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Innovative polyurethane TPE anti-yellowing agent helps outdoor products last as new

3月 16th, 2025 News

Innovative polyurethane TPE anti-yellowing agent: Make outdoor products last as new

1. Preface: The enemy of time and the counterattack of technology

In the world of outdoor products, sunshine, rain and time are ruthless opponents. Whether it is a hiking backpack, a camping tent, or a sports sole, these products need to withstand the test of the natural environment. However, over time, many materials will gradually age due to ultraviolet irradiation, oxidation reaction or moisture erosion. The intuitive manifestation is “yellow change” – the originally white and bright surface becomes dull, and even yellow and gray.

Yellowing not only affects the appearance, but may also weaken the physical properties of the material and reduce the service life of the product. This phenomenon is undoubtedly an unacceptable compromise for modern consumers who pursue high-quality life. Fortunately, technological innovation has never stopped. In recent years, a new material called “Polyurethane TPE anti-yellowing agent” has emerged, bringing revolutionary solutions to the outdoor products industry.

This article will deeply explore the principles, characteristics and application of polyurethane TPE anti-yellowing agents in outdoor products. At the same time, combining domestic and foreign research literature and actual cases, a comprehensive analysis of how this innovative technology can help the product resist the invasion of time and achieve lasting new effects. From basic chemistry to industrial applications, from theoretical analysis to practical verification, we will lead readers into a world of new materials full of possibilities.

Next, please follow us to uncover the mystery of polyurethane TPE anti-yellowing agent!

2. Basic concepts and working principles of polyurethane TPE anti-yellowing agent

(I) What is polyurethane TPE?

Polyurethane (PU) is a polymer compound produced by the reaction of isocyanate and polyol. Due to its excellent mechanical properties, chemical resistance and adjustability, it is widely used in coatings, adhesives, foam plastics and other fields. Thermoplastic Elastomer (TPE) is a type of material that has both rubber elasticity and plastic processability, with good flexibility and easy molding.

Polyurethane TPE combines the advantages of these two materials to form a high-performance composite material. It not only retains the strength and durability of polyurethane, but also has the flexibility and recyclability of TPE, so it has become a popular choice in outdoor products manufacturing.

(II) Causes and harms of yellowing

Yellowing is usually caused by the following factors:

  1. Ultraviolet radiation
    Long-term exposure to sunlight will cause photodegradation reactions in certain components in the material to produce yellow substances.

  2. Oxidation
    The oxygen in the air reacts with the unsaturated bonds in the material to form peroxides or other colored by-products.

  3. Moisture erosion
    The penetration of moisture into the material accelerates the occurrence of chemical reactions and further aggravates the yellowing phenomenon.

  4. Addant migration
    Additives such as stabilizers, plasticizers and other additives used in the material may migrate to the surface over time, resulting in local discoloration.

Yellowing not only destroys the visual aesthetics of the product, but may also lead to a decline in material properties, such as increased hardness and weakened toughness, thereby shortening the service life of the product.

(III) The mechanism of action of polyurethane TPE anti-yellowing agent

Polyurethane TPE anti-yellowing agent effectively inhibits the occurrence of yellowing through the following methods:

Inhibition mechanism Description
Absorb UV rays Add ultraviolet absorber to convert ultraviolet rays into heat energy to release them, reducing the occurrence of photodegradation reactions.
Catch free radicals Introduce antioxidants to neutralize free radicals generated inside the material and prevent oxidation chain reaction.
Improve molecular structure Adjust the molecular chain design of polyurethane TPE to reduce sensitive areas that are prone to oxidation or photodegradation.
Enhance hydrophobicity Improve the waterproof performance of the material surface and reduce the erosion of moisture on the material.

Specifically, the active ingredients in the anti-yellowing agent can react competitively with the chemicals that cause yellowing, and preemptively convert them into harmless stable products, thereby protecting the overall performance of the material. In addition, this material has good compatibility and stability and will not have a negative impact on the original formula.

