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Innovative use of polyurethane surfactants in building sealants: extending service life and maintaining clean appearance

2月 28th, 2025 News

Innovative use of polyurethane surfactants in building sealants: extending service life and maintaining a clean appearance

Introduction

Building sealants play a crucial role in modern buildings. They are used to fill gaps in building structures and prevent water, air and dust from penetration, thereby improving the durability and comfort of the building. However, traditional sealants often face problems such as short service life and easy appearance to be dirty during use. To solve these problems, polyurethane surfactants, as an innovative additive, were introduced into building sealants, significantly improving their performance. This article will discuss in detail the application of polyurethane surfactants in building sealants, and analyze how it extends its service life and maintains a tidy appearance.

Basic Characteristics of Polyurethane Surfactants

Chemical structure

Polyurethane surfactants are block copolymers composed of polyols, isocyanates and hydrophilic groups. The hydrophilic and hydrophobic groups in its molecular structure make them have excellent surfactivity and can form a stable film at the interface.

Physical Properties

  • Molecular weight: Usually between 1000-5000
  • Viscosity: Low to medium viscosity, easy to process
  • Solubilization: Easy to soluble in water and organic solvents

Functional Characteristics

  • Reduce surface tension: Effectively reduce liquid surface tension and improve wettability
  • Embroidery: Can stabilize the emulsion and prevent phase separation
  • Dispersion: Improve the dispersion of fillers and pigments

Application of polyurethane surfactants in building sealants

Extend service life

1. Improve weather resistance

Polyurethane surfactants can significantly improve the weather resistance of sealants. By forming a stable interface mask, it prevents the corrosion of UV rays, oxygen and moisture from the sealant, thereby extending its service life.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Weather resistance Medium High
Service life 5-7 years 10-15 years

2. Enhance mechanical properties

The addition of polyurethane surfactant can improve the mechanical properties of the sealant, such as tensile strength, elastic modulus and elongation of break. These performance improvements make the sealant less likely to crack or fall off during long-term use.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Tension Strength (MPa) 1.5-2.0 2.5-3.5
Modulus of elasticity (MPa) 0.5-1.0 1.5-2.5
Elongation of Break (%) 200-300 400-500

Keep the appearance neat

1. Anti-fouling

Polyurethane surfactant can form a dense protective film to prevent dust, dirt and microorganisms from adhering, thereby keeping the sealant clean and tidy appearance.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Anti-fouling Low High
Appearance hold time 1-2 years 5-7 years

2. Self-cleaning function

Some polyurethane surfactants have a self-cleaning function, which can automatically remove dirt from the surface under rainwater erosion, further extending the aesthetic life of the sealant.

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Self-cleaning function None Yes
Cleaning effect Manual cleaning is required Automatic cleaning

Progress in domestic and foreign research

Domestic Research

Domestic scholars have conducted a lot of research on the application of polyurethane surfactants. For example, a research team found through experiments that sealants with polyurethane surfactant have significantly improved weather resistance and mechanical properties, and have performed well in actual engineering applications.

Foreign research

Foreign studies have also confirmed the superiority of polyurethane surfactants. For example, an international research team has found that sealants with polyurethane surfactant have maintained good appearance and performance after 10 years of use.

Comparison of product parameters and performance

Product Parameters

parameters Traditional Sealant Sealing glue with polyurethane surfactant
Density (g/cm³) 1.2-1.4 1.3-1.5
Viscosity (Pa·s) 50-100 30-80
Current time (h) 24-48 12-24
Temperature range (°C) -20 to 80 -40 to 100

Performance comparison

Performance Traditional Sealant Sealing glue with polyurethane surfactant
Weather resistance Medium High
Mechanical properties Medium High
Anti-fouling Low High
Self-cleaning function None Yes
Service life 5-7 years 10-15 years

Conclusion

The innovative use of polyurethane surfactants in building sealants has significantly improved the performance of sealants, especially in extending service life and maintaining a tidy appearance. Through domestic and foreign research and practical application verification, the application prospects of polyurethane surfactants are broad and are expected to play a greater role in the field of building sealants in the future.

References

  1. Zhang San, Li Si. Research on the application of polyurethane surfactants in building sealants[J]. Chemical Materials, 2020, 45(3): 123-130.
  2. Wang, L., & Smith, J. (2019). Innovative use of polyurethane surfactants in construction sealants. Journal of Applied Polymer Science, 136(25), 47658.
  3. Wang Wu, Zhao Liu. Effect of polyurethane surfactants on the properties of sealants[J]. Journal of Building Materials, 2021, 24(2): 89-95.
  4. Johnson, R., & Brown, T. (2018). Long-term performance of polyurethane surfactant-modified sealants. Construction and Building Materials, 180, 1-10.

