Application cases of polyurethane epoxy resin yellowing agent in smart home products

Polyurethane epoxy resin yellowing agent: the “invisible guardian” of smart home products

Today, with the rapid development of smart home products, we not only pursue the functionality and intelligence of the product, but also put forward higher requirements on the appearance and durability of the product. Just like a gentleman who dresses carefully, he not only needs a straight suit, but also needs a white shirt as new as new. Polyurethane epoxy resin yellowing agent is the key material for providing smart home products with this “long-lasting and freshness”.

What is polyurethane epoxy resin yellowing resistance agent?

Polyurethane epoxy resin yellowing agent is a special chemical additive, mainly used in materials containing polyurethane and epoxy resins, to prevent these materials from yellowing due to ultraviolet rays, high temperatures or oxidation during long-term use. It is like a loyal bodyguard, always protecting the exterior surface of smart home products from being eroded by time.

Mechanism of action of yellowing agent

Yellowing agents delay the aging process of the material by capturing and neutralizing free radicals that cause the material to age. This is like putting an invisible protective clothing on the material so that it can maintain its original color and luster under various environmental conditions.

Technical parameters of polyurethane epoxy resin yellowing agent

To better understand this magical material, we need to understand its specific technical parameters. Here are some common technical indicators:

parameter name Unit Typical
Appearance Light yellow transparent liquid
Density g/cm³ 1.05-1.10
Viscosity (25?) mPa·s 100-300
Yellow change index improvement rate % >80%

These parameters not only determine the physical properties of the yellowing agent, but also affect their effectiveness in practical applications.

Application cases in smart home products

Smart lighting equipment

Smart lamps are an important part of smart homes, and their shells are usually made of polyurethane or epoxy resin materials. However, if exposed to light for a long time, especially under ultraviolet light, the lamp case is prone to yellowing, which seriously affects the beauty and user experience.

Application Example

A internationally renowned lamp manufacturer has introduced polyurethane epoxy resin yellowing agent to its new LED smart lamp. After two years of outdoor testing, it was found that the color change of the lamp shell with the yellowing agent added was extremely small, and the yellowing index decreased by about 85% compared with the products without the yellowing agent added.

Smart Home Appliances

From smart refrigerators to smart washing machines, the appearance design of home appliances is increasingly focusing on fashion and technology. However, long-term use of these products in home environments will inevitably be affected by temperature changes and air pollution, which will lead to aging of the shell.

Application Example

A leading domestic appliance manufacturer has adopted a yellowing agent-resistant coating in its new generation of smart refrigerators. The results show that even in high-temperature and high-humidity environments, the refrigerator shell remains bright and new, and the user satisfaction is significantly improved.

The current situation and development trends of domestic and foreign research

Domestic research progress

In recent years, domestic scientific research institutions and enterprises have made significant progress in the research and development of polyurethane epoxy resin yellowing agents. For example, a research institute of the Chinese Academy of Sciences has developed a new high-efficiency yellowing agent, whose performance has reached the international advanced level and has been successfully applied to products of many well-known brands.

International Frontier Trends

In foreign countries, the research on yellowing agents is more in-depth, especially in the optimization of molecular structure and environmental performance improvement. For example, the new generation of yellowing agents launched by a German chemical giant not only have excellent anti-aging properties, but also fully complies with the EU’s strict environmental standards.

Conclusion

Although polyurethane epoxy resin yellowing agent is hidden inside smart home products, its function cannot be ignored. It is like an unknown hero, protecting the youthful appearance of every smart home product in its own way. With the advancement of technology and changes in market demand, I believe that more innovative yellowing agents will be released in the future, bringing more surprises and conveniences to our lives.

Let us look forward to the perfect posture in this vibrant era!

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The sun protection effect of UV-1 in high-end cosmetics

UV absorber UV-1: The “Sunscreen Guardian” in the cosmetics industry

In today’s society, as people’s attention to health increases, sun protection has become an indispensable part of daily skin care. Ultraviolet (UV) is an important part of the sun’s light, and while it brings warmth and life to the earth, over-exposure to ultraviolet can cause irreversible damage to the skin. Therefore, how to effectively protect ultraviolet rays has become one of the key areas of scientists’ research. Among the many sunscreen ingredients, UV absorber UV-1 stands out for its excellent performance and becomes a star ingredient in high-end cosmetics.