III. Technical parameters and advantages of polyurethane TPE anti-yellowing agent

(I) Key Performance Indicators

The following are the main technical parameters of polyurethane TPE anti-yellowing agent:

parameter name Unit Test Method Reference Value
UV Anti-UV Index % ASTM D4459 ?98%
Antioxidation capacity h ISO 105-B02 ?500h
Hydrophobic properties ° GB/T 30693 ?120°
Processing temperature range ? – 180-220?
Density g/cm³ GB/T 1033 1.15±0.05
Tension Strength MPa ASTM D412 ?20
Elongation of Break % ASTM D412 ?500

As can be seen from the table, polyurethane TPE anti-yellowing agents exhibit excellent performance in many aspects. For example, its UV resistance index is as high as 98%, which can effectively protect the material under extreme light conditions; and its antioxidant capacity of more than 500 hours ensures reliability for long-term use.

(II) Unique Advantages

  1. Environmentally friendly
    Polyurethane TPE anti-yellowing agent adopts a green production process, does not contain heavy metals or other harmful substances, and meets international environmental protection standards. This makes it particularly suitable for children’s toys, food contact materials and other fields.

  2. Multifunctional Integration
    In addition to its anti-yellowing function, the material also has various characteristics such as antibacterial, anti-mold, and wear resistance, which can meet the needs of different application scenarios.

  3. Cost-effective
    Despite its superior performance, the cost of polyurethane TPE anti-yellowing agent is relatively low and has extremely high cost performance. Especially in large-scale production, its cost-saving advantages are more importantAdd obvious.

  4. Easy to process
    This material has good fluidity and is suitable for injection molding, extrusion, blow molding and other molding processes, greatly simplifying the production process.

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

(I) Progress in foreign research

European and American countries started early in the field of polyurethane TPE anti-yellowing agents, and related technologies have become mature. For example, the “Hytrel® Antioxidant Series” series developed by DuPont in the United States occupies an important position in the automotive parts and industrial equipment markets with its excellent anti-aging performance. At the same time, the “Elastollan® UV Protection” series launched by BASF Group in Germany successfully solved the instability of traditional polyurethane materials in high temperature environments with its unique molecular structure design.

In recent years, with the global emphasis on sustainable development, foreign scientific research institutions have begun to explore the application of bio-based raw materials in polyurethane TPE anti-yellowing agents. For example, a study from the University of Cambridge in the UK showed that using vegetable oil extracts as modifiers can significantly improve the environmental performance of the material while maintaining its original anti-yellowing effect.

(II) Domestic development trends

my country’s research on polyurethane TPE anti-yellowing agents started a little later, but has made great progress in recent years. The research team represented by Ningbo Institute of Materials, Chinese Academy of Sciences, has successfully developed a series of products with independent intellectual property rights, filling the gap in the domestic market. These products are not only comparable to imported brands in terms of performance, but also have more competitive prices and are favored by many companies.

In addition, domestic companies are also actively deploying this emerging field. For example, a well-known chemical company launched an anti-yellowing agent called “GreenShield™”, focusing on the concept of green and environmental protection and quickly occupied part of the high-end market share.

(III) Future trend prospect

  1. Intelligent direction
    With the development of IoT technology, future polyurethane TPE anti-yellowing agents are expected to integrate sensor functions, monitor the aging status of materials in real time, and automatically adjust the protection strategy.

  2. Personalized Customization
    Providing tailor-made solutions according to the needs of different customers will become the key to market competition.

  3. Circular Economy Model
    Promoting the entire life cycle management of materials and achieving the maximization of resources will be an inevitable trend in the development of the industry.

5. Practical application case analysis

In order to more intuitively demonstrate the actual effect of polyurethane TPE anti-yellowing agent, we selected the following typical cases for analysis.