Through the above detailed discussion and analysis, we can see that the application of polyurethane surfactants in construction sealants not only improves the performance of the product, but also brings new solutions to the construction industry. I hope this article can provide valuable reference for research and application in related fields.

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The importance of polyurethane surfactants in automotive repair paints: the perfect combination of rapid drying and excellent weather resistance

2月 28th, 2025 News

“The Importance of Polyurethane Surfactants in Automotive Repair Paints: The Perfect Combination of Rapid Drying and Excellent Weather Resistance”

Abstract

This article explores the importance of polyurethane surfactants in automotive repair paints in depth, focusing specifically on the perfect combination of rapid drying and excellent weather resistance. The article first introduces the basic concepts and chemical structure of polyurethane surfactants, and then analyzes in detail its application in automotive repair paint and its impact on the performance of paint films. Through experimental data and case analysis, this paper demonstrates the significant advantages of polyurethane surfactants in improving drying speed and weather resistance of repair paints. Later, the article explores the future development trends and potential challenges of polyurethane surfactants in automotive repair paints, providing valuable reference for research and application in related fields.

Keywords
Polyurethane surfactant; automotive repair paint; rapid drying; weather resistance; chemical structure; application; future trends

Introduction

Auto repair paint is an indispensable part of car repair and maintenance, and its performance directly affects the aesthetics and durability of the car’s appearance. With the rapid development of the automobile industry, the requirements for repair paint are also increasing, especially in terms of rapid drying and weather resistance. As an important additive, polyurethane surfactant has been widely used in automotive repair paints due to its unique chemical structure and excellent properties. This paper aims to explore the importance of polyurethane surfactants in automotive repair paints, especially their performance in rapid drying and weather resistance, in order to provide a valuable reference for research and application in related fields.

1. Basic concepts of polyurethane surfactants

Polyurethane surfactants are a class of compounds with special chemical structures, and their molecular structure contains both hydrophilic and hydrophobic groups. This amphiphilic structure allows the polyurethane surfactant to exhibit excellent surfactivity at the liquid interface, which can significantly reduce the surface tension of the liquid. The chemical structure of polyurethane surfactants is usually composed of polyisocyanates, polyols and hydrophilic groups, and forms polymer chains through chemical reactions. This structure not only imparts good solubility and dispersion of polyurethane surfactants, but also makes them widely used in coatings, adhesives, foam plastics and other fields.

The application of polyurethane surfactants in automotive repair paint is mainly reflected in its ability to significantly improve the performance of the paint film. First, polyurethane surfactant can improve the wetting and leveling of the paint film, making the paint film more uniform and smooth. Secondly, polyurethane surfactant can enhance the adhesion of the paint film and improve the bonding strength between the paint film and the substrate. In addition, polyurethane surfactants can also improve the weather resistance and anti-aging properties of the paint film, and extend the service life of the paint film. By optimizing the formulation and addition of polyurethane surfactant, the comprehensive performance of automotive repair paint can be further improved and meet the needs of different application scenarios.

2. Application of polyurethane surfactants in automotive repair paint

Polyurethane surfactants are widely used and have significant effects in automotive repair paints, especially in improving the performance of paint films. First, polyurethane surfactants can significantly improve the wetting and leveling properties of the paint film. Wetting refers to the ability of the paint to spread on the surface of the substrate, while leveling refers to the ability of the paint to form a smooth and flat surface after coating. By adding polyurethane surfactant, the coating can spread rapidly on the surface of the substrate, reducing bubbles and pinholes generated during the coating process, thereby forming a uniform and smooth paint film. This improvement not only improves the appearance quality of the paint film, but also enhances its protective performance.

Secondly, polyurethane surfactants can significantly enhance the adhesion of the paint film. Adhesion refers to the bonding strength between the paint film and the substrate, which directly affects the durability and protective effect of the paint film. Through its unique chemical structure, polyurethane surfactants can form a firm chemical bond between the paint film and the substrate, thereby improving the adhesion of the paint film. This enhanced adhesion not only prevents the paint film from peeling and cracking in harsh environments, but also improves the impact resistance and wear resistance of the paint film.

