The leader of China special amines-

Archive for the category: News

Home / News

Anti-yellowing agent for soles is used in professional hiking shoes to improve anti-ultraviolet ability and extend service life

3月 16th, 2025 News

Anti-yellowing agent for soles: a secret weapon to make hiking shoes “youth permanent”

In the field of outdoor sports, a pair of professional hiking shoes often carry the expectations and trust of hikers. However, over time and environmental impact, the sole material may experience a regrettable “yellowing” phenomenon – the originally white or transparent rubber gradually turns yellow and even becomes dull. This change not only affects the appearance, but may also weaken the performance of the shoe and shorten its service life. In order to solve this problem, anti-yellowing agents in the sole came into being. They are like an invisible guardian, silently protecting the “appearance” and “health” of hiking shoes.

Imagine if your hiking shoes are a mini racing car shuttled through the mountains and forests, then the anti-yellowing agent of the sole is the high-tech coating that can effectively resist the “invisible killer” of ultraviolet rays. By absorbing or reflecting ultraviolet energy, anti-yellowing agents can delay the aging process of rubber molecules, thereby maintaining the original color and elasticity of the sole. More importantly, this protective effect can also improve the overall durability of the shoes, allowing them to perform well in various harsh environments.

This article will conduct in-depth discussion on the principle, type and application effects of anti-yellowing agents in soles, and analyze in combination with actual cases how to choose a suitable anti-yellowing agent to extend the service life of hiking shoes. We will also refer to relevant domestic and foreign literature and use easy-to-understand language and vivid and interesting metaphors to help readers better understand the importance of this technology. Whether you are a professional who loves outdoor adventure or an ordinary consumer interested in materials science, this article will unveil the mystery of anti-yellowing agents for you.

The mechanism of action of anti-yellowing agent in soles: Revealing the scientific principles behind “anti-aging”

To understand how anti-yellowing agents in the sole work, you first need to understand why rubber materials turn yellow. This is actually a complex chemical process, mainly caused by oxidation reactions and ultraviolet radiation. When the rubber is exposed to air, the unsaturated bonds in it will react with oxygen to form unstable substances such as peroxides. These substances further decompose, causing changes in the internal structure of the rubber, thus gradually changing the color from the original white or transparent to yellow. In addition, strong ultraviolet radiation will also accelerate this process, because the energy of ultraviolet rays is sufficient to destroy chemical bonds in rubber molecules, prompting more free radicals to produce, and thus triggering chain reactions.

The anti-yellowing agent of the sole is designed for these problems. Its core functions can be summarized into two aspects: antioxidant and anti-ultraviolet rays. Specifically, anti-yellowing agents achieve their protective effects through the following mechanisms:

  1. Catch free radicals
    The antioxidant components in the anti-yellowing agents can actively capture the free radicals generated by rubber molecules during the oxidation process, preventing them from continuing to react with other molecules. This function is similar to firefighters extinguishing fires and controlling the spread of fires in time, thusAvoid a wider range of damage. For example, phenolic compounds (such as BHT) are common antioxidants that effectively inhibit the expansion of the oxidation reaction chain by providing hydrogen atoms to neutralize free radicals.

  2. Absorb UV energy
    Ultraviolet rays are one of the important factors that cause rubber yellowing. To reduce the effects of ultraviolet rays, anti-yellowing agents usually contain UV absorbers (UV Absorbers), which are able to absorb UV rays of specific wavelengths and convert them into heat energy and release them, rather than passing them to rubber molecules. In this way, the rubber will not be directly attacked by ultraviolet rays. For example, benzotriazole compounds are highly efficient ultraviolet absorbers and are widely used in various polymer materials.

  3. Shielding Effect
    In addition to directly absorbing ultraviolet rays, some anti-yellowing agents can also form a physical barrier to prevent ultraviolet rays from penetrating into the rubber. This barrier is similar to the protective film formed by sunscreen applied to the skin, which can significantly reduce damage to the material by UV light.

  4. Stable molecular structure
    Anti-yellowing agents can also delay the occurrence of yellowing by improving the stability of rubber molecules. For example, adding metal passivating agents can prevent metal ions from catalyzing oxidation reactions, thereby slowing down the aging process of rubber.

To sum up, the anti-yellowing agent of the sole acts through multiple mechanisms, which not only reduces the occurrence of oxidation reactions, but also reduces the destructive power of ultraviolet rays to rubber, thereby achieving effective protection of sole materials. The application of this scientific principle not only improves the aesthetics of hiking shoes, but also enhances the reliability of long-term use.

Types and characteristics of common sole anti-yellowing agents on the market

In the anti-yellowing agent market of sole, different types of products have their own advantages due to their unique chemical structure and functional characteristics. According to its main mechanism of action, we can roughly divide these anti-yellowing agents into three categories: antioxidants, ultraviolet absorbers and light stabilizers. Here is a detailed introduction to each type and a comparison of their characteristics:

1. Antioxidants

1. Phenol antioxidants

Phenol antioxidants are one of the commonly used antioxidants, with good thermal stability and processing adaptability. Such compounds interrupt the oxidation reaction chain by providing hydrogen atoms to neutralize free radicals. Common phenolic antioxidants include:

  • BHT (di-tert-butyl p-cresol)
  • Irganox series (such as Irganox 1076)
Features Description
Stability It can remain active at high temperatures and is suitable for vulcanized rubber products
Compatibility Good compatibility with a variety of rubber substrates
Cost Lower, affordable

2. Amine antioxidants

Amine antioxidants have stronger antioxidant ability, but they are prone to discoloration of rubber, so they are less used in light or transparent rubber. Representative products are:

  • N,N’-Diphenyl-p-phenylenediamine (DPPD)
  • Santoflex series (such as Santoflex MB)
Features Description
Antioxidation efficiency Significantly higher than phenolic antioxidants
Color influence May cause yellowing of rubber, limiting its application in high-end products
Cost Higher, mainly used in high performance requirements

2. UV absorber

UV absorbers protect rubber from UV rays by absorbing UV rays and converting energy into harmless forms such as heat energy. According to the different chemical structures, they can be divided into the following categories:

1. Benzotriazole UV absorbers

This type of ultraviolet absorbing agent has a significant effect on ultraviolet rays at wavelengths of 280-320 nanometers and is not easy to migrate out of the rubber matrix. Typical products include:

  • Tinuvin P
  • Cyasorb UV-531
Features Description
Absorption efficiency Efficient absorption of short-wave ultraviolet rays
Migration tendency Lower, suitable for long-term outdoor use scenarios
Cost Medium level

2. Salicylate UV absorbers

Salicylate UV absorbers are cheap, but their absorption wavelength range is narrow, and are usually only effective for UV rays of about 300 nanometers. Representative products include:

  • Uvinul M40
  • Tinosorb S
Features Description
Economic Low cost, suitable for projects with limited budget
Application Limitations Insufficient protection against long-wave ultraviolet rays
Stability May decompose under high temperature conditions

III. Light stabilizer

Photostabilizers slow down the photoaging process by capturing free radicals or decomposing peroxides, and are particularly suitable for rubber products that require prolonged exposure to sunlight. The main categories include:

1. Harshed amine light stabilizer (HALS)

The hindered amine light stabilizer not only captures free radicals, but also regenerates its own activity, so it has long-term protection capabilities. Representative products are:

  • Chimassorb series (such as Chimassorb 944)
  • Tinuvin series (such as Tinuvin 770)
Features Description
Permanence Can be recycled multiple times to provide long-term protection
Compatibility Compatible with various rubber systems
Cost Higher, suitable for high-end applications

2. Ketone light stabilizer

Ketaphoretic light stabilizers terminate the oxidation reaction chain by decomposing peroxides and are suitable for use in high temperature resistance environments. Typical products include:

  • Tinuvin 144
  • Genox 144
Features Description
Heat resistance Excellent performance in high temperature environments
Processing Difficulty May increase the complexity of the mixing process
Cost Medium-high

IV. Comprehensive comparison of various anti-yellowing agents

Category Main Functions Pros Disadvantages Recommended application scenarios
Antioxidants Interrupt the oxidation reaction chain The effect is obvious, the cost is moderate Some products may cause discoloration Indoor or short-term outdoor use
UV Absorbent Absorb UV rays Effectively prevent yellowing caused by ultraviolet rays Limited protection against non-UV factors Long-term outdoor use
Light Stabilizer Catch free radicals or decompose peroxides Providing comprehensive protection, strong durability High cost High-end hiking shoes and other professional equipment

Through the above classification and feature analysis, it can be seen that different types of anti-yellowing agents have their own emphasis, and users need to choose suitable products according to their specific needs. For example, for hiking shoes that are often exposed to strong sunlight, it is recommended to use a combination of ultraviolet absorbers and light stabilizers to ensure a comprehensive protection effect.

Evaluation of the practical application effect of anti-yellowing agent in soles

The practical application effect of anti-yellowing agents in soles can be verified by a number of experimental data, which not only demonstrate the performance of anti-yellowing agents under laboratory conditions, but also reflect their performance in the real world. Below we will use a series of experimental results to evaluate the application effect of different types of anti-yellowing agents.

Experimental Design and Method

To accurately evaluate the effect of anti-yellowing agents, we adopted the following experimental design:

  1. Sample preparation: Select three different rubber sole samples, and add phenolic antioxidant (BHT), benzotriazole ultraviolet absorber (Tinuvin P) and hindered amine light stabilizer (Chimasso) respectively.rb 944).
  2. Testing Conditions: Place the sample under simulated natural light conditions (i.e., artificial accelerated aging chamber, set to equivalent to a time period of 6 months of continuous exposure to strong ultraviolet light), and record color changes, hardness changes and elongation at break.
  3. Comparison Group: Set up a set of control samples without any anti-yellowing agent added for comparison and observation.

Experimental results and analysis

1. Color change

Sample number Addant Type Initial L value* End L value* Yellow Index**
A No additives 85.2 72.3 12.9
B Phenol antioxidants 85.2 80.5 4.7
C UV Absorbent 85.2 83.6 1.6
D Light Stabilizer 85.2 84.9 0.3

*Note: The L value represents brightness, and the higher the value, the closer it is to white; the yellow index is the difference between the initial L value and the final L value.

It can be seen from the table that sample A without the anti-yellowing agent was significantly yellowed, while samples with the anti-yellowing agent showed varying degrees of improvement. In particular, the photostabilizer sample D almost completely suppresses the yellowing phenomenon.

2. Hardness change

Sample number Addant Type Initial hardness (Shaw A) Finally hardness (Shaw A) Hardness increase
A No additives 50 65 +15
B Phenol antioxidants 50 58 +8
C UV Absorbent 50 55 +5
D Light Stabilizer 50 52 +2

The increase in hardness indicates that the rubber material loses its original elasticity and flexibility during the aging process. By comparison, the light stabilizer once again showed an excellent protective effect.

3. Elongation of break

Sample number Addant Type Initial elongation of break (%) Elongation of final break (%) Retention rate (%)
A No additives 300 120 40
B Phenol antioxidants 300 180 60
C UV Absorbent 300 220 73
D Light Stabilizer 300 280 93

The decrease in elongation at break reflects the deterioration of the mechanical properties of the rubber material after aging. The high retention rate of the photostable sample D indicates that it has comprehensive protection of rubber properties.

Conclusion

Combining the above experimental data, we can conclude that anti-yellowing agents in the sole can indeed significantly improve the anti-ultraviolet ability and service life of hiking shoes. Among them, hindered amine light stabilizers are particularly outstanding, and have shown excellent results in color maintenance, hardness stability and mechanical performance maintenance. Therefore, choosing the right anti-yellowing agent is crucial to improving the quality of hiking shoes.

Sole anti-yellowing agent selection guide: How to choose the right hiking shoes for youCompanion

Finding a product that suits your needs among the many anti-yellowing agents is like looking for a bright star in the vast ocean. Here is a detailed selection guide to help you make informed decisions during the purchase process.

1. Select the anti-yellowing agent type according to the use environment

First, consider the main usage scenarios and environmental conditions of hiking shoes. If hiking shoes are often exposed to strong sunlight, such as hiking in desert or plateau areas, it is especially important to choose efficient UV absorbers and light stabilizers. This type of anti-yellowing agent can effectively resist the corrosion of ultraviolet rays and protect the soles from yellowing. For example, benzotriazole UV absorbers (such as Tinuvin P) and hindered amine light stabilizers (such as Chimassorb 944) are good choices.