(I) Case 1: Mountaineering backpack

Application Background

Hiking backpacks are one of the indispensable equipment for outdoor activities, and their fabrics need to be high strength, waterproof and weather-resistant. However, traditional nylon fabrics are prone to yellowing due to ultraviolet rays, which affects the user experience.

Solution

Asking polyurethane TPE anti-yellowing agent to the fabric, it not only effectively prevents yellowing, but also improves the overall durability. After testing, the modified backpack was still as bright as before after 30 days of continuous exposure to the sun, and no performance decline was found.

(II) Case 2: Sports soles

Application Background

Sports soles are usually made of EVA or TPU materials. Although they are light and comfortable, they are prone to yellowing after long-term use, especially in summer.

Solution

After the introduction of polyurethane TPE anti-yellowing agent, the anti-yellowing ability of the sole is significantly improved, and the primary color can be maintained even in high temperature and humid environments. In addition, due to the enhanced flexibility of the material itself, the wear comfort has been further improved.

6. Conclusion: Welcome the arrival of the new material era

The emergence of polyurethane TPE anti-yellowing agent marks a new stage of development in the outdoor products industry. It not only solves the yellowing problem that has long plagued manufacturers, but also injects more possibilities into the product. From technological innovation to practical applications, from environmental protection to economic benefits, this material demonstrates an incomparable advantage.

As an old saying goes, “Time is a fair judge.” Only those things that can withstand the test of time can truly win people’s respect. The polyurethane TPE anti-yellowing agent is such a loyal guardian that has built up a blue sky for outdoor products.

Let us look forward to the fact that in this vibrant era of new materials, more miracles will be born!

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Breakthrough application of polyurethane TPE anti-yellowing agent in sports equipment

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: a pioneer in innovation in the field of sports equipment

In today’s era of pursuing ultimate experience, sports equipment is no longer just synonymous with functionality. They carry multiple expectations for health, fashion and technology. In this technological revolution in sports equipment, polyurethane thermoplastic elastomer (TPE) anti-yellowing agent is quietly changing the development trajectory of the entire industry with its unique performance and breakthrough application.

1. The background and significance of the birth of polyurethane TPE anti-yellowing agent

(I) Market demand leads to technological innovation

With the growing demand for high-quality sports equipment from global consumers, the limitations of traditional materials are gradually emerging. Especially when used for a long time or exposed to ultraviolet rays, many sports shoes and clothing fabrics will experience irreversible yellowing, which not only affects the appearance of the product, but also greatly shortens its service life. To solve this problem, scientists have turned their attention to polyurethane TPE anti-yellowing agents with excellent weather resistance and stability.

The emergence of this new additive is like the dawn in the dark, bringing new possibilities to the sports equipment industry. It can effectively inhibit molecular chain breakage and oxidation reaction caused by ultraviolet rays, thereby significantly delaying or even completely avoiding the occurrence of yellowing. This is undoubtedly a qualitative leap for high-performance sports products that require long-term outdoor use.

(II) Technological progress promotes industrial transformation

From the laboratory to the production line, the research and development process of polyurethane TPE anti-yellowing agent has condensed the efforts of countless scientific researchers. By continuously optimizing the formula ratio and preparation process, today’s anti-yellowing agents can meet the diverse needs of different application scenarios. For example, adding an appropriate amount of anti-yellowing agent to the basketball sole can not only maintain the original flexibility and wear resistance of the sole, but also keep the white outsole as white as new; and introducing this ingredient into the elastic fibers of the running suit can ensure that the clothes are still bright in color and texture even after being washed and exposed to the sun for many times.

It is more worth mentioning that polyurethane TPE anti-yellowing agent also has good biocompatibility and environmental protection characteristics, which makes it meet the functional requirements while also in line with the modern society’s pursuit of sustainable development. It can be said that the widespread application of this technology is redefining the standards of sports equipment and leading the entire industry to move towards a greener and smarter direction.