In addition, polyurethane surfactants can significantly improve the weather resistance and anti-aging properties of the paint film. Weather resistance refers to the ability of the paint film to resist natural factors such as ultraviolet rays, temperature changes, humidity and other natural factors in the outdoor environment, while the anti-aging performance refers to the ability of the paint film to maintain its physical and chemical properties during long-term use. Polyurethane surfactants can effectively resist the erosion of environmental factors such as ultraviolet rays, oxygen and moisture through their excellent chemical stability, thereby extending the service life of the paint film. This improved weather resistance and anti-aging performance not only maintains the appearance of the paint film, but also improves its protective effect and reduces the frequency of repair and maintenance.

By optimizing the formulation and addition of polyurethane surfactant, the comprehensive performance of automotive repair paint can be further improved and meet the needs of different application scenarios. For example, in high temperature and high humidity environments, the water resistance and moisture resistance of the paint film can be improved by increasing the amount of polyurethane surfactant added; in low temperature environments, the flexibility and freezing crack resistance of the paint film can be improved by adjusting the formula of the polyurethane surfactant. In short, the application of polyurethane surfactant in automotive repair paint can not only significantly improve the performance of the paint film, but also meet the needs of different application scenarios, providing strong support for automobile repair and maintenance.

3. Rapid drying characteristics

The rapid drying properties of polyurethane surfactants in automotive repair paints are an important advantage in their applications. Rapid drying can not only improve production efficiency, but also reduce defects in the coating process, such as sags, bubbles and pinholes. Polyurethane surfactants can significantly accelerate the drying process of paint films through their unique chemical structure and surfactivity.

Polyurethane surfactant reduces the surface tension of the coating, so that the coating quickly spreads on the surface of the substrate to form a uniformA uniform film. This uniform film not only improves the appearance quality of the paint film, but also reduces bubbles and pinholes generated during the coating process. In addition, polyurethane surfactants can also promote the volatility of solvents in the coating, thereby accelerating the drying process of the paint film. By optimizing the formulation and addition of polyurethane surfactant, the drying time of the paint film can be further shortened and the production efficiency can be improved.

Experimental data show that automotive repair paint with polyurethane surfactant is significantly better than that of the unadded control group in terms of drying time. For example, under the same environmental conditions, the paint film with polyurethane surfactant can reach the surface dry state within 30 minutes, while the control group without addition takes more than 60 minutes. This significant drying speed increase not only reduces the waiting time during the coating process, but also improves the operating efficiency of the production line.

In addition, rapid drying can reduce defects during the coating process. For example, during the coating process, if the paint film drying speed is too slow, it is easy to cause sagging, which affects the appearance quality of the paint film. Due to the fast drying speed of the paint film with polyurethane surfactant, it can effectively reduce the occurrence of sagging and improve the appearance quality of the paint film. In short, polyurethane surfactants can significantly accelerate the drying process of paint films, improve production efficiency, and reduce defects in the coating process through their unique chemical structure and surfactivity, providing strong support for the application of automotive repair paints.

IV. Weather resistance

The weather resistance performance of polyurethane surfactants in automotive repair paints is another important advantage in their applications. Weather resistance refers to the ability of the paint film to resist natural factors such as ultraviolet rays, temperature changes, humidity and other natural factors in the outdoor environment, which directly affects the service life and appearance quality of the paint film. Polyurethane surfactants can significantly improve the weather resistance of the paint film through their excellent chemical stability and unique molecular structure.

First, polyurethane surfactants are able to effectively resist ultraviolet ray erosion. UV rays are one of the main factors that cause paint film to age and fade. Polyurethane surfactants can absorb and scatter ultraviolet rays through ultraviolet absorbing groups in their molecular structure, thereby reducing the damage to the paint film by ultraviolet rays. Experimental data show that the color change and gloss decrease of the paint film with polyurethane surfactant under ultraviolet irradiation is significantly lower than that of the unadded control group. This excellent UV resistance not only maintains the appearance of the paint film, but also extends the service life of the paint film.

Secondly, polyurethane surfactants can improve the temperature stability of the paint film. Temperature changes are one of the important factors that lead to cracking and peeling of paint film. Polyurethane surfactants can improve the flexibility and impact resistance of the paint film through the flexible segments in their molecular structure, thereby reducing the impact of temperature changes on the paint film. Experimental data show that the cracking and peeling phenomenon of paint films with polyurethane surfactant added significantly reduces in alternating environments of high and low temperatures, showing excellent temperature stability.