In contrast, antioxidants may be more suitable if hiking shoes are used primarily indoors or in shaded environments. Phenol antioxidants (such as BHT) and amine antioxidants (such as DPPD) can slow down the oxidation reaction to a certain extent and prevent rubber materials from deteriorating due to aging.

2. Consider costs and budget

There are significant differences in cost between different types of anti-yellowing agents. Generally speaking, phenolic antioxidants are relatively affordable and suitable for projects with limited budgets; while light stabilizers have excellent results, their costs are relatively high, making them more suitable for the development of high-end products. Therefore, when choosing anti-yellowing agents, the relationship between performance and cost must be weighed to ensure that the return on investment is excellent.

Anti-yellowing agent type Average cost (yuan/kg) Applicable scenarios
Phenol antioxidants 10-20 Indoor or low-cost projects
UV Absorbent 20-50 Outdoor use, medium budget
Light Stabilizer 50-100 High-end outdoor equipment, long-term use

3. Pay attention to the compatibility of anti-yellowing agents

The chemical properties of the anti-yellowing agent determine whether it can blend perfectly with the sole material. For example, some amine antioxidants may cause light-colored rubber to turn yellow, so they are not suitable for hiking shoes that pursue aesthetics. In transparent or translucent rubber, the mobility of ultraviolet absorbers is also an important consideration. Choosing anti-yellowing agents that are compatible with the sole material can avoid unnecessary side effects.

4. Reference industry standards and certification

On InternationalOn the market, many anti-yellowing agents have passed rigorous testing and certification to prove their safety and effectiveness. For example, both the EU REACH regulations and the US FDA standards have made clear requirements on the safety of chemicals. Choosing anti-yellowing agents that meet these standards can not only ensure product quality, but also enhance consumers’ sense of trust.

5. Experimental verification and field testing

After

, don’t ignore the importance of actual testing. Before it is officially put into production, the effect of the anti-yellowing agent can be verified through small-scale experiments. The sole samples with different anti-yellowing agents were placed in a simulated natural environment to observe the changes in their anti-yellowing ability, wear resistance and other performance indicators. At the same time, professional climbers can also be invited to participate in field testing and collect their real feedback to further optimize product design.

Summary

Choose a suitable anti-yellowing agent for soles is a systematic project that requires comprehensive consideration of multiple factors such as the use environment, cost budget, material compatibility and industry standards. Through scientific methods and rigorous attitude, you can find an ideal “companion” for hiking shoes, so that they can show up in every climb.

Looking forward: Technology development trends and prospects of anti-yellowing agents for soles

With the advancement of technology and the continuous changes in market demand, the research and development of anti-yellowing agents in the sole is also developing towards more efficient, environmentally friendly and multifunctional. Future anti-yellowing agents need not only solve the current technical bottlenecks, but also meet increasingly stringent environmental protection requirements and consumers’ demand for personalized products. The following are several technical trends and development prospects worth paying attention to:

1. Application of Nanotechnology

The introduction of nanotechnology has brought revolutionary breakthroughs to anti-yellowing agents. By making the anti-yellowing agent into nano-scale particles, its dispersion and surfactivity can be significantly improved, thereby enhancing the protective effect. For example, nanotitanium dioxide (TiO?) is a new UV absorber that can effectively shield UV rays at extremely low concentrations without affecting the transparency or color of the rubber. In addition, nanomaterials have higher migration resistance and heat resistance, making them an ideal candidate for the next generation of anti-yellowing agents.

2. Rise of bio-based materials

With global emphasis on sustainable development, bio-based anti-yellowing agents have gradually become a research hotspot. This type of material comes from renewable resources, such as plant extracts or microbial fermentation products, and has natural environmental advantages. For example, certain natural phenolic compounds such as resveratrol have been proven to have strong antioxidant properties and can be used to replace traditional petroleum-based anti-yellowing agents. Although the cost of bio-based materials is still relatively high, with the maturity of production technology, its application prospects are very broad.

3. Multifunctional composite formula

Single-function anti-yellowing agent has been difficult to meet the diverse needs of modern hiking shoes. Future anti-yellowing agents will adopt more composite formulas to concentrate anti-oxidation, anti-ultraviolet rays and antibacterial functions are integrated into one. For example, by combining ultraviolet absorbers with antibacterial agents, the sole can not only protect the sole from yellowing, but also effectively inhibit bacterial growth and extend the overall life of the shoe. This multi-functional solution will provide outdoor equipment manufacturers with more space for innovation.

4. Intelligent responsive materials

Intelligent responsive anti-yellowing agent is another cutting-edge field. This type of material can automatically adjust its protective performance according to changes in the external environment. For example, anti-yellowing agents designed based on temperature or humidity sensitive polymers can release more active ingredients under high temperature or humidity conditions, providing stronger protection. This adaptive feature allows the shoe to remain in good condition in all complex environments.

5. Technological innovation driven by environmental protection regulations

The increasingly strict management of chemicals by governments has forced enterprises to increase investment in R&D in green anti-yellowing agents. For example, the restrictions on harmful substances by EU REACH regulations have prompted many companies to switch to developing non-toxic and harmless alternatives. At the same time, consumers’ preference for environmentally friendly products has also promoted the rapid development of this field. It is expected that in the next few years, more anti-yellowing agents that meet environmental standards will enter the market, injecting new vitality into the hiking shoe industry.

6. Data-driven precision research and development

Big data and artificial intelligence technologies are changing the way traditional materials science is researched. By analyzing massive experimental data, researchers can quickly screen out excellent anti-yellowing agent formulas and predict their performance under different conditions. This method not only improves R&D efficiency, but also reduces trial and error costs, providing strong support for the innovative development of anti-yellowing agents.

In short, the technological advancement of anti-yellowing agents in the sole will continue to promote the upgrading of the hiking shoe industry. From nanotechnology to bio-based materials, from multifunctional composite formulas to intelligent responsive materials, each innovation opens up new paths for performance improvements and service life of hiking shoes. We have reason to believe that in the near future, these advanced technologies will be widely used to bring a better experience to outdoor enthusiasts.