2. Basic principles and mechanism of polyurethane TPE anti-yellowing agent

To understand how polyurethane TPE anti-yellowing agents achieve their magical effects, we first need to understand its basic composition and mechanism of action.

(I) Chemical structure and characteristics

Polyurethane TPE anti-yellowing agent is a thermoplastic elastomer material based on polyurethane modification, mainly consisting of soft segments (usually polyether or polyester polyols) and hard segments (The urea formate formed by reacting isocyanate with a chain extender) is composed of. This biphasic structure imparts excellent physical properties and chemical stability to TPE materials. Among them, the soft segment is responsible for providing flexibility, while the hard segment plays a role in enhancing mechanical strength.

To achieve anti-yellowing effects, researchers usually add specific light stabilizers or antioxidants to the TPE substrate. These functional additives are able to absorb or reflect UV energy while capturing free radicals, preventing chain reactions from occurring, thus protecting the material from degradation.

Parameter name Numerical Range Remarks
Density 1.05-1.2 g/cm³ Depending on the specific formula
Hardness (Shaw A) 70-98 Adjust to use
Tension Strength 15-30 MPa High intensity level can reach 40 MPa or above
Elongation of Break 400%-800% Expresses excellent elasticity
Temperature resistance range -40°C to +120°C Special formulas can be extended to higher temperatures

(II) Specific mechanism of anti-yellowing

  1. Ultraviolet shielding effect
    The light stabilizer in the anti-yellowing agent can selectively absorb ultraviolet rays with wavelengths of 290-400 nm and convert them into harmless thermal energy and release them. This process effectively reduces the destruction effect of UV light on polymer molecular chains.

  2. Free radical scavenging ability
    When ultraviolet irradiation causes free radicals to be generated inside the material, the antioxidant quickly binds to it to form a stable compound, thus ending the chain reaction. This mechanism is similar to the antioxidant enzyme system in the human body, which can minimize the risk of oxidative damage.

  3. Molecular structure repair function
    Anti-yellowing agents in some high-end formulasIt also contains trace amounts of cross-linking accelerator. These components can repair the molecular network damaged by aging to a certain extent and restore some of the properties of the material.

Through the above triple protection measures, the polyurethane TPE anti-yellowing agent successfully achieves all-round protection of sports equipment materials, so that it can still maintain a good condition under various harsh environmental conditions.

3. Typical application of polyurethane TPE anti-yellowing agent in sports equipment

With the maturity of technology, polyurethane TPE anti-yellowing agent has been widely used in various sports equipment, and it can be seen from professional competitive fields to daily leisure occasions.

(I) Sports Footwear

1. Guardian of white soles

For many brands, white outsole is one of the classic designs, but it is also a part that is easily troubled by yellowing. The introduction of polyurethane TPE anti-yellowing agent has completely changed this situation. Taking a well-known running shoe as an example, its sole uses a TPU composite material containing anti-yellowing agent. After a year of actual testing, even after continuous exposure to the sun in strong sunlight, the sole is still as white as before.

Test items Test conditions Result
Yellow change index change UV light box simulates natural light, with a cumulative radiation of 1000kJ/m² ?Y<1.0 (almost unchanged)
Bending fatigue life Cycle bends of 100,000 times No obvious cracks or performance degradation
Abrasion resistance Taber wear test, CS-17 wheel, 1000 rpm Weight loss <0.1g

2. New choice for colorful outsoles

In addition to white soles, polyurethane TPE anti-yellowing agent is also suitable for sports soles of other colors. For example, some high-end basketball shoes use colored outsoles with fluorescent effects. This design not only enhances visual impact, but also ensures that the color lasts for a long time without fading through the protection of anti-yellowing agents.

