The leader of China special amines-

Archive for the category: News

Home / News

How to enhance the appearance of electronic display screens

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: Let the electronic display shine forever

Introduction: When technology meets aesthetics

In this era of information explosion, electronic display screens have become an indispensable part of our daily lives. From smartphones to TV screens, from car navigation to outdoor billboards, various display devices are being updated at an astonishing speed. However, while pursuing higher resolution and faster refresh rates, people are also paying attention to the appearance quality of these devices – after all, no matter how powerful the functions are, they cannot be separated from pleasing external performance.

As the “face” of modern electronic products, the appearance quality of the display directly affects the user’s user experience. One of the headaches is the “yellowing” phenomenon that screen surface materials have been used for a long time. This color change caused by ultraviolet rays, high temperatures and oxidation not only destroys the original aesthetics of the product, but may also affect its optical properties. Just imagine, a originally crystal clear screen gradually becomes cloudy and yellow, just like a delicate face eroded by time, which is really a pity.

To solve this problem, scientists have developed a magical material – polyurethane thermoplastic elastomer (TPE) anti-yellowing agent. It is like an invisible beautician, which can effectively delay or even prevent the aging process of the surface materials of the display screen, so that it always remains fresh and bright. This article will explore the characteristics and applications of this material in depth, and analyze its value in the field of electronic display screens based on actual cases.

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

(I) What is polyurethane TPE?

Thermoplastic Elastomer (TPE) is a polymer material that combines rubber elasticity and plastic processability. It consists of hard and soft segments, and different mechanical and physical properties can be achieved by adjusting the ratio of the two. Polyurethane TPE is widely used in automotive parts, medical devices, consumer electronic products and other fields due to its excellent wear resistance, flexibility and chemical corrosion resistance.

However, ordinary polyurethane TPE is prone to degradation reactions when exposed to ultraviolet light or high temperature environments for a long time, causing material to discolor or even fail. To solve this problem, the researchers developed a functional additive specifically for anti-yellowing needs, namely polyurethane TPE anti-yellowing agent.

(II) Mechanism of action of anti-yellowing agent

The core task of anti-yellowing agents is to inhibit the formation of free radicals in the material, thereby preventing discoloration caused by oxidation or photochemical reactions. Specifically, it mainly works in the following ways:

  1. Absorb UV rays
    anti-The high-efficiency UV absorber in yellowing agents can capture short-wave ultraviolet rays in sunlight, converting them into harmless thermal energy and releasing them, avoiding the damage to the molecular structure of the material by ultraviolet rays.

  2. Catch free radicals
    Under light conditions, strongly active free radicals may be generated inside the material. The antioxidant components in the anti-yellowing agent can capture these free radicals in a timely manner, interrupt the chain reaction, and protect the material from further damage.

  3. Stable molecular structure
    Certain anti-yellowing agents can also enhance the anti-aging ability of material molecules by forming stable chemical bonds, making them more durable.

  4. Shield environmental factors
    Some anti-yellowing agents can also act as a barrier, reducing the impact of external factors such as moisture and oxygen on the material, thereby extending its service life.

2. Key parameters and performance characteristics of polyurethane TPE anti-yellowing agent

In order to better understand the actual effect of polyurethane TPE anti-yellowing agent, we need to conduct a detailed analysis of its key parameters. The following are several important technical indicators and their significance:

parameter name Unit Meaning Typical value range
UV absorption rate % Measure the absorption efficiency of anti-yellowing agents on ultraviolet rays ?95%
Initial Yellowness Index (YI) – Describe the degree of yellowness in the initial state of the material ?2.0
Accelerating aging test time hours Simulate anti-aging ability under extreme conditions ?500 hours
Thermal Stability ? The ability of materials to maintain their performance in high temperature environments 180-220?
Chemical resistance – Resistance to common solvents, detergents and other chemicals High
Density g/cm³ Mass to volume ratio of material 1.1-1.3

(III) Excellent performance advantages

Compared with traditional materials, polyurethane TPE anti-yellowing agent has the following significant advantages:

  1. Durable and durable
    Specially treated TPE materials can maintain stable optical properties over a period of several years and will not fade or deform easily even in harsh environments.