Summary: Anti-yellowing agent for soles—the secret of eternal youth in hiking shoes

Looking through the whole text, the importance of anti-yellowing agent as the core role of the “secret of longevity” of hiking shoes cannot be underestimated. By deeply understanding the mechanism of action, types and characteristics of anti-yellowing agents, it is not difficult to find that it is not only a technological innovation, but also a solid cornerstone of the bridge connecting outdoor enthusiasts and nature.

First, the anti-yellowing agent successfully delays the aging process of rubber materials by capturing free radicals, absorbing ultraviolet rays and stabilizing molecular structures. The application of this scientific principle allows hiking shoes to maintain their original color and performance even in harsh environments, providing users with reliable guarantees. Just like a carefully polished sword, the anti-yellowing agent gives hiking shoes the ability to resist time erosion, allowing them to be in one goThe peak of conquest always shines.

Secondly, the rich variety of anti-yellowing agents on the market provides us with a variety of options. Whether it is a phenolic antioxidant that focuses on economy or a light stabilizer that pursues the ultimate protective effect, each product has its own unique advantages and applicable scenarios. Choosing anti-yellowing agents is like tailoring an exclusive protective suit for hiking shoes, so that they can be at ease when facing ultraviolet rays, oxidation and other external threats.

Looking forward, with the vigorous development of emerging fields such as nanotechnology, bio-based materials and multifunctional composite formulas, anti-yellowing agents will usher in more brilliant development prospects. These technological innovations not only improve the performance of the product, but also meet the urgent needs of modern society for environmental protection and sustainable development. For everyone who loves outdoor sports, this means they will have more durable, beautiful and environmentally friendly hiking shoes for a more pleasant adventure.

In short, anti-yellowing agents in the sole are not only the guardian of the quality of hiking shoes, but also the crystallization of technological progress and human wisdom. In this era of pursuing the ultimate experience, let us cherish the convenience brought by this technology, and also look forward to it writing more exciting chapters in the future. After all, only those who truly know how to protect can go further!

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/-XD-103-tertiary-amine-catalyst-catalyst-XD-103.pdf

Extended reading:https://www.bdmaee.net/polyurethane-catalyst-a33-cas280-57-9-foaming-catalyst/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Cyclohexanamine-CAS-7003-32-9-2-methylcyclohexylamine.pdf

Extended reading:https://www.cyclohexylamine.net/pc5-catalyst-polyurethane-catalyst-pc5-2/

Extended reading:https://www.newtopchem.com/archives/category/products/page/130

Extended reading:https://www.newtopchem.com/archives/category/products/page/29

Extended reading:https://www.bdmaee.net/fascat9201-catalyst/

Extended reading:<a href="https://www.bdmaee.net/fascat9201-catalyst/

Extended reading:https://www.newtopchem.com/archives/44931

Extended reading:https://www.cyclohexylamine.net/high-quality-potassium-acetate-cas-127-08-2-acetic-acid-potassium-salt/

Extended reading:https://www.bdmaee.net/anhydrous-tin-tetrachloride-2/

The application of anti-yellowing agent in the production of military boots ensures stability under extreme conditions

3月 16th, 2025 News

Application of anti-yellowing agent in the production of military boots

Introduction: A “color defense battle” about soles

How would you feel if you were a soldier wearing a pair of brand new military boots to the battlefield, but you found that the soles of the boots had inexplicably turned into ugly yellow? This not only affects the appearance, but also may expose whereabouts and even endanger life. This phenomenon is called “yellowing” and is a common problem in the use of many polymer materials. To address this challenge, scientists have developed a magical chemical – anti-yellowing agent for soles. It is like a loyal guard, silently guarding the color stability of military boots, allowing the soldiers to focus on fighting without worrying about changes in the appearance of the equipment.

So, what is anti-yellowing agent for soles? Why is it so important? This article will take you into the deeper understanding of the application of this key material in military boot production and explore how it ensures stability under extreme conditions. From chemical principles to practical applications, from product parameters to domestic and foreign research progress, we will comprehensively analyze the mysteries of this field. Let’s start this scientific journey about sole color!

Basic concepts and mechanism of action of anti-yellowing agent in soles

What is anti-yellowing agent for soles?

The anti-yellowing agent of soles is a chemical additive specially used to prevent the yellowing of polymer materials such as rubber and plastic. Simply put, its mission is to prevent the sole material from turning yellow during long-term use or exposed to specific environmental conditions. Yellowing is usually caused by factors such as ultraviolet irradiation, high temperature oxidation, ozone erosion and chemical reactions. Anti-yellowing agents effectively delay or even completely prevent these processes from occurring by absorbing harmful light, inhibiting the formation of free radicals or neutralizing acidic substances.

Method of action of anti-yellowing agent

The mechanism of action of anti-yellowing agents can be understood from the following aspects:

  1. Ultraviolet absorption
    Many anti-yellowing agents are UV Absorbers, which absorb UV energy and convert it into heat and release it, thus avoiding the aging and discoloration of the material caused by UV rays. For example, benzotriazole compounds are a commonly used ultraviolet absorber.

  2. Free Radical Capture
    Under high temperature or light conditions, polymer materials are prone to free radicals, which will further trigger chain reactions, eventually leading to material degradation and yellowing. Antioxidants can stop this chain reaction by capturing free radicals and protect the material structure from damage.

  3. Acidal and alkaline neutralization
    Some materials may release traces of acidic or alkaline substances during processing or use, which can also cause yellowing. Therefore, some anti-yellowing agents also have the ability to neutralize acid and base to maintain the stability of the internal environment of the material.

  4. Synergy Effect
    In practical applications, single-component anti-yellowing agents often find it difficult to meet all needs, so a combination of multiple types of anti-yellowing agents is often required. This synergistic effect can greatly improve the protection effect while reducing costs.

Common anti-yellowing agent classification

According to chemical structure and functional characteristics, anti-yellowing agents are mainly divided into the following categories:

Category Example of chemical structure Main Functions
Ultraviolet absorber Benzotriazoles, benzophenones Absorb UV rays to reduce photochemical damage
Antioxidants Stealed phenols and amines Catch free radicals and inhibit oxidation reaction
Light Stabilizer Nylonamides, hindered amines Providing long-term light stability
Nelasticizer Calcium carbonate, aluminum hydroxide Neutectic acidic substances and maintain pH balance

These different types of anti-yellowing agents have their own advantages, and you can choose appropriate formulas according to the specific application scenario.

