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How to improve the color stability of building materials by polyurethane TPE anti-yellowing agent

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: a secret weapon to make building materials evergreen in color

In the construction industry, the color stability of materials is as important as the quality of a piece of clothing. Just imagine, how would you feel if you bought a new shirt and faded after washing it a few times? Similarly, if building materials cannot maintain their original color, they will not only affect their beauty, but may also reduce their functionality. Polyurethane TPE anti-yellowing agent is the key to solving this problem.

What is polyurethane TPE anti-yellowing agent?

Polyurethane TPE (Thermoplastic Elastomer) anti-yellowing agent is an additive specially designed to improve the weather resistance and color stability of polyurethane materials. It is like the “sunscreen” of building materials, which can effectively prevent material aging and color changes caused by external factors such as ultraviolet rays, oxygen, and moisture.

The working principle of anti-yellowing agent

Anti-yellowing agents mainly play a role through the following mechanisms:

  1. Absorb UV light: Some anti-yellowing agents can absorb UV light and convert it into heat energy to release, thereby reducing the damage to the material’s molecular structure by ultraviolet light.
  2. Scavenge free radicals: UV exposure can cause free radicals to be produced inside the material, which can cause the material to degrade and discolor. Anti-yellowing agents can delay the aging process of the material by capturing these free radicals.
  3. Antioxidation: During material processing and use, oxidation reactions may lead to yellowing. Anti-yellowing agents help maintain the original color of the material by providing antioxidant functions.

Application field of polyurethane TPE anti-yellowing agent

Polyurethane TPE anti-yellowing agents are widely used in a variety of building materials, including but not limited to:

  • Exterior Paint: Keep the building’s appearance fresh
  • Roof Tiles: Enhance weather resistance and extend service life
  • Flooring Materials: Ensure the interior decoration is long-lasting and beautiful
  • Waterproof Materials: Improve the reliability of long-term use

Product parameters and performance indicators

In order to better understand the role of polyurethane TPE anti-yellowing agent, we can explain it through specific parameters and performance indicators. The following table lists the key parameters of a typical product:

parameter name Unit Typical
Appearance – White Powder
Density g/cm³ 1.05
Melting point °C 95-105
UV resistance efficiency % ?90
Thermal Stability °C ?200
Solution – Insoluble in water

Methods to improve the color stability of building materials

The use of polyurethane TPE anti-yellowing agent is one of the important means to improve the color stability of building materials. In addition, the following measures can be taken:

  • Select the right raw material: High-quality basic materials have good weather resistance.
  • Optimize production process: For example, control processing temperature and time to avoid the early aging of materials during long-term treatment at high temperatures.
  • Surface treatment: If coating protective layers or special surface treatment, add additional protection.

Progress in domestic and foreign research

In recent years, significant progress has been made in the research on polyurethane TPE anti-yellowing agents. Some foreign studies have shown that new anti-yellowing agents can not only effectively prevent yellowing, but also improve the overall physical properties of the material. For example, a study in the United States found that adding a specific proportion of anti-yellowing agents can increase the tensile strength of polyurethane materials by about 20%.

In China, scientific researchers have also developed a variety of high-efficiency anti-yellowing agents and have been successfully applied to actual engineering projects. An experiment from the Institute of Chemistry, Chinese Academy of Sciences showed that after using the anti-yellowing agent they developed, the color change of polyurethane materials after one year of exposure to the sun outdoors was only one-third of the untreated samples.

Conclusion

In short, polyurethane TPE anti-yellowing agent plays an indispensable role in maintaining the color stability of building materials. It not only extends the service life of the material, but also adds a lasting charm to the building. As the old saying goes, “People rely on clothes, and Buddha rely on gold.” For building materials, good color stability is their goodness.”coat”. I hope that with the advancement of technology, the future anti-yellowing technology will become more mature and make our architectural world more colorful.

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Polyurethane TPE anti-yellowing agent improves the quality standards of clothing accessories

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: the key to improving the quality of clothing accessories

In today’s era of “appearance is justice”, whether it is people or objects, appearance has become an important criterion for judging value. For the clothing industry, the color, luster and durability of a piece of clothing directly determine its market competitiveness. As an indispensable part of the overall design of clothing, the quality of clothing accessories (such as buttons, zippers, labels, etc.) directly affects the visual effect and service life of the entire clothing. However, during actual use, many auxiliary materials will have headaches – yellowing.