  2. Environmentally friendly
    The new generation of anti-yellowing agents are made of renewable resources, do not contain any harmful substances, meet international environmental standards, and truly achieve green manufacturing.

  3. Easy to process
    TPE materials have good fluidity and can be formed through injection molding, extrusion and other processes to meet the needs of different application scenarios.

  4. Cost-effective
    Despite the high initial investment, its long service life and low maintenance costs make the overall economic benefits very considerable.

3. Application of polyurethane TPE anti-yellowing agent in electronic display screens

With the popularity of portable devices such as smartphones and tablets, consumers have increasingly demanded on the appearance of the screen. A flawless screen can not only enhance the visual experience, but also demonstrate the high-end quality of the product. Therefore, how to ensure that the screen remains fresh during long-term use has become an urgent problem that major manufacturers need to solve.

(I) Protecting Screen Cover

In touch screen structures, cover glass usually needs to be covered with a transparent protective film to increase scratch resistance and impact resistance. If ordinary materials are used, this protective film may gradually turn yellow over time, affecting the overall appearance. Using polyurethane TPE containing anti-yellowing agent can completely eliminate this hidden danger and keep the screen crystal clear at all times.

(II) Optimize border design

In addition to the screen itself, the bezel is also one of the important factors that determine the appearance of the product. Many high-end models have begun to adopt an integrated metal frame design, but plastic is still required in some parts. At this time, the TPE material with the addition of anti-yellowing agent comes in handy. It not only provides excellent wear resistance and corrosion resistance, but also effectively avoids color changes caused by direct sunlight, ensuring the overall body is harmonious and unified.

(III) Improve the texture of the back plate

For some non-full glass back panel settingsPolyurethane TPE anti-yellowing agent is also very useful. For example, a flagship mobile phone launched by a well-known brand uses a composite back panel with texture effects, which not only takes into account the light and thin feel but also has a fashionable atmosphere. All of this is due to the strong protection ability of the anti-yellowing agent to the material, which can maintain its initial bright color even after long-term use.

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

In recent years, many breakthroughs have been made in the research on polyurethane TPE anti-yellowing agents. According to a review article published in Advanced Materials magazine, developed countries in Europe and the United States have taken the lead in applying this technology to multiple high-end fields such as aerospace, medical and health. At the same time, scientific research teams in Asia are also actively exploring low-cost and high-performance solutions, striving to narrow the gap with the world’s leading level.

(I) Direction of technological innovation

  1. Multifunctional composite
    Combining anti-yellowing agents with other functional additives, new materials with antibacterial and self-healing properties are developed.

  2. Nanoscale modification technology
    The dispersion uniformity and stability of the anti-yellowing agent are used to improve the protection effect.

  3. Intelligent response mechanism
    Design anti-yellowing systems that can automatically activate under certain conditions, such as thermal expansion or humidity contraction.

(II) Market prospects

According to authoritative institutions, the global polyurethane TPE anti-yellowing agent market size will grow at an average annual rate of 8% in the next five years, and is expected to reach billions of dollars by 2027. Especially in the consumer electronics industry, with the popularization of 5G networks and the development of IoT technology, the demand for high-quality display devices will continue to rise, bringing huge business opportunities to related companies.

5. Conclusion: Light up the infinite possibilities of the future

As a classic song sang: “You are my lifelong treasure, and I am willing to protect your smile for the rest of my life.” For electronic displays, polyurethane TPE anti-yellowing agent is such a loyal guardian, silently adding brilliance to it and delaying aging. I believe that in the near future, with the continuous advancement of science and technology, we will witness more miracles and jointly usher in a more colorful new era of digital!