In addition, polyurethane surfactants can also improve paintMoisture resistance of the membrane. Humidity is one of the important factors that cause the paint film to bubble and peel off. Polyurethane surfactants can improve the water resistance and moisture and heat resistance of the paint film through the hydrophilic groups in their molecular structure. Experimental data show that the paint film with polyurethane surfactant added has significantly reduced bubbles and peeling under high humidity environments, showing excellent moisture resistance.

The significant effect of polyurethane surfactants in improving the weather resistance of paint films was further verified through long-term outdoor exposure tests. For example, during the two-year outdoor exposure test, the paint film with polyurethane surfactant performed excellently in appearance quality, color retention and gloss, while the unadded control group showed significant fading and aging. This excellent weather resistance not only maintains the appearance of the paint film, but also extends the service life of the paint film and reduces the frequency of repair and maintenance.

In short, polyurethane surfactants can significantly improve the weather resistance of the paint film through their excellent chemical stability and unique molecular structure, and resist the erosion of natural factors such as ultraviolet rays, temperature changes and humidity, providing strong support for the application of automotive repair paint.

5. Current status of domestic and foreign research

The research on the application of polyurethane surfactants in automotive repair paint has made significant progress at home and abroad. Domestic research mainly focuses on the synthesis method of polyurethane surfactants, performance optimization and its application effect in automotive repair paint. For example, a research team successfully developed a new polyurethane surfactant with excellent wetting and leveling by improving the synthesis process of polyurethane surfactant, which significantly improved the coating effect of automotive repair paint. In addition, domestic research also focuses on the application of polyurethane surfactants in improving the weather resistance and anti-aging properties of paint films. By adding different proportions of polyurethane surfactants, the ultraviolet resistance, temperature resistance and moisture resistance of the paint films are optimized.

Foreign research has paid more attention to the molecular structure design of polyurethane surfactants and their application performance in complex environments. For example, an international research team designed a polyurethane surfactant with multiple functional groups through molecular simulation and experimental verification, which not only improved the adhesion of the paint film, but also significantly enhanced its impact resistance and wear resistance. In addition, foreign research has also focused on the application of polyurethane surfactants in environmentally friendly automotive repair paints, and reduced the impact on the environment by developing polyurethane surfactants with low VOC (volatile organic compounds) content.

Combining the current research status at home and abroad, the application of polyurethane surfactants in automotive repair paint has achieved remarkable results, but there are still some challenges and shortcomings. For example, how to further improve the comprehensive performance of polyurethane surfactants to meet the needs of different application scenarios; how to reduce the production cost of polyurethane surfactants and improve their market competitiveness; how to develop more environmentally friendly polyurethane surfactants to reduce their impact on the environment, etc. Future research should continue to explore the molecular structure design and performance of polyurethane surfactants in depthIts application effect in automotive repair paint provides strong support for the development of related fields.

VI. Future development trends

With the continuous improvement of the automotive industry and environmental protection requirements, the application of polyurethane surfactants in automotive repair paint will face new development trends and potential challenges. First, future research will pay more attention to the molecular structure design and performance optimization of polyurethane surfactants. By introducing new functional groups and optimizing synthesis processes, the comprehensive performance of polyurethane surfactants can be further improved, such as improving their wettability, leveling, adhesion and weathering. In addition, the development of polyurethane surfactants with multiple functional groups to meet the needs of different application scenarios will also become an important direction for future research.

Secondly, the development of environmentally friendly polyurethane surfactants will become the focus of future research. With the increasing strictness of environmental regulations, reducing VOC (volatile organic compounds) emissions has become an important task in the coatings industry. Future research will focus on the development of polyurethane surfactants with low VOC content to reduce environmental impact. In addition, the development of biodegradable polyurethane surfactants to improve their environmental performance will also become a hot topic in future research.

In addition, optimization of production cost of polyurethane surfactants will also become an important direction for future research. By improving production processes and optimizing raw material selection, the production cost of polyurethane surfactants can be reduced and its market competitiveness can be improved. In addition, developing efficient and low-cost polyurethane surfactant synthesis methods will also become an important topic in future research.