The so-called yellowing refers to the color change of the material under the action of light, high temperature or chemical environment. This phenomenon not only destroys the aesthetics of the product, but may also affect its functionality. Especially among auxiliary materials made of polymer materials such as polyurethane (PU) and thermoplastic elastomer (TPE), the problem of yellowing is particularly prominent. In order to solve this problem, anti-yellowing agents emerged and became one of the key technologies to improve the quality of clothing accessories.

This article will start from the basic principles of polyurethane TPE anti-yellowing agent, and deeply explore its application advantages in clothing accessories. Through comparative analysis of relevant domestic and foreign studies, combined with specific product parameters and experimental data, we will comprehensively analyze how to use anti-yellowing agents to improve the overall quality of clothing accessories. At the same time, the article will also use easy-to-understand language and vivid and interesting metaphors to help readers better understand this complex technical field.

1. What is polyurethane TPE anti-yellowing agent?

To understand the mechanism of action of anti-yellowing agents, we first need to clarify the basic characteristics of two materials: polyurethane (PU) and thermoplastic elastomer (TPE). Polyurethane is a polymer compound produced by the reaction of isocyanate and polyols, with excellent wear resistance, flexibility and elasticity; while TPE is a type of material that combines rubber elasticity and plastic processability, and is widely used in the manufacturing of clothing auxiliary materials. However, when these two materials are exposed to ultraviolet rays, oxygen or high temperature environments for a long time, they are prone to oxidation and degradation, resulting in changes in molecular structure, which leads to yellowing.

The function of anti-yellowing agents is to inhibit or delay the occurrence of this oxidation process. It is like a loyal “guard”, always guarding the molecular structure of the material and preventing external factors from causing harm to it. Specifically, anti-yellowing agents mainly work in the following two ways:

  1. Absorb UV rays: Some anti-yellowing agents can absorb UV energy and convert it into harmless heat energy to release it, thereby avoiding the damage of ultraviolet rays to the material’s molecular bonds.
  2. Catch Free Radicals: Other anti-yellowing agents can capture free radicals produced by oxidation reactions, preventing them from further triggering chain reactions, thereby protecting the material from deep damage.

Currently, the common polyurethane TPE anti-yellowing agents on the market mainly include UV stabilizers, antioxidants and composite anti-yellowing agents. These products are widely used in the production of various clothing accessories according to their functional characteristics and scope of application.

2. Classification and characteristics of anti-yellowing agents

To have a clearer understanding of the different types of anti-yellowing agents and their properties, we can divide them into the following categories:

1. UV light stabilizer

UV light stabilizers are “sunscreen” in the anti-yellowing agent family. Their main task is to absorb UV light and convert it into heat energy to release, thereby reducing the damage to the material by UV light. Such stabilizers usually include benzotriazole, salicylate and benzophenone.

Category Features Scope of application
Benzotriazoles High absorption efficiency and strong stability High-end clothing accessories, such as high-end buttons and zippers
Salicylate Low cost, but slightly less weathering Ordinary clothing accessories, such as ordinary zippers and labels
Benzophenone Strong light absorption capacity, but easy to precipitate Products that are insensitive to precipitation, such as some webbing

2. Antioxidants

If the UV stabilizer is a “sunscreen”, then the antioxidant is a “vitamin E”. They interrupt the oxidation reaction chain by capturing free radicals, thus effectively delaying the aging process of the material. According to the different chemical structures, antioxidants can be divided into two categories: phenolic antioxidants and amine antioxidants.

Category Features Scope of application
Phenol antioxidants High safety and not easy to contaminate Extras for direct contact with the skin, such as buttons and labels
Amine antioxidants The effect is significant, but it may cause pollution Extras that do not directly contact the skin, such as packaging materials

3. Complex anti-yellowing agent

Compound anti-yellowing agent is the “mixed-blood” of the above two types of anti-yellowing agents. They provide a more comprehensive protection by combining the advantages of UV light stabilizers and antioxidants. For example, some composite anti-yellowing agents can absorb ultraviolet rays while effectively capturing free radicals, making them a “all-round player” in the field of anti-yellowing.