Extended reading:https://www.bdmaee.net/dioctyldichlorotin-95/

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

Extended reading:https://www.bdmaee.net/dabco-33-s-catalyst-cas280-57-9-evonik-germany/

Extended reading:https://www.newtopchem.com/archives/category/products/page/124

Extended reading:https://www.bdmaee.net/n-3-dimethyl-amino-propyl-n-n-diisopropanolamine/

Extended reading:https://www.bdmaee.net/spraying-composite-amine-catalyst/

Extended reading:https://www.bdmaee.net/potassium-neodecanoate-2/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/102-7.jpg

Extended reading:https://www.newtopchem.com/archives/39412

Extended reading:https://www.bdmaee.net/wp-content/uploads/2021/05/138-3.jpg

Special application of polyurethane TPE anti-yellowing agent in medical equipment

3月 16th, 2025 News

Polyurethane TPE anti-yellowing agent: “Invisible Guardian” in medical equipment

In the modern medical field, various precision medical devices and consumables have become right-hand assistants in the hands of doctors. However, behind these seemingly ordinary plastic products is a little-known secret – they need a special “protective cloak” to resist the invasion of the external environment, which is a polyurethane thermoplastic elastomer (TPE) anti-yellowing agent. Today, let’s uncover the mystery of this “Invisible Guardian” and see how it plays an important role in medical equipment.

What is polyurethane TPE anti-yellowing agent?

Polyurethane TPE is a high-performance material that combines rubber elasticity and plastic processability, and is widely used in various fields from automotive parts to electronic equipment. However, when these materials are exposed to ultraviolet light, high temperatures or chemicals, oxidation reactions are easily occurring, causing yellowing of the surface or even aging and cracking. To solve this problem, scientists invented anti-yellowing agents, a chemical additive that can effectively delay material discoloration.

Specifically, polyurethane TPE anti-yellowing agents are compounds that protect the true color of the material by absorbing ultraviolet rays or inhibiting the formation of free radicals. It can be divided into two categories: light stabilizers and antioxidants. The former mainly converts it into harmless heat energy by absorbing ultraviolet energy; the latter prevents the chain reaction from occurring by capturing free radicals, thereby extending the service life of the material.

Special needs in medical equipment

The requirements for materials of medical equipment are much higher than those of ordinary industrial products. First, due to direct contact with the human body, all materials must be biocompatible and non-toxic. Secondly, many medical equipment requires long-term storage or repeated disinfection, so the materials are required to have excellent weather resistance and anti-aging properties. In addition, transparency and aesthetics are also factors that cannot be ignored, especially in some infusion devices, syringes and other products that require observation of the flow of internal liquids.

Polyurethane TPE anti-yellowing agent is the ideal choice to meet the above needs. It not only effectively prevents the material from discoloring due to light or high temperature, but also maintains the original flexibility and transparency of the material, while also complying with strict medical standards. It can be said that it is an indispensable part of the medical equipment manufacturing process.

Next, we will explore in-depth the specific action mechanism, product parameters and research progress of polyurethane TPE anti-yellowing agent to help everyone understand this magical material more comprehensively.

The mechanism of action of anti-yellowing agent: scientific principles and practical applications

To understand why polyurethane TPE anti-yellowing agent is so important, let’s first look at its mechanism of action. Simply put, anti-yellowing agents are like a loyal “sentinel”, always alert to the “enemy” in the external environment that may threaten the health of the material.

Light stabilizer: “Sunlight that absorbs ultraviolet raysShield”

Light stabilizers are one of the important components of anti-yellowing agents, and their main task is to resist the damage to the material by ultraviolet rays. Although ultraviolet rays are invisible and intangible, they are one of the main culprits in the aging of polymer materials. When ultraviolet rays on polyurethane TPE, it will stimulate chemical bonds in the molecule to break and form free radicals, which will trigger a series of chain reactions, which will eventually cause the material to turn yellow, brittle or even crack.

The working principle of light stabilizers is similar to a “sun umbrella”. It can avoid the direct effect of UV rays on the material itself by absorbing the energy of UV and converting it into harmless heat energy. Depending on the chemical structure, light stabilizers can be divided into the following categories:

  • Ultraviolet absorbers: This type of compound can selectively absorb ultraviolet rays in a specific wavelength range and dissipate the absorbed energy in the form of heat. For example, benzotriazoles and benzophenones are two common UV absorbers.
  • Quicken: This type of substance quickly reduces its energy level by binding to excited molecules, thereby interrupting the process of photochemical reactions.

