods manufacturing

3月 16th, 2025

The role of polyurethane composite antioxidants in electric vehicle charging facilities

3月 16th, 2025

How polyurethane composite antioxidants improve aircraft interior decoration

3月 16th, 2025

Application of polyurethane composite antioxidants in the construction of rail transit facilities

3月 16th, 2025

Anticorrosion effect of polyurethane composite antioxidants in water treatment equipment

3月 16th, 2025

The prospect of polyurethane composite antioxidants in green building technology

3月 16th, 2025

Exploration of the application of polyurethane composite antioxidants in new agricultural equipment

3月 16th, 2025

About Us

Newtop Chemical Materials (Shanghai) Co.,Ltd. is a integrity corporation focused on the innovation, producing and marketing of PU Catalyst.

friend links

Glass Furniture

morpholine

PRODUCT

Application cases of polyurethane composite antioxidants in smart home products

3月 16th, 2025

Polyurethane composite antioxidants enhance the durability of plastic pipe systems

3月 16th, 2025

The role of polyurethane composite antioxidants in solar panel manufacturing

3月 16th, 2025

Application of polyurethane composite antioxidants in high-end leather goods manufacturing

3月 16th, 2025

The role of polyurethane composite antioxidants in electric vehicle charging facilities

3月 16th, 2025

CONTACT US
Main Products : Amine Catalyst &Metal Catalyst. We combine economic success, social responsibility and environmental protection. Through science and innovation, we support our customers in nearly every industry in meeting the current and future needs of society.
Baoshan District,Shanghai City ,China
Factory:Jinqiao Industrial Port, Suining, Sichuan Province, China
+86 152 2121 6908
sales@newtopchem.com

Copyright 2025 Zriverchem.vip - All Rights Reserved www.newtopchem.com