Category Features Scope of application
Composite Excellent comprehensive performance and wide application scope High-end custom clothing accessories, such as brand logos and decorations

III. Application advantages of polyurethane TPE anti-yellowing agent

The reason why polyurethane TPE anti-yellowing agent can occupy an important position in the clothing auxiliary material industry is closely related to its unique advantages. The following are detailed analysis of several key aspects:

1. Improve the weather resistance of auxiliary materials

Weather resistance is one of the important indicators for measuring the quality of clothing accessories. During actual use, auxiliary materials will inevitably be affected by sunlight, rainwater and temperature changes. The addition of anti-yellowing agent can significantly enhance the weather resistance of the auxiliary materials, so that they still maintain their original color and texture in harsh environments. This is like putting a layer of “bulletproof vest” on the auxiliary materials, allowing it to deal with various challenges calmly.

2. Extend product life

In addition to improving weather resistance, anti-yellowing agents can also effectively delay the aging process of auxiliary materials, thereby extending their service life. Just imagine if the buttons or zipper on a garment become dull and even cracked due to yellowing, then the aesthetics and practicality of the entire garment will be greatly reduced. The presence of anti-yellowing agents can ensure that these auxiliary materials always remain in good condition and add a lasting charm to the clothes.

3. Meet diversified needs

As consumers continue to improve their clothing quality requirements, clothing accessories also need to have more diverse functions. For example, some high-end brands may want their accessories not only to have excellent anti-yellowing properties, but also to meet environmental standards. Polyurethane TPE anti-yellowing agent can just meet these needs, and by adjusting the formula and process parameters, a perfect balance between performance and environmental protection is achieved.

4. Current status and development trends of domestic and foreign research

In recent years, significant progress has been made in the research on polyurethane TPE anti-yellowing agents. The following will be analyzed from two dimensions at home and abroad:

1. Current status of domestic research

In China, the research on polyurethane TPE anti-yellowing agents mainly focuses on the development of new and efficient products and the optimization of production processes. For example, a scientific research team passedThrough the research on the combination of a variety of ultraviolet light stabilizers, a composite anti-yellowing agent suitable for high-end clothing accessories has been successfully developed, and its performance indicators have reached the international leading level. In addition, there are research institutions committed to exploring green production processes, striving to ensure product quality while reducing the impact on the environment.

2. International research trends

In contrast, foreign research in the field of polyurethane TPE anti-yellowing agents started early and the technical level was relatively mature. For example, a new antioxidant launched by a well-known American company adopts a unique molecular design, which not only improves the anti-yellowing effect of the product, but also greatly reduces costs. In Europe, some research institutions focus on developing anti-yellowing agents based on bio-based raw materials, striving to achieve the goal of being completely degradable.

3. Future development trends

Looking forward, the development of polyurethane TPE anti-yellowing agents will show the following trends:

  • Multifunctionalization: Single-function anti-yellowing agents can no longer meet market demand. In the future, products will pay more attention to multifunctional integration, such as anti-yellowing, antibacterial and flame retardant functions.
  • Green and Environmental Protection: With the increasing global environmental awareness, the development of low-toxic and low-volatility green anti-yellowing agents will become the focus of research.
  • Intelligent: With the development of nanotechnology and smart materials, the future anti-yellowing agent may have self-healing functions to further improve the service life of the product.

5. Product parameter comparison analysis

In order to more intuitively show the performance differences between different types of anti-yellowing agents, the following list of key parameters comparison tables for several common products:

Parameters/Product Type UV stabilizer A Antioxidant B Compound anti-yellowing agent C
UV resistance ?????? ?????? ?????
Antioxidation capacity ?????? ?????? ?????
Cost Medium Lower Higher
Environmental Performance Complied with standards Complied with standards Complied with the standards

It can be seen from the above table that although the composite anti-yellowing agent C is relatively expensive, it performs excellently in terms of UV resistance and oxidation resistance, so it is particularly suitable for the production of high-end clothing accessories.

VI. Conclusion

To sum up, polyurethane TPE anti-yellowing agent plays a crucial role in improving the quality of clothing accessories. By choosing the appropriate anti-yellowing agent type and combining with scientific production processes, the problem of yellowing of auxiliary materials can be effectively solved, thereby improving the market competitiveness of the product. In the future, with the continuous advancement of technology, I believe that anti-yellowing agents will usher in broader application prospects and inject new vitality into the clothing industry.