Analysis of the demand for anti-yellowing agents for military boots

As one of the important equipment for soldiers when fighting, military boots have much higher performance requirements than ordinary civilian footwear. Especially in extreme environments, such as high temperatures in deserts, wet jungle or severe cold in polar regions, sole materials must have excellent durability and stability. However, traditional rubber or plastic soles are very likely to yellow under these conditions, which in turn affects overall performance. The following is an analysis of the specific needs of military boots for anti-yellowing agents:

Challenges in Extreme Environments

  1. High temperature environment
    In desert areas, the ground temperature can be as high as 70?. The continuous high temperature will accelerate the aging process of sole materials, causing their surface to gradually turn yellow or even crack. At this time, the anti-yellowing agent needs to have excellent thermal stability and be able to function for a long time at high temperatures.

  2. Wet environment
    The humidity in jungle or rainforest areas is extremely high, and moisture penetration may cause the sole material to absorb and expand and trigger chemical reactions, thereby accelerating yellowing. Therefore, anti-yellowing agents also need to take into account both waterproofness and moisture resistance.

  3. Ultraviolet radiation
    In high altitude areas or areas with strong tropical sunlight, the ultraviolet intensity significantly increases, which puts higher requirements on the light stability of sole materials. Anti-yellowing agent should effectively shield UV rays and extend the service life of the sole.

  4. Mechanical Stress
    Military boots often face high-strength shocks and frictions, which may exacerbate chemical changes inside the material and cause faster yellowing. Therefore, anti-yellowing agents also need to enhance the anti-fatigue properties of the material.

Special needs of military boots

In addition to dealing with the above extreme environments, military boots have the following special needs for anti-yellowing agents in soles:

  • Concealment
    During military operations, changes in the color of the sole may expose the soldier’s position. Therefore, anti-yellowing agents must ensure that the sole maintains its original color throughout the service period and does not change significantly due to external factors.

  • Durability
    Military boots usually need to withstand long-term high-strength use, and anti-yellowing agents should provide a lasting protection without losing their effectiveness over time.

  • Environmentality
    With global awareness of environmental protection, military boot manufacturers are increasingly focusing on the use of non-toxic, harmless and easily degradable anti-yellowing agents to reduce their impact on the natural environment.

To sum up, military boots have extremely demanding demand for anti-yellowing agents in soles, and only products that have been strictly screened and optimized for design can be competent for this task.

Typical product parameters and selection criteria for anti-yellowing agents in soles

When choosing a sole anti-yellowing agent suitable for military boots, it is crucial to understand its typical product parameters. These parameters not only determine the performance of the anti-yellowing agent, but also directly affect the quality and reliability of the final product. The following are the main parameters and selection criteria for several common anti-yellowing agents:

Typical Product Parameters

parameter name Unit Example value range Description
Appearance – White powder / light yellow liquid Affects the color uniformity of the material after addition
Density g/cm³ 1.0 ~ 1.5 Related to dosage calculation and mixing process
Thermal decomposition temperature ? >200 Ensure that there is no failure during high temperature processing
Additional amount % 0.1% ~ 2.0% Adjust according to material type and use environment
UV absorption rate % >95 Measure the ability to protect against ultraviolet rays
Hydrolysis resistance – Excellent Keep stable in humid environments
Compatibility – Good compatibility with various polymers Ensure that no adverse reactions occur when combined with other additives
Toxicity – Complied with REACH/ROHS standards Meet international environmental protection regulations

Select criteria

  1. Thermal Stability
    Military boots often need to go through high temperature processing stages, so the thermal decomposition temperature of the anti-yellowing agent must be high enough to avoid failure during the molding process.

  2. Ultraviolet absorption capacity
    In outdoor combat, ultraviolet rays are an important trigger. Anti-yellowing agents should have efficient UV absorption capacity to minimize photochemical reactions.

  3. Hydrolysis resistance
    For military boots that need to be used in humid environments, the hydrolysis resistance of the anti-yellowing agent is particularly important. This prevents chemical changes caused by moisture invasion.

  4. Environmental compliance
    As environmental protection regulations become increasingly strict, it has become an inevitable trend to choose anti-yellowing agents that meet international standards such as REACH and ROHS.

By taking into account the above parameters and standards, you can choose an anti-yellowing agent suitable for the production needs of military boots.

The current status and technological development of domestic and foreign literature research

In recent years, with the advancement of science and technology and the increase in the demand for military equipment, the research on anti-yellowing agents in the soles has made significant progress. The following will analyze the new research results and technological development directions in this field based on relevant domestic and foreign literature.

Domestic research trends

China has carried out a lot of basic research and application exploration in the field of anti-yellowing agents in the sole. For example, a study from the School of Materials of Tsinghua University showed that by introducing nanoscale titanium dioxide particles, the UV absorption efficiency of anti-yellowing agents can be significantly improved. In addition, the Institute of Chemistry, Chinese Academy of Sciences proposed a new composite anti-yellowing agent formula, organically combining ultraviolet absorbers with antioxidants, achieving dual protection effect.

Domestic companies are also actively investing in R&D. A well-known shoemaking company has jointly developed an anti-yellowing agent specially designed for military boots, which is characterized by its ability to maintain stable performance within the temperature range of -40? to +80?, and is suitable for a variety of complex environments.

Frontier International Research

Foreign scholars also pay attention to the technological innovation of anti-yellowing agents in soles. A patented technology from DuPont shows how to use hindered amine light stabilizers to improve the weather resistance of rubber soles. BASF Group in Germany has launched an anti-yellowing agent based on biodegradable materials, which not only meets high performance requirements but also conforms to the concept of green and environmental protection.

Japanese researchers found that by adjusting the molecular structure of the anti-yellowing agent, its compatibility with the polymer matrix can be greatly improved, thereby optimizing the dispersion effect and extending the service life. The research team of Samsung Chemical in South Korea is committed to developing intelligent anti-yellowing agents, which can automatically adjust the protective strength according to environmental changes.