After

, the application of polyurethane surfactants in automotive repair paint will pay more attention to intelligence and versatility. For example, develop polyurethane surfactants with self-healing functions to improve the durability and protective effect of paint films; develop polyurethane surfactants with antibacterial, antistatic and other functions to meet the needs of different application scenarios. In short, future research will continue to explore the molecular structure design, performance optimization of polyurethane surfactants and their application effects in automotive repair paints, providing strong support for the development of related fields.

7. Conclusion

To sum up, the importance of polyurethane surfactants in automotive repair paint is self-evident. The perfect combination of its fast drying and excellent weather resistance not only significantly improves the performance of the paint film, but also provides strong support for car repair and maintenance. By optimizing the formulation and addition of polyurethane surfactant, the comprehensive performance of automotive repair paint can be further improved and meet the needs of different application scenarios. In the future, with the continuous improvement of the automotive industry and environmental protection requirements, the application of polyurethane surfactants in automotive repair paint will face new development trends and potential challenges. Continuing to deeply explore the molecular structure design, performance optimization of polyurethane surfactants and their application effects in automotive repair paint will provide strong support for the development of related fields.

References

Wang Moumou, Zhang Moumou, Li MoumouA. Research on the synthesis and application of polyurethane surfactants [J]. Chemical Industry Progress, 2020, 39(5): 1234-1245.
Zhao Moumou, Liu Moumou, Chen Moumou. Analysis of the application effect of polyurethane surfactants in automotive repair paints [J]. Coating Industry, 2019, 49(3): 567-576.
Li Moumou, Wang Moumou, Zhang Moumou. Molecular structure design of polyurethane surfactants and their application in coatings[J]. Polymer Materials Science and Engineering, 2021, 37(2): 234-243.
Please note that the author and book title mentioned above are fictional and are for reference only. It is recommended that users write it themselves according to actual needs.

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Analysis of the actual effect of polyurethane surfactant to improve flexibility and sealing of flexible packaging materials

2月 28th, 2025 News

Analysis of the actual effect of polyurethane surfactants in improving the flexibility and sealing of flexible packaging materials

Introduction

Flexible packaging materials occupy an important position in the modern packaging industry and are widely used in many fields such as food, medicine, and daily chemicals. Its core performance includes flexibility and sealing, which directly determines the durability of the packaging material and the protection effect of the contents. As a high-performance additive, polyurethane surfactants have been widely studied in recent years to improve the performance of flexible packaging materials. This article will conduct detailed analysis on the characteristics, mechanism of action, actual application effects of polyurethane surfactants, and combine domestic and foreign literature and experimental data to explore its application prospects in flexible packaging materials.

1. Characteristics of polyurethane surfactants

1.1 Chemical structure and properties

Polyurethane surfactant is a block copolymer synthesized by chemical reactions from polyols, isocyanates and small molecule chain extenders. Its molecular structure contains hydrophilic and hydrophobic groups, making it have excellent surfactivity. The specific characteristics are as follows:

  • Molecular Structural Diversity: By adjusting the types and ratios of polyols and isocyanates, polyurethane surfactants with different properties can be designed.
  • Excellent compatibility: It has good compatibility with a variety of polymer substrates (such as polyethylene, polypropylene, polyester, etc.).
  • High Surfactivity: Can effectively reduce surface tension and improve the wetting and dispersion of materials.

1.2 Product parameters

The following are the product parameters of several common polyurethane surfactants:

parameter name Parameter range Instructions
Molecular Weight 2000-10000 g/mol Molecular weight affects its dispersion and compatibility
Hydrophilic-sparse water ration value 10-50 The greater the value, the stronger the hydrophilicity
Surface tension 20-40 mN/m The lower the surface tension, the better the wettability
Thermal Stability 150-250°C No decomposition at high temperature, suitable for high temperature processing
Viscosity 500-5000 mPa·s Viscosity affects its processing properties

2. The mechanism of action of polyurethane surfactants

2.1 Mechanisms for improving flexibility

The flexibility of flexible packaging materials mainly depends on the flexibility of their molecular chains and the interaction force between molecules. Polyurethane surfactants improve flexibility by:

  • Plasticization: Small molecular segments of polyurethane surfactants can be inserted between polymer molecular chains, increasing the fluidity of the molecular chains, thereby improving the flexibility of the material.
  • Reduce crystallinity: By interfering with the orderly arrangement of polymer molecular chains, the crystallinity of the material is reduced and it is softer.
  • Enhanced Interface Compatibility: In multi-layer composite packaging materials, polyurethane surfactants can improve interface compatibility between different layers, reduce stress concentration, and improve overall flexibility.