Table 1 shows a comparison of the characteristics of several common light stabilizers:

Category Chemical structure Main Functions Pros
Ultraviolet absorber Benzotriazoles Absorbs ultraviolet rays and converts them into thermal energy Efficient, durable, wide application scope
Benzophenone Absorbs ultraviolet rays and disperse energy Low cost, suitable for general use
Quicking agent Trumped amines Interrupt the photochemical reaction Strong compatibility with multiple materials

Antioxidants: “scavenger” that captures free radicals

In addition to ultraviolet rays, oxygen is also another important factor in the yellowing of polyurethane TPE. Under high temperature or mechanical stress conditions, oxygen is prone to react with the polymer chains in the material to generate very active free radicals. These free radicals will further trigger more molecular chain breaks, forming the so-called “radical chain reaction”, which will eventually lead to the material aging and deterioration.

Antioxidants act like an efficient “scavenger” who is specifically responsible for capturing and removing these harmful free radicals. According toDifferent methods of use, antioxidants can be divided into the following two categories:

  • Main antioxidant: Stops the chain reaction by providing hydrogen atoms or other electrons to free radicals, causing them to become inactive. Phenol compounds are one of the commonly used main antioxidants.
  • Auxiliary antioxidants: Indirectly reduce the amount of free radicals generated by decomposing by-products such as peroxides. Thioesters and phosphides fall into this category.

Table 2 lists the performance characteristics of several typical antioxidants:

Category Chemical structure Main Functions Pros
Main Antioxidant Phenol compounds Catch free radicals Excellent effect, suitable for many scenarios
Auxiliary Antioxidants Thioesters Decomposition of peroxides Improve overall stability
Physteres Reduce by-product generation Enhance synergistic effects

Double guarantees in practical applications

In practical applications, light stabilizers and antioxidants often work together to provide comprehensive protection for polyurethane TPE. For example, in some high-end medical equipment, UV absorbers and hindered amine quenchers may be added simultaneously to ensure that the material maintains good appearance and physical properties after long-term use. In some occasions where high-temperature disinfection is required, high-efficiency antioxidants will be selected to resist the accelerated aging process under high-temperature environments.

By reasonably matching different types of anti-yellowing agents, manufacturers can customize appropriate solutions according to specific application scenarios, thereby maximizing the service life of the product while ensuring consistent high-quality performance.

Product parameters and technical indicators of polyurethane TPE anti-yellowing agent

In order to better understand the actual performance of polyurethane TPE anti-yellowing agent, we need to pay attention to its key technical parameters and testing methods. These data not only reflect the quality level of the product, but also provide users with a basic basis for selection and evaluation.

Core Technical Parameters

1. Add ratio

The amount of the anti-yellowing agent is usually between 0.1% and 1% of the total material weight, and the specific value depends onTarget effect and cost control. If too much is added, it may negatively affect other properties of the material (such as hardness or transparency); if insufficient addition, the expected protective effect cannot be achieved.

2. Initial color stability

Initial color stability refers to the color performance of the material without any aging treatment. This is especially important for medical devices, as most devices need to maintain high transparency and pure white tones. Generally speaking, polyurethane TPE treated with anti-yellowing agent should meet the following requirements:

  • Light transmittance: ?90%
  • Haze: ?5%
  • Yellow Index: ?1.0

3. Weather resistance test

Weather resistance test is used to evaluate the material’s anti-aging ability under simulated natural environment conditions. Commonly used methods include xenon lamp accelerated aging test and UV lamp box testing. The following are typical test results reference values:

  • Xenon lamp aging test: Change of yellow index after 400 hours ?5
  • Ultraviolet light box test: Tensile strength retention rate after 1000 hours ?80%

4. Biocompatibility certification

As a key ingredient in medical equipment, anti-yellowing agents must pass strict safety testing to ensure that they are non-toxic and harmless to the human body. This usually involves testing items in the ISO 10993 series of standards, including cytotoxicity, sensitization, irritation and acute toxicity.