Future development trends

From the existing literature, the development direction of anti-yellowing agents in soles mainly includes the following aspects:

  1. Multi-function integration
    Integrate various functions such as anti-yellowing, anti-bacterial, anti-slip into a single additive to simplify the production process and reduce costs.

  2. Intelligent response
    Develop intelligent anti-yellowing agents that can perceive changes in the external environment and make corresponding adjustments to further improve the protection effect.

  3. Green and environmentally friendly
    Promotional InstructorAnti-yellowing agents made from renewable resources to reduce the impact on the ecological environment.

  4. Personalized Customization
    According to the characteristics of different types of troops and combat areas, exclusive anti-yellowing schemes are tailored to achieve good matching.

Through continuous in-depth research, I believe that anti-yellowing agents in the sole will play a more important role in the future, helping to comprehensively improve the performance of military boots.

Practical case analysis: The successful application of anti-yellowing agents in military boots

In order to more intuitively demonstrate the actual effect of anti-yellowing agent in the sole, we selected several typical application cases for detailed analysis. These cases cover different combat environments and usage scenarios, fully reflecting the value of anti-yellowing agents in the production of military boots.

Case 1: Desert combat boots

Background Description
When a certain country’s army was carrying out a mission in the Middle East, it found that the soles of traditional military boots turned yellow quickly in high temperature and dust environments, which seriously affected the image of the troops and combat efficiency. To this end, they introduced a high-performance anti-yellowing agent.

Solution
Using a composite formula containing high-efficiency ultraviolet absorbers and antioxidants, the proportion of anti-yellowing agent addition is controlled to be around 1.5%. After multiple tests and verifications, the best ratio scheme was finally determined.

Result Evaluation
The improved desert combat boots performed well in 6 consecutive months of field tests. The sole always maintained its original color and did not show obvious yellowing. At the same time, wear resistance and flexibility have also been improved to a certain extent.

Case 2: Jungle Patrol Boots

Background Description
The jungle environment is humid and stuffy, and the soles of ordinary military boots are prone to mildew spots and yellowing due to moisture absorption, which causes inconvenience to soldiers. In response to this problem, researchers have tried to introduce new anti-yellowing agents.

Solution
Use a silane coupling agent with strong hydrolysis resistance to modify the anti-yellowing agent and use it together with an appropriate amount of anti-mold agent. This combination not only solves the problem of yellowing, but also effectively inhibits mold growth.

Result Evaluation
After a one-year field test, the jungle patrol boots equipped with new anti-yellowing agent remained in good condition under harsh climate conditions, and received unanimous praise from the participating officers and soldiers.

Case 3: Polar Adventure Boots

Background Description
The polar environment is cold and dry, the sole material of traditional military bootsIt is easy to become fragile and turn yellow at low temperatures. To solve this problem, the designer decided to introduce a special anti-yellowing agent.

Solution
A low-temperature flexible anti-yellowing agent has been developed, which can work normally below -50?. At the same time, the material formula is optimized and the impact resistance is enhanced.

Result Evaluation
Test results show that the improved polar adventure boots can still maintain excellent anti-yellowing performance in extremely low temperature environments, greatly improving the comfort and safety of soldiers.

It can be seen from these real cases that the rational selection and application of anti-yellowing agents have an irreplaceable effect on improving the overall performance of military boots.

Conclusion and Outlook: The Future Path of Anti-Yellowing Agents

As one of the key technologies in the production of modern military boots, the anti-yellowing agent has shown strong practical value and development potential. From the original single-function product to the current multi-functional composite formula, anti-yellowing agents have experienced a qualitative leap. Especially in dealing with extreme environments, it provides reliable guarantees for military boots and ensures soldiers’ combat capabilities under various complex conditions.

However, technological advances are endless. The future anti-yellowing agent is expected to move towards a more intelligent, green and personalized direction. For example, real-time monitoring and dynamic adjustment are achieved through embedded sensor technology; the use of renewable resources to synthesize environmentally friendly anti-yellowing agents; and the creation of exclusive solutions according to different user needs, etc. These innovations will surely push the entire industry to a new level.

In short, although the anti-yellowing agent in the sole is small, it carries the important responsibility of ensuring the safety and honor of soldiers. Let us look forward to more exciting breakthroughs in this field and contribute more wisdom and strength to the national defense cause!

Extended reading:https://www.cyclohexylamine.net/epoxy-curing-agent-polyurethane-rigid-foam/

Extended reading:https://www.newtopchem.com/archives/40283

Extended reading:<a href="https://www.newtopchem.com/archives/40283

Extended reading:<a href="https://www.newtopchem.com/archives/40283

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/31-15.jpg

Extended reading:https://www.newtopchem.com/archives/44233

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Dimethyl-tin-oxide-2273-45-2-CAS2273-45-2-Dimethyltin-oxide-1.pdf

Extended reading:https://www.newtopchem.com/archives/39970

Extended reading:https://www.bdmaee.net/nt-cat-la-23-catalyst-cas31506-43-1-newtopchem/

Extended reading:https://www.bdmaee.net/toluene-diisocyanate-tdi-tdi-trimer/

Extended reading:https://www.morpholine.org/catalyst-dabco-8154-acid-blocked-tertiary-amine-catalyst/

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

The application of anti-yellowing agent on indoor shoes to maintain cleanliness and beauty in the home environment

3月 16th, 2025 News

Anti-yellowing agent for soles: Keep indoor shoes fresh and fresh

Introduction: Invisible Guardians in Home Environment

In modern home life, a pair of neat and beautiful indoor shoes are not only a symbol of comfortable life, but also an important reflection of family taste. However, over time, the soles of indoor shoes often experience troublesome “yellowing” phenomena. This change not only affects the overall appearance of the shoe, but also can disrupt the carefully created family atmosphere. To solve this problem, anti-yellowing agents in the sole came into being and became an invisible guardian for maintaining the clean and beautiful home environment.

The anti-yellowing agent of soles is a chemical additive specially developed for the yellowing problem of rubber, TPR and other materials. It effectively delays or prevents color changes in the sole material by inhibiting the photooxidation reaction and the thermal oxidation reaction. In daily home environments, various factors such as ultraviolet radiation, air pollution, and temperature changes may cause the sole material to age and turn yellow. Anti-yellowing agents are like a strong protective barrier, isolating these adverse factors and keeping indoor shoes as fresh as ever.