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Use polyurethane TPE anti-yellowing agent to improve the durability of sports facilities

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: a secret weapon for durability of sports facilities

In modern society, sports facilities are not only an important place for fitness and entertainment, but also a symbol of the city’s image and quality of life. However, these facilities often face various environmental challenges such as ultraviolet radiation, extreme temperature changes, and chemical erosion, which can accelerate the aging of materials and cause their appearance and performance to decline rapidly. Among them, the yellowing problem is particularly prominent. It not only affects the aesthetics of the facilities, but also may weaken the mechanical properties of the materials and shorten their service life.

Polyurethane thermoplastic elastomers (TPEs) have attracted much attention due to their unique physical properties and widespread industrial applications. However, when exposed to natural environments for a long time, this material is prone to yellowing, thus limiting its use in areas of high outdoor demand. To solve this problem, scientists have developed anti-yellowing agents specifically targeted at polyurethane TPE. This type of additive effectively delays the yellowing rate of the material by inhibiting photooxidation reactions and other degradation processes, thereby significantly improving the durability and visual effect of sports facilities.

This article will deeply explore the key role of polyurethane TPE anti-yellowing agents in improving the durability of sports facilities. We will not only introduce in detail the working principle of the anti-yellowing agent and its specific impact on material properties, but also provide detailed product parameters and domestic and foreign research data support. In addition, the article will combine actual case analysis to show how to optimize the design and maintenance strategies of sports facilities through the rational selection and use of anti-yellowing agents. Next, please follow our steps and explore the mystery behind this science together!

1. Basic knowledge of polyurethane TPE anti-yellowing agent

(I) What is polyurethane TPE?

Polyurethane thermoplastic elastomer (TPE) is a new polymer material that combines rubber elasticity and plastic processing properties. It consists of alternate hard and soft segments, with excellent wear resistance, flexibility and tear resistance. It is widely used in sports soles, track surface coatings, fitness equipment shells, and other sports facilities that require high strength and durability.

However, although polyurethane TPE itself has excellent performance, it is susceptible to external factors during long-term use, especially the effects of ultraviolet rays and oxygen, which will cause molecular chain breakage or crosslinking, which will lead to yellowing. This color change not only destroys the aesthetics of the product, but may also lead to a gradual degradation of material properties, ultimately affecting the overall life of the facility.

(II) Mechanism of action of anti-yellowing agent

In order to overcome this defect of polyurethane TPE, researchers have designed a special additive – anti-yellowing agent. This type of substance mainly works in the following ways:

  1. AbsorptionUltraviolet rays
    The UV absorbing components in the anti-yellowing agent can capture and convert high-energy ultraviolet rays, converting them into lower-energy thermal energy and releasing them, thereby avoiding the direct effect of ultraviolet rays on the polyurethane molecular chains and reducing the generation of free radicals.

  2. Capture free radicals
    Free radicals are one of the core factors that cause material aging. Anti-yellowing agents are able to actively capture these unstable molecules, preventing them from further attacking other polymer chains, thereby delaying the degradation process.

  3. Stable chemical structure
    Certain anti-yellowing agents can also enhance the antioxidant capacity of polyurethane TPE by adjusting the chemical environment inside the material, making it more tolerant of long-term use under harsh conditions.

(III) Classification of anti-yellowing agents

According to the functional characteristics and mechanism of action, anti-yellowing agents can be roughly divided into the following categories:

Category Description Common Representatives
Ultraviolet absorber Absorb UV rays and reduce the risk of photooxidation Benzotriazoles, benzophenones
Light Stabilizer Stop the occurrence of photochemical reactions Hardened amines (HALS)
Antioxidants Neutralize free radicals and slow down the oxidation process Stealed phenols and phosphites
Comprehensive Anti-yellowing Agent Combining multiple functions, providing comprehensive protection Complex Products

Each type of anti-yellowing agent has its unique advantages and scope of application. The specific choice needs to be adjusted according to the needs of the actual application scenario.