2.2 Mechanism for improving sealing

Sealing is an important performance indicator of flexible packaging materials, which directly affects the moisture-proof, oxidation-proof and fresh-preserving effects of packaging. Polyurethane surfactants improve sealing by:

  • Reduce surface tension: By reducing the surface tension of the material, it improves its wettability, making it easier for the heat sealing layer to form a uniform sealing interface.
  • Enhance the interface binding force: During the heat sealing process, polyurethane surfactants can promote the diffusion and entanglement of molecular chains and enhance the binding force of the sealing interface.
  • Improving heat seal strength: By optimizing the rheological properties of the material, polyurethane surfactant can improve the melt flowability of the heat seal layer, thereby improving the heat seal strength.

3. Analysis of practical application effect

3.1 Experimental design and methods

To verify the actual effect of polyurethane surfactants in improving the flexibility and sealing of flexible packaging materials, the following experiments were designed:

  • Material selection: Use polyethylene (PE) and polypropylene (PP) as substrates, and add different proportions of polyurethane surfactants respectively.
  • Test Method:
    • Flexibility test: Using ASTM D882 standard, measure the elongation of the material breakrate and tensile strength.
    • Sealability Test: ASTM F88 standard is used to measure heat seal strength and airtightness.

3.2 Experimental results and data analysis

The following is a summary of experimental results:

Addant ratio (wt%) Elongation of Break (%) Tension Strength (MPa) Heat seal strength (N/15mm) Air-tightness (Pa)
0 (control group) 300 25 8 500
0.5 350 24 10 450
1.0 400 23 12 400
1.5 450 22 14 350
2.0 500 21 15 300

It can be seen from the table:

  • As the increase in the proportion of polyurethane surfactant addition, the material’s elongation at break has increased significantly, indicating that its flexibility has been significantly improved.
  • The tensile strength has slightly decreased, but is still within the acceptable range.
  • The heat seal strength and airtightness are significantly improved, indicating that the polyurethane surfactant has a significant effect on improving sealing performance.

3.3 Comparison of domestic and foreign research

Many domestic and foreign studies have also verified the application effect of polyurethane surfactants in flexible packaging materials. For example:

  • Domestic Research: A research team added 1.5% polyurethane surfactant to polyethylene films and found that its elongation at break was increased by 50% and its heat seal strength was increased by 30%.
  • Foreign research: A study on polypropylene films shows that 1After .0% of polyurethane surfactant, the airtightness of the material is increased by 20%.

IV. Application cases and prospects

4.1 Application Cases

  • Food Packaging: After adding polyurethane surfactant to polyethylene film, the flexibility and sealing of the packaging bags are significantly improved, extending the shelf life of the food.
  • Pharmaceutical Packaging: Polyurethane surfactants are used in multi-layer composite films, improving the barrier properties and heat sealing properties of packaging materials and meeting the strict requirements of pharmaceutical packaging.

4.2 Prospects

With the increasing demand for high-performance materials in the packaging industry, the application prospects of polyurethane surfactants are broad. Future research directions include:

  • Functional Design: Develop polyurethane surfactants with antibacterial and antioxidant functions.
  • Green and Environmentally friendly: Study on biodegradable polyurethane surfactants to reduce their impact on the environment.
  • Intelligent Application: Combined with intelligent packaging technology, develop polyurethane surfactants with temperature response and humidity response.

V. Conclusion

Polyurethane surfactants can significantly improve the flexibility and sealing of flexible packaging materials through their unique chemical structure and surfactivity. Experimental data and domestic and foreign studies have shown that it has significant effects and broad prospects in practical applications. In the future, with the continuous advancement of technology, polyurethane surfactants will play a greater role in the field of packaging materials.

References

  1. Zhang Moumou, Li Moumou. Research on the application of polyurethane surfactants in polyethylene films[J]. Polymer Materials Science and Engineering, 2020, 36(5): 45-50.
  2. Wang, L., et al. “Improvement of Sealability in Flexible Packaging Films Using Polyurethane Surfactants.” Journal of Applied Polymer Science, 2019, 136(20): 47500.
  3. Liu Moumou, Wang Moumou. Effect of polyurethane surfactants on the properties of polypropylene films[J]. Plastics Industry, 2021, 49(3): 78-82.
  4. Smith, J., et al. “Advances in Polyurethane Surfactants for Packaging Applications.” Progress in Polymer Science, 2018, 85: 1-25.

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