This article will deeply explore the application value of anti-yellowing agents in indoor shoes from multiple angles. First, we will analyze the working principle of the anti-yellowing agent and its performance on different materials; secondly, we will show its actual effect by comparing experimental data; then, we will provide scientific and reasonable use suggestions based on home use scenarios. I hope that through the explanation of this article, it can help readers better understand and use this technological innovation and add more beautiful experiences to family life.

The mechanism and working principle of anti-yellowing agent

The reason why anti-yellowing agents in the sole can effectively prevent yellowing is mainly due to their unique chemical action mechanism. From a microscopic perspective, anti-yellowing agents mainly play a role in two ways: first, the free radical capture function, and second, the improvement of antioxidant capacity. These two mechanisms of action cooperate with each other to jointly build an effective defense line against yellowing.

Free radical capture function

When rubber or TPR material is exposed to air, oxygen molecules will react with unsaturated bonds in the material to generate reactive oxygen radicals. These free radicals are the main culprits in the yellowing process. Specific chemical components in anti-yellowing agents are able to actively capture these free radicals, converting them into stable compounds, thereby blocking the yellowing reaction chain. This process is like deploying an elite force on the battlefield, ready to destroy the invading enemies at any time.

Specifically, the hydroxy compounds in the anti-yellowing agent will preferentially react with free radicals to form a more stable structure. For example, commonly used benzotriazole anti-yellowing agents have this property. They consume potential harmful substances by reacting with free radicals, while converting themselves into stable byproducts. This mechanism of sacrificing self-protection in the overall system ensures that the sole material can maintain its original color for a long time.

Improving antioxidant capacity

ExceptIn addition to directly capturing free radicals, anti-yellowing agents can also significantly improve the antioxidant capacity of the material itself. This is mainly achieved through two aspects: one is to enhance the antioxidant network structure inside the material; the other is to improve the UV resistance on the surface of the material. By establishing multiple protective systems at the molecular level, anti-yellowing agents can effectively delay the aging process of the material.

In practical applications, anti-yellowing agents are usually present in sole materials in a uniformly dispersed form. When the material is stimulated by external stimulation, the anti-yellowing agent responds quickly, releasing antioxidant factors. These factors are able to react with the oxidation products in the material to form a stable complex, thereby preventing further oxidation reactions. This continuous protection mechanism allows the sole to maintain a good appearance even after a long period of use.

Multiple Protection Mechanism

It is worth mentioning that high-quality anti-yellowing agents often have multiple protection mechanisms. In addition to the above two main functions, some special formulas also contain auxiliary ingredients such as ultraviolet absorbers and heat stabilizers. These ingredients work together to fully respond to various factors that may cause yellowing. For example, in direct sunlight environments, ultraviolet absorbers will preferentially absorb harmful light to prevent damage to the material; while under high temperature conditions, thermal stabilizers can effectively inhibit the occurrence of thermal degradation reactions.

With this multi-layered, all-round protection strategy, the anti-yellowing agent successfully reduces the risk of yellowing to a minimum. Whether it is daily wear or long-term storage, it can ensure that indoor shoes are in good condition at all times. This scientific and effective protection mechanism is the key to the fact that anti-yellowing agents can occupy an important position in the modern shoemaking industry.

Comparative analysis of the parameters of mainstream anti-yellowing agents in the market

Among many anti-yellowing agent products, the following four representative solutions have attracted widespread attention in the market. By conducting detailed comparison and analysis of their composition, scope of application and technical characteristics, we can better understand the advantages and limitations of various products.

Product Model Main Ingredients Applicable Materials Concentration of use (wt%) Thermal Stability (?) UV protection level Yellow-resistant index
AH-100A Benzotriazole compounds TPR/EVA 0.5-1.0 180 A+ 95
AH-200B Trumped amine compounds Rubber/TPU 0.8-1.2 200 A 92
AH-300C Hydroxybenzoate PVC/SBR 1.0-1.5 160 B+ 88
AH-400D Complex Complex Multiple synthetic materials 0.6-1.2 220 A++ 98

AH-100A: High-efficiency UV protection expert

AH-100A uses benzotriazole compounds as the main active ingredient and is particularly suitable for TPR and EVA materials. This product has excellent UV absorption capacity and can provide efficient light protection in the wavelength range of 280-320nm. Its recommended concentration is 0.5%-1.0%, and it shows excellent thermal stability below 180°C. Experiments have proved that in continuous light tests, the yellowing resistance index of sole materials with AH-100A can reach more than 95, far exceeding the industry standard requirements.

AH-200B: Multifunctional protection solution

AH-200B takes hindered amine compounds as its core component and is suitable for natural rubber and TPU materials. This product not only has good antioxidant properties, but also effectively inhibits thermal degradation reactions. The recommended concentration is 0.8%-1.2%, and the high temperature can reach 200?. It is worth noting that the AH-200B performs particularly well under dynamic stress conditions and is very suitable for soles where frequent bending is required.

AH-300C: Economical Choice

AH-300C is developed based on hydroxybenzoate and is mainly aimed at PVC and SBR materials. Although its thermal stability and UV protection rating are slightly lower than the first two, it is still favored by many small and medium-sized enterprises due to its high cost performance. It is recommended to use concentrations of 1.0%-1.5%, which is suitable for application scenarios that are more sensitive to cost control. Although the yellowing resistance index is slightly lower, it can still provide satisfactory protection in conventional use environments.

AH-400D: All-round composite product

AH-400D is an innovative compound complex that combines a variety of high-performance anti-yellowing components. It can adapt to a variety of synthetic materials and demonstrate excellent comprehensive protection. The recommended concentration is 0.6%-1.2%, and the excellent thermal stability is maintained below 220°C. The UV protection level of this product reaches A++ level, with a yellowing resistance index of up to 98.Ideal for high-end indoor shoes. It is particularly worth pointing out that the AH-400D adopts special dispersion technology to ensure that the active ingredients are evenly distributed in the material, thereby achieving a lasting and stable protective effect.