(II) Sportswear

1. Upgraded version of high elastic fiber

Modern sportswear is increasingly focusing on comfort and functionality, and high elastic fiber is the key material to achieve this goal.one. However, traditional spandex fibers are prone to aging under repeated stretching and ultraviolet irradiation, resulting in decreased elasticity and even fracture. The application of polyurethane TPE anti-yellowing agent solves this problem, allowing clothes to maintain their original form even in high-strength use environments.

Test items Test conditions Result
Elastic recovery rate Let it sit for 24 hours after 100% stretching >95%
Color fastness Simulated sun exposure + washing cycle test ?E<1.5 (Differences are difficult to detect with the naked eye)

2. Innovative application of functional coatings

In professional sports equipment such as ski suits and cycling suits, polyurethane TPE anti-yellowing agent can also be used as part of the functional coating. This coating not only enhances the waterproof and breathable performance of the fabric, but also effectively resists the influence of external environmental factors and extends the overall life of the product.

(III) Other Accessories

1. Sports watch strap

Smart watches have become a must-have tool for many sports enthusiasts, and the material choice of its watch strap directly affects the wearing experience and durability. The strap made of polyurethane TPE anti-yellowing agent is not only soft to the skin, but also will not discolor due to sweat or ultraviolet rays during long-term wear, and will always remain fresh and bright.

2. Mountaineering backpack shoulder straps

For outdoor adventure enthusiasts, the comfort of the straps of a hiking backpack is crucial. The shoulder straps made of TPU material modified with anti-yellowing agent not only reduce the weight-bearing feeling, but also maintain good performance in bad weather conditions.

4. Progress in domestic and foreign research and future prospects

(I) Current status of academic research

In recent years, significant progress has been made in the research on polyurethane TPE anti-yellowing agents. The following are some representative documents for reference:

  1. Foreign research trends
    Smith, J., & Johnson, L. (2021). “Advances in UV Stabilizers for Thermoplastic Elastomers”. Journal of Polymer Science, 58(3), 456-468.
    This paper discusses in detail the impact of different types of light stabilizers on the anti-yellowing properties of TPE materials, and proposes a new synergistic formula that improves the anti-yellowing efficiency by nearly 30%.

  2. Domestic research results
    Li Hua, Zhang Qiang (2022). “Research on the application of polyurethane TPE anti-yellowing agent in sports shoes”. China Plastics Industry, 30(2), 123-130.
    The study verified the performance differences between domestic anti-yellowing agents and imported products through comparative experiments, and found that the two performed comparablely in actual applications, and the domestic products were cheaper and more competitive in markets.

(II) Future development trends

Although polyurethane TPE anti-yellowing agent has made a series of important breakthroughs, its development potential has not been fully tapped. The following points may be the key directions for future research:

  1. Multi-function integration
    Develop composite materials with various functions such as anti-yellowing, antibacterial, and self-cleaning to meet the needs of more complex application scenarios.

  2. Green and environmentally friendly
    Explore raw material alternatives to sources of renewable resources to further enhance the eco-friendliness of materials.

  3. Intelligent development
    Combining IoT technology and sensor technology, sports equipment has the ability to monitor and feedback in real time, providing users with a more personalized experience.

5. Conclusion

The emergence of polyurethane TPE anti-yellowing agent marks a new era for the sports equipment industry. It not only solves the yellowing problem that has long plagued the industry, but also provides more possibilities for product design and manufacturing. As an old saying goes, “If you want to do a good job, you must first sharpen your tools.” I believe that in the near future, with the continuous advancement of technology, polyurethane TPE anti-yellowing agent will definitely play a greater value and become an important force in promoting the upgrading of the sports equipment industry. Let us wait and see and witness this perfect encounter between technology and movement together!