Table 3 summarizes the main technical parameters of polyurethane TPE anti-yellowing agent:

parameter name Test Method Reference Value
Add ratio Laboratory formula optimization 0.1%-1%
Initial Color Stability Spectral Analysis Yellow Index ?1.0
Weather resistance test Xenon lamp/UV light box Yellow index change ?5
Biocompatibility certification ISO 10993 Series Standard Meet the non-toxicity requirements

Special Performance Requirements

In addition to the above basic parameters, some high-end medical equipment may also make additional special requirements, such as:

  • Anti-bacterial properties: Some surgical instruments need to have certain antibacterial abilities to prevent cross-infection.
  • Gamma-resistant disinfection: For products that require frequent gamma-ray disinfection, anti-yellowing agents must be able to withstand high doses of radiation without failing.
  • Low Volatility: In order to avoid the production of harmful gases during high-temperature processing, the anti-yellowing agent should have low volatility.

Through precise control of these parameters, manufacturers can ensure that the final product meets both functional requirements and meets strict medical standards.

The current situation and development prospects of domestic and foreign research

With the rapid development of the global medical industry, research on polyurethane TPE anti-yellowing agents has also received increasing attention. In recent years, many remarkable results have been achieved in both basic theoretical exploration and practical application development.

Domestic research progress

In China, the research and development of polyurethane TPE anti-yellowing agents was relatively late, but the development speed was very rapid. At present, many domestic scientific research institutions and enterprises have mastered core technologies and launched a number of products with independent intellectual property rights. For example, the Institute of Chemistry, Chinese Academy of Sciences has developed a new type of hindered amine light stabilizer, whose comprehensive performance is close to the international leading level. At the same time, the School of Materials of Tsinghua University has also made breakthroughs in the field of antioxidants and successfully developed an efficient and environmentally friendly thioester compound.

It is worth noting that Chinese researchers pay special attention to innovating in combination with local market demand. In response to the demand for some low-cost medical equipment, they have developed a variety of cost-effective anti-yellowing agent formulas, which has greatly promoted the development of related industries.

International Frontier Trends

Looking at the world, European and American countries have always been in the leading position in the field of polyurethane TPE anti-yellowing agents. BASF, Germany and Dow Chemical are two of the biggest giants in this field. They not only have a rich patent reserve, but also continue to launch new generations of high-performance products. For example, BASF’s newly launched UVINUL series of ultraviolet absorbers is not only more efficient, but also more environmentally friendly; while Dow Chemical focuses on developing composite anti-yellowing agents based on nanotechnology, further improving the stability and scope of application of the product.

In addition, Japan’s Mitsubishi Chemical Company is also actively exploring the direction of intelligent anti-yellowing agents, trying to achieve real-time monitoring and early warning of material aging by introducing sensor technology and big data analysis. This innovative idea for future medical careThe intelligent upgrade of equipment has laid the foundation.

Prospects of development trends

Looking forward, the research on polyurethane TPE anti-yellowing agents will develop in the following directions:

  1. Green and Environmental Protection: As people’s awareness of environmental protection increases, the development of non-toxic and degradable anti-yellowing agents will become the mainstream trend.
  2. Multifunctional Integration: By combining anti-yellowing function with other characteristics (such as antibacterial, conductive, etc.), we create more composite materials that are suitable for complex application scenarios.
  3. Intelligent upgrade: With the help of IoT technology and artificial intelligence algorithms, anti-yellowing agents are given self-diagnosis and self-repair capabilities, thereby greatly improving the reliability and service life of medical equipment.

In short, with the continuous advancement of science and technology, polyurethane TPE anti-yellowing agents will surely play an increasingly important role in the medical field and make greater contributions to the cause of human health.

Conclusion: Small additives, big ones

From the initial simple anti-aging requirement to now becoming an indispensable core component of medical equipment, polyurethane TPE anti-yellowing agent has gone through a long and brilliant development process. It is like an unknown behind-the-scenes hero, protecting the quality and safety of every medical device in its own unique way. Whether it is scientists who are devoted to studying in the laboratory or technical workers who are carefully operating on the production line, they are all using their own efforts to make the world a better place.

Maybe you have never noticed its existence, but please believe that it is precisely because of such a “invisible guardian” that our lives have become more worry-free.