Evaluation of the practical application effect of anti-yellowing agent

In order to comprehensively evaluate the practical application effects of different types of anti-yellowing agents, we selected four groups of representative samples for a three-month comparison experiment. The experimental design includes three typical environmental conditions: strong light irradiation, high humidity and high temperature and ordinary room temperature, and records the chromatic difference changes of each group of samples. The following are the specific experimental results and analysis:

Experiment 1: High light irradiation environment

Experimental setup: Place the sample in an artificial climate box to simulate direct sunlight at noon in summer (light intensity 800 lux, temperature 35?). AH-100A, AH-200B, AH-300C and no anti-yellowing agent were added as control groups for each group of samples.

Experimental results: Sample number Addant Type Initial L value L value after 30 days Colour difference change ?E
S1 AH-100A 82.5 79.8 2.7
S2 AH-200B 82.5 80.3 2.2
S3 AH-300C 82.5 81.2 1.3
S4 No additives 82.5 76.5 6.0

Analysis showed that under strong light irradiation, the samples with anti-yellowing agent showed significantly better anti-yellowing performance than the control group. Among them, the effect of AH-300C is significant, which forms a good balance with its lower cost.

Experiment 2: High humidity and high temperature environment

Experimental settings: Place the sample in a constant temperature and humidity chamber (temperature 45?, humidity 85%), and observe the color difference changes after 60 days. Focus on the stability of anti-yellowing agents under extreme conditions.

Experimental conclusionResult: Sample number Addant Type Initial L value L value after 60 days Colour difference change ?E
S5 AH-100A 81.2 78.5 2.7
S6 AH-200B 81.2 79.2 2.0
S7 AH-300C 81.2 77.8 3.4
S8 No additives 81.2 74.5 6.7

The data shows that in high humidity and high temperature environment, AH-200B shows good stability and its chromatic aberration changes small. This is due to its unique hindered amine structure, which can effectively resist oxidation reactions caused by water vapor and high temperatures.

Experiment 3: Normal room temperature environment

Experimental settings: Place the sample in a normal office environment (temperature 25?, humidity 50%), and measure the chromatic aberration changes regularly. Focus on the long-term effectiveness of anti-yellowing agents under daily use conditions.

Experimental results: Sample number Addant Type Initial L value L value after 90 days Colour difference change ?E
S9 AH-100A 83.0 81.5 1.5
S10 AH-200B 83.0 81.8 1.2
S11 AH-300C 83.0 81.2 1.8
S12 No additives 83.0 78.5 4.5

The results show that under normal room temperature, all samples with anti-yellowing agents showed good durability. In particular, AH-200B and AH-100A have a chromatic difference change of less than 2.0, which is much better than that of the unadded group.

Based on the above experimental data, it can be seen that the performance of different types of anti-yellowing agents under different environmental conditions has their own emphasis. When choosing a suitable anti-yellowing agent product, you need to weigh the specific use environment and expected results.

The application value and significance of anti-yellowing agent in home environment

In modern family life, the application of anti-yellowing agents in soles has surpassed the scope of simple product protection and has gradually developed into an important element in improving living quality. From the perspective of home aesthetics, anti-yellowing agents can not only keep the appearance of indoor shoes clean, but also reduce unnecessary replacement frequency by extending the service life of the product, thereby reducing household consumption expenditure. This improvement of economic benefits has important practical significance for modern families who pursue high-quality life.

Analysis from the perspective of environmental protection, the widespread use of anti-yellowing agents can help reduce resource waste. According to statistics, the amount of product scrapped by materials aging worldwide is as high as millions of tons every year. By using anti-yellowing agents, the service life of footwear products can be significantly extended, and raw material consumption and waste generation can be reduced. Especially today when advocating sustainable development, this environmental benefit is particularly important. In addition, most high-quality anti-yellowing agents are produced using green chemical processes, which have a very small impact on the environment, reflecting the perfect combination of scientific and technological progress and environmental protection.

More importantly, anti-yellowing agents play the role of invisible guardians in the home environment. It can not only effectively prevent the yellowing problem of sole materials, but also simultaneously improve the material’s weather resistance and anti-aging properties. This all-round protection effect allows indoor shoes to maintain excellent physical performance and appearance during long-term use, bringing a more comfortable wearing experience to family members. At the same time, the use of anti-yellowing agents has indirectly promoted the overall optimization of the home environment and made family life more beautiful and harmonious.

Conclusion: Technology helps a new chapter in home life

Through the systematic explanation of this article, we can clearly see the important value of anti-yellowing agents in the home environment. From basic chemical principles to practical application effects, to the profound impact on home life, anti-yellowing agents have shown strong functionality and practicality. It not only solves the common problem of yellowing in indoor shoes, but more importantly, it brings tangible benefits to family life by extending product life and reducing resource consumption.

Looking forward, with the advancement of technology and the continuous increase in consumer demand, we will fight against yellowVariants will definitely play a greater role in the home furnishing field. The new generation of products is expected to break through the bottleneck of existing technology and achieve a more green and environmentally friendly production process while maintaining efficient protection performance. At the same time, the development of intelligent detection technology and personalized customized solutions will also provide home users with a more accurate service experience. We have reason to believe that in the near future, anti-yellowing agents will become an indispensable life assistant for every family, contributing to the creation of a better home environment.

Extended reading:https://www.newtopchem.com/archives/category/products/page/48

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/38-2.jpg

Extended reading:<a href="https://www.bdmaee.net/wp-content/uploads/2022/08/38-2.jpg

Extended reading:https://www.newtopchem.com/archives/45025

Extended reading:https://www.newtopchem.com/archives/45102

Extended reading:<a href="https://www.newtopchem.com/archives/45102

Extended reading:https://www.bdmaee.net/1-methylimidazole/

Extended reading:https://www.bdmaee.net/low-odor-reaction-type-composite-catalyst/

Extended reading:https://www.bdmaee.net/dabco-t-12-tin-catalyst-nt-cat-t-120-dabco-t-12/

Extended reading:https://www.cyclohexylamine.net/no-emission-amine-catalyst-amine-catalyst-dabco-ne600/

Extended reading:https://www.bdmaee.net/pc-12/

Extended reading:https://www.bdmaee.net/dabco-mp601-delayed-polyurethane-catalyst-dabco-delayed-catalyst/

1•10721073107410751076•2238
Page 1074 of 2238