2. Detailed explanation of the product parameters of polyurethane TPE anti-yellowing agent

In practical applications, understanding the various technical parameters of anti-yellowing agents is crucial to ensure their effectiveness. The following are the main performance indicators and reference values ??of several common anti-yellowing agents:

parameter name Unit Test Method Reference value range Remarks
Density g/cm³ ASTM D792 1.05-1.20 Influence the amount of addition and uniform distribution
Thermal Stability ? ISO 3146 >280 Remain active under high temperature environment
Migration resistance % GB/T 24135 <1.0 Prevent contaminated surfaces from the material
Anti-yellowing index – ASTM D2244 ?5 The lower the value, the better
Compatibility – Laboratory Assessment Good Ensure full integration with the substrate

It should be noted that different brands and models of anti-yellowing agents may have slight differences, so you should carefully review the product instructions when purchasing and make a good choice based on laboratory test results.

III. Effect of polyurethane TPE anti-yellowing agent on the durability of sports facilities

(I) Theoretical basis and experimental verification

Study shows that after one year of exposure to untreated polyurethane TPE in outdoor conditions, its yellow index usually increases by about 10-15 units, while the tensile strength drops by more than 20%. After adding an appropriate amount of anti-yellowing agent, the yellow index increase of the same material during the same time period can be controlled within 3 units, and the mechanical properties remain basically unchanged. This significant improvement is attributed to the effective protection of the material’s internal structure by the anti-yellowing agent.

For example, an internationally renowned research team has compared the weather resistance of two runway surface coating materials: one contains only ordinary antioxidants, and the other adds a high-performance comprehensive anti-yellowing agent. The results show that the latter has always maintained a good appearance in three consecutive years of outdoor testing, while the former has obvious fading and cracking.

(II) Analysis of specific application cases

1. Long-lasting wear resistance of sports soles

As an important equipment for athletes’ daily training, sports soles directly affect the user’s performance. Traditional polyurethane TPE soles are prone to yellowing or even opening when frequently rubbed and exposed to sunlight.cracking situation. By introducing anti-yellowing agents, modern sole materials can greatly improve anti-aging capabilities and extend service life while ensuring light weight.

2. Anti-corrosion performance of fitness equipment shells

The equipment shells in the gym often lose their luster due to the erosion of chemicals such as sweat and detergents. The shell made of polyurethane TPE material containing high-efficiency anti-yellowing agent can not only resist these external threats, but also maintain a long-lasting appearance, bringing a better experience to users.

3. Anti-slip and anti-fouling performance of outdoor basketball court floor

The outdoor basketball court must have extremely high stability and easy cleaning in the face of wear caused by rain erosion, dust accumulation and vigorous exercise. The polyurethane TPE coating modified with anti-yellowing agent can not only resist yellowing caused by ultraviolet rays, but also effectively prevent oil stains from penetration, so that the court always maintains bright colors and good grip.

IV. Domestic and foreign literature reviews and new research results

In recent years, many breakthroughs have been made in the research on polyurethane TPE anti-yellowing agents. The following lists some representative achievements for readers’ reference:

  1. American scholar Smith et al. (2020) proposed a new anti-yellowing agent formula based on nanotechnology. This formula significantly improves its dispersion and long-term effectiveness by uniformly dispersing the ultraviolet absorber on the surface of nanoparticles. Experiments show that this new method can improve the anti-yellowing ability of polyurethane TPE by nearly 40%.

  2. The Research Group of Ruhr University in Germany (2021) found that by optimizing the interaction between the anti-yellowing agent and the substrate, the initial yellowing tendency of the material can be further reduced. They proposed a “pre-crosslinking” process, so that the anti-yellowing agent has formed a stable network structure during the material forming stage, thereby better exerting its functions.

  3. Institute of Chemistry, Chinese Academy of Sciences (2022) has carried out a large-scale outdoor weather resistance testing project, systematically evaluating the actual performance of a variety of commercial anti-yellowing agents. The results show that some compound products are better than single-component additives in comprehensive performance, and are especially suitable for long-term applications in complex environments.

V. Summary and Outlook

The emergence of polyurethane TPE anti-yellowing agent provides a powerful solution to improve the durability of sports facilities. Whether it is sports soles, fitness equipment or outdoor venues, you can achieve a longer service life and better visual effect by scientifically selecting appropriate anti-yellowing agents. In the future, with the continuous advancement of new material technology and processing technology, I believe that the application scope of anti-yellowing agents will be further expanded.Large, its performance will be more complete.

After, let us summarize the core idea of ??this article in one sentence: polyurethane TPE anti-yellowing agent is like an invisible protective umbrella, sheltering sports facilities from the wind and rain, so that they can still shine in the baptism of time!

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