Extended reading:https://www.bdmaee.net/cas-63469-23-8/

Extended reading:https://www.bdmaee.net/high-quality-tmr-2/

Extended reading:<a href="https://www.bdmaee.net/high-quality-tmr-2/

Extended reading:https://www.newtopchem.com/archives/1078

Extended reading:https://www.bdmaee.net/cas-1067-33-0-2/

Extended reading:https://www.bdmaee.net/bis3-dimethylaminopropylamino-2-propanol-cas-67151-63-7-jeffcat-zr-50/

Extended reading:https://www.bdmaee.net/pc-cat-td33eg-catalyst/

Extended reading:https://www.bdmaee.net/dabco-ne600-catalyst-cas10861-07-1-evonik-germany/

Extended reading:https://www.newtopchem.com/archives/1832

Extended reading:https://www.bdmaee.net/trisdimethylaminopropylamine-polycat-9-pc-cat-np109/

Extended reading:https://www.newtopchem.com/archives/38900

Improve the surface treatment of household appliances using polyurethane TPE anti-yellowing agent

3月 16th, 2025 News

Application of polyurethane TPE anti-yellowing agent in surface treatment of household appliances

1. Introduction: Make home appliances “face” brighter

In today’s era of “appearance is justice”, the appearance design of household appliances has long become one of the important considerations for consumers’ purchases. Just imagine, if a brand new refrigerator or washing machine has an embarrassing yellow spot on the surface after long-term use, its original high-end temperament will be greatly reduced in an instant. We call this phenomenon “yellow change”. In order to deal with this problem, polyurethane TPE anti-yellowing agent came into being and became a star product in the field of modern home appliance surface treatment.

So, what is polyurethane TPE anti-yellowing agent? Simply put, this is an additive specially used to improve the aging resistance of materials. Its main function is to delay or prevent material color changes caused by factors such as ultraviolet irradiation and high temperature oxidation. For household appliances, whether it is a plastic shell or a coated surface, once it turns yellow, it will not only affect the beauty, but may also reduce the service life and market competitiveness of the product. Therefore, how to improve the anti-yellowing performance of home appliance surfaces through scientific means has become a key topic of concern to the industry.

This article will start from the basic principles of polyurethane TPE anti-yellowing agent and combine practical application cases to deeply explore its important role in the surface treatment of household appliances. At the same time, we will use easy-to-understand language, supplemented by detailed data tables and document references to help readers fully understand the charm of this technology. Next, let us unveil this mysterious veil of protecting the “face” of home appliances!

2. Characteristics and working principle of polyurethane TPE anti-yellowing agent

(I) Definition and classification of polyurethane TPE anti-yellowing agent

Polyurethane TPE anti-yellowing agent is a functional chemical additive that is widely used in thermoplastic elastomer (TPE) materials, aiming to reduce or eliminate material color deterioration caused by environmental factors. Depending on its chemical structure and mechanism of action, this type of anti-yellowing agent can be divided into the following categories:

  1. UV Absorbent Anti-Yellowing Agent
    This type of anti-yellowing agent can effectively absorb UV energy and convert it into harmless heat to release it, thereby avoiding the damage of UV light to the material’s molecular bonds. Common UV absorbers include benzotriazoles, salicylates, etc.

  2. Free radical capture anti-yellowing agent
    Under light or high temperature conditions, free radicals are easily generated inside the material, which will accelerate the aging process of the material. Free radical capture anti-yellowing agents can capture free radicals through chemical reactions, inhibiting the occurrence of chain reactions, thereby achieving the effect of delaying yellowing.

  3. Antioxidation-type anti-yellowing agent
    Such anti-yellowing agents mainly target the oxidation reaction of the material in a high temperature environment, interrupting the oxidation reaction chain by providing hydrogen atoms or other active substances, thereby protecting the material from damage.

  4. Compound anti-yellowing agent
    Compound anti-yellowing agent combines the advantages of the above functions, can exert synergistic effects in different environments, and is suitable for high-performance needs under complex operating conditions.