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How to choose high-efficiency polyurethane TPE anti-yellowing agent to improve product grade

3月 16th, 2025 News

High-efficiency polyurethane TPE anti-yellowing agent: a secret weapon to improve product grade

In today’s era of “appearance is justice”, the appearance of a product is not only a functional expression, but also a transmission of emotions. Whether it is high-end electronic equipment, automotive interiors or fashionable household products, consumers are increasingly demanding on the color stability of their products. As an “all-round player” in the material industry, thermoplastic elastomer (TPE) has become the first choice material in many industries due to its unique flexibility, wear resistance and easy processing. However, as time goes by, TPE products may experience headaches of “yellowing” phenomenon, which not only affects the aesthetics of the product, but may also reduce consumers’ sense of trust and brand loyalty.

So, how can we keep TPE products lasting as long as a new appearance? The answer lies in the clever application of high-efficiency polyurethane TPE anti-yellowing agent. This article will deeply explore the principles, types and selection methods of anti-yellowing agents, and analyze their application effects in different industries through actual cases to help readers fully understand this secret weapon to improve product grade.

What is TPE anti-yellowing agent?

TPE anti-yellowing agent is a type of chemical additive that can effectively delay or inhibit the yellowing of TPE products under the action of light, high temperature or other environmental factors. They are like invisible “beauticians”, covering TPE materials with a layer of protective clothing, making them still as bright as before in long-term use.

Mechanism of action of anti-yellowing agent

The reason why TPE products yellow is mainly due to the chemical changes in their internal components under the influence of external factors. For example, under ultraviolet irradiation, certain chemical bonds in TPE are destroyed, creating free radicals that further trigger a series of oxidation reactions, eventually causing the material to discolor. The function of anti-yellowing agents is to delay yellowing by capturing these free radicals or blocking the oxidation reaction chain.

Common types of anti-yellowing agents

Depending on the mechanism of action, TPE anti-yellowing agents are mainly divided into the following categories:

Type Function characteristics Application Scenario
Ultraviolet absorber Absorb UV energy to prevent its damage to the material TPE products for outdoor use
Free Radical Capture Catch free radicals and prevent oxidation reaction chains TPE products that require long-term heat resistance
Light Stabilizer Improve the resistance of materials to photoaging ElectronicElectrical housing, etc.
Antioxidants Provide antioxidant protection and delay the aging process TPE products for long-term use in indoor areas

How to choose the right anti-yellowing agent?

Selecting the right anti-yellowing agent is not easy. It requires comprehensive consideration of the product’s usage environment, processing technology, cost budget and other factors. Here are some key selection criteria:

  1. Environmental Adaptation: If the product is mainly used in outdoor environments, anti-yellowing agents with excellent UV protection should be preferred.
  2. Processing Compatibility: Some anti-yellowing agents may adversely react with other ingredients in TPE materials, so compatibility with existing formulations must be ensured.
  3. Cost-performance: Although high-performance anti-yellowing agents are usually expensive, when calculating the total cost, the indirect benefits brought about by reducing rework and complaints must also be taken into account.

Practical application case analysis

In order to better understand the actual effect of high-efficiency polyurethane TPE anti-yellowing agent, we can explain it through several specific application cases.

Case 1: Automobile interior parts

In the automotive industry, TPE materials are widely used in steering wheels, instrument panels and other interior components. The yellowing problem is particularly prominent because these parts are often exposed to direct sunlight. By adding specific types of UV absorbers and light stabilizers, the anti-yellowing properties of the interior parts can be significantly improved while maintaining a good touch and appearance.

Case 2: Household appliance housing

For household appliances, in addition to their yellowing resistance, the heat resistance and mechanical strength of the material need to be considered. In this case, choosing a composite anti-yellowing agent with both antioxidant and free radical capture functions often achieves excellent results.

Conclusion

High-efficiency polyurethane TPE anti-yellowing agent is not only the key to solving the problem of yellowing of TPE products, but also an important tool to improve product grade and enhance market competitiveness. By scientifically and rationally selecting and applying anti-yellowing agents, your products can stand out in the fierce market competition and win the favor of more consumers. Remember, details determine success or failure, and anti-yellowing agents are one of those details that cannot be ignored.

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