(II) Working principle of anti-yellowing agent

The key reason why polyurethane TPE anti-yellowing agent can effectively prevent the material from yellowing is its unique chemical structure and mechanism of action. Here is a brief description of its main working principle:

  1. Ultraviolet shielding
    The UV absorbing components in the anti-yellowing agent can preferentially absorb high-energy ultraviolet rays and convert them into low-energy infrared or visible light, thereby avoiding the ultraviolet rays acting directly on material molecules, causing molecular bond breakage and degradation.

  2. Free radical scavenging
    When the material is exposed to high temperatures or strong light, a large amount of free radicals may be generated inside the molecules. If these free radicals are not removed in time, they will trigger a chain reaction, which will eventually cause the material to discolor or even crack. Anti-yellowing agents quickly neutralize free radicals by providing electrons or hydrogen atoms, thereby preventing further chemical reactions.

  3. Antioxidant protection
    Oxidation reaction in high temperature environments is one of the main reasons for material yellowing. Anti-yellowing agents provide a stable antioxidant environment for the material by sacrificing its own molecular structure and extending the service life of the material.

(III) Product parameters list

In order to better understand the performance characteristics of polyurethane TPE anti-yellowing agent, we have compiled a detailed product parameter list as follows:

parameter name Unit Typical value range Description
Density g/cm³ 1.05 – 1.20 Denotes the mass per unit volume of the material, affecting processing fluidity and molding performance
Thermal Stability ? >280 The material’s tolerance under high temperature conditions ensures that it does not decompose long-term use
UV absorption efficiency % ?95 The ability to absorb ultraviolet rays, the higher the value, the better the protection effect
Free radical scavenging rate % ?80 The ability to scavenge free radicals directly affects the anti-yellowing effect
Solution —— Easy soluble in organic solvents Easy to mix with other materials and improve processing adaptability
Additional amount % 0.5 – 2.0 Adjust the addition ratio according to the specific application scenario. Too much may lead to other performance degradation

The above parameters are only general reference values, and the specific values ??may vary depending on the supplier and production process. In practical applications, it is necessary to optimize the selection based on the characteristics of the target material and the use environment.

III. Practical application of polyurethane TPE anti-yellowing agent in household appliances

(I) Analysis of the causes of yellowing of household appliances

As an indispensable part of daily life, household appliances usually need to have good wear resistance, corrosion resistance and aesthetics. However, during long-term use, due to the influence of the external environment, many home appliances will experience varying degrees of yellowing on the surface. Here are some common causes of yellowing:

  1. Ultraviolet radiation
    When the appliance shell or panel is exposed to sunlight for a long time, ultraviolet rays will destroy the molecular structure of the material, causing molecular bonds to break, thereby causing color changes.

  2. High temperature aging
    Kitchen appliances such as microwave ovens, ovens, etc. are often in high temperature environments, which will cause the material to undergo oxidation reaction and then yellowing.

  3. Chemical erosion
    Some detergents or airborne contaminants can react chemically with appliance surface materials to form yellow deposits that are difficult to remove.

  4. Mechanical Stress
    Frequent physical friction or impact may also cause changes in the surface molecular structure of the material, thereby accelerating the yellowing process.

(II) Application cases of anti-yellowing agents

In order to effectively solve the above problems, polyurethane TPE anti-yellowing agents are increasingly widely used in household appliances. The following are some typical application scenarios:

1. Refrigerator housing

As one of the most frequently used electrical appliances in the home, the refrigerator is mostly made of ABS or PC/ABS alloys. Although these materials have excellent mechanical properties, they are susceptible to the influence of ultraviolet rays and oxygen during long-term use and yellowing. By adding an appropriate amount of polyurethane TPE anti-yellowing agent, the anti-aging performance of the refrigerator shell can be significantly improved and keep it as bright as new.

2. Microwave oven door panel

Microwave oven door panels are usually made of transparent or translucent polycarbonate (PC) materials, which are prone to yellowing in high temperature environments, affecting the visual effect. Experiments show that after adding a specific proportion of UV-absorbing anti-yellowing agent, the light transmittance and color stability of the door panel were significantly improved.

3. Vacuum cleaner handle

The vacuum cleaner handle is mostly made of soft TPE material to provide a comfortable grip experience. However, this material is also prone to discoloration due to friction and oxidation during long-term use. By introducing free radical capture anti-yellowing agent, it can not only extend the service life of the handle, but also enhance user satisfaction.

(III) Current status of domestic and foreign research

In recent years, significant progress has been made in the research on polyurethane TPE anti-yellowing agents. For example, DuPont, the United States, has developed a new composite anti-yellowing agent, whose comprehensive performance is far beyond that of traditional single-function products; while BASF, Germany, focuses on the research and development of environmentally friendly anti-yellowing agents, striving to reduce the impact on the environment while ensuring the effect.

In China, a study from the Department of Chemical Engineering of Tsinghua University showed that by adjusting the molecular structure of anti-yellowing agents, selective regulation of their absorption wavelength can be achieved, thereby better adapting to the needs of different materials. In addition, the School of Materials Science and Engineering of Zhejiang University proposed a nanotechnology-based anti-yellowing solution. This solution further enhances the anti-yellowing effect by constructing a nano-level protective layer on the surface of the material.

IV. Advantages and limitations of polyurethane TPE anti-yellowing agent

(I) Advantage Analysis

  1. Efficiency
    Polyurethane TPE anti-yellowing agent can significantly improve the anti-aging performance of the material at a lower added amount, which is both cost-saving and easy to operate.

  2. Broad-spectrum
    This type of anti-yellowing agent can be widely used in a variety of thermoplastic elastomer materials to meet the personalized needs of different home appliances.

  3. Environmentality
    With the advancement of technology, more and more green anti-yellowing agents have been developed, reducing potential harm to the environment.

  4. Economic
    Compared to replacing the entire appliance shell or re-coating, using anti-yellowing agent is undoubtedly a more economical option.

(II) Localization Analysis

Although polyurethane TPE anti-yellowing agent has many advantages, there are still some shortcomings in its application:

  1. Compatibility Issues
    Different brands and models of anti-yellowing agents may have compatibility differences with the target material, and it will take multiple trials to find a good match.

  2. Cost constraints
    The relatively high price of high-performance anti-yellowing agents may increase production costs, especially for price-sensitive products.

  3. Long-term effect uncertainty
    Although laboratory test results show that anti-yellowing agents have good effects, in actual use, their long-term performance still needs further verification due to the complexity of environmental conditions.

5. Future development trends and prospects

With the continuous advancement of technology and changes in market demand, the development prospects of polyurethane TPE anti-yellowing agent are very broad. Here are a few directions worth paying attention to:

  1. Intelligent anti-yellowing agent
    Combined with IoT technology and sensor technology, we will develop intelligent anti-yellowing agents that can monitor the status of materials in real time and automatically adjust the anti-yellowing effect.

  2. Multifunctional Integration
    Combining anti-yellowing function with other properties (such as antibacterial, anti-static, etc.) to create an integrated solution to meet diverse needs.

  3. Sustainable Development
    Strengthen research on renewable resources and develop more environmentally friendly anti-yellowing agents based on bio-based raw materials to help achieve carbon neutrality goals.

In short, as an important tool in the field of surface treatment of household appliances, its value cannot be underestimated. I believe that in the near future, with the continuous innovation and improvement of technology, this magical “face protection tool” will surely bring our lives.Come with more surprises!

Extended reading:https://www.morpholine.org/cas-26761-42-2/

Extended reading:https://www.newtopchem.com/archives/44807

Extended reading:<a href="https://www.newtopchem.com/archives/44807

Extended reading:https://www.newtopchem.com/archives/44821

Extended reading:https://www.newtopchem.com/archives/44934

Extended reading:https://www.cyclohexylamine.net/low-odor-amine-catalyst-bx405-low-odor-strong-gel-catalyst-bx405/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/27.jpg

Extended reading:https://www.bdmaee.net/fentacat-f13-catalyst-cas80284-38-9-solvay/

Extended reading:https://www.bdmaee.net/niax-stannous-octoate-soft-foam-catalyst-momentive/

Extended reading:https://www.newtopchem.com/archives/39388

Extended reading:https://www.cyclohexylamine.net/cas-6425-39-4-22-dimorpholinodiethylther/

1•10491050105110521053•2238
Page 1051 of 2238