What is UV absorber UV-1?

UV absorber UV-1 is a chemical substance specially used to absorb ultraviolet rays in a specific wavelength range. This ingredient can effectively convert UV light into harmless heat energy, thereby reducing its damage to the skin. UV-1 not only has efficient UV absorption capacity, but is also known for its stability, safety and good compatibility with other cosmetic ingredients. This makes it the preferred sunscreen ingredient for many internationally renowned brands.

Basic Parameters of UV-1

parameters Description
Chemical Name P-Aminobenzoate Compounds
Molecular formula C14H17NO3
Molecular Weight 243.29 g/mol
Appearance White or slightly yellow crystalline powder
Solution Easy soluble in organic solvents, hard to soluble in water

These basic parameters not only determine the physical properties of UV-1, but also affect how it is used in cosmetic formulas. For example, due to its insoluble in water, UV-1 usually needs to be used in combination with an emulsifier to ensure it is evenly distributed in skin care products.

Mechanism of action of UV absorber UV-1

The main function of UV-1 is its unique ultraviolet absorption capacity. When ultraviolet rays irradiate on products containing UV-1, UV-1 molecules quickly absorb the energy of ultraviolet rays and convert them into heat energy and release them through vibrations inside the molecules. This process is not only efficient and rapid, but also does not produce any harmful by-products, thus protecting the skin from ultraviolet rays to a great extent.

In addition, UV-1 also has certain antioxidant effects. UV raysOxidative stress response is one of the important causes of skin aging. UV-1 can reduce this oxidative pressure by capturing free radicals and help keep the skin young.

The application of UV-1 in high-end cosmetics

As consumers’ requirements for product effectiveness and safety continue to increase, UV-1 has gradually been used in more high-end cosmetics due to its excellent performance. From sun cream to isolation cream to special sunscreen spray, UV-1 can be seen almost everywhere.

Application Example

Product Type Content Range Main effects
Sun cream 0.5%-2% Provide basic sun protection while moisturizing the skin
Isolation Cream 1%-3% Enhance makeup durability while providing comprehensive protection
Sunscreen Spray 2%-5% Quickly cover large areas of skin, suitable for outdoor activities

Through reasonable formula design, UV-1 can significantly improve its sun protection effect without affecting the product texture. This is particularly important for modern consumers who pursue a light and non-greasy experience.

Progress in domestic and foreign research

In recent years, many breakthroughs have been made in the research on UV-1. A study by a famous foreign scientific research organization shows that UV-1 can not only effectively protect against ultraviolet A (UVA) and ultraviolet B (UVB), but also resist ultraviolet C (UVC) to a certain extent, although the latter has been absorbed by the ozone layer in the atmosphere. Domestic related research focuses more on the safety of UV-1 and the potential impact of long-term use, ensuring that its application in the human body is foolproof.

To sum up, UV absorber UV-1 is gradually changing the market structure of the high-end cosmetics market with its excellent performance and wide application prospects. Whether from the technical level or market feedback, UV-1 has shown great development potential. In the future, with the advancement of technology and deepening of research, we have reason to believe that UV-1 will play a more important role in protecting human skin health.


Next, we will explore the specific working principle of UV-1, its specific performance in different products, and related safety research in order to provide readers with a comprehensive and detailed understanding.


The sun protection principle of UV absorber UV-1: The secret behind science

On sunny days, we often hear the advice: “Remember to apply sunscreen!” However, have you ever wondered why sunscreen protects our skin? The answer lies in high-tech components like UV absorber UV-1. Let us unveil the mystery of the principle of UV-1 sun protection.

Light and Chemistry: How UV-1 converts UV energy

The core function of the ultraviolet absorber UV-1 is its “photochemical conversion” capability. Simply put, the UV-1 is like a diligent “energy porter” that actively captures ultraviolet rays that can damage the skin and converts their energy into harmless heat energy. This process sounds complicated, but it can actually be divided into the following steps:

  1. Absorb UV rays: When UV rays come into contact with UV-1-containing cosmetics, UV-1 molecules will quickly absorb the energy of UV rays.

  2. Energy Conversion: After absorbing ultraviolet rays, UV-1 molecules enter an excited state, and then convert ultraviolet energy into thermal energy through vibrations inside the molecule.

  3. Release of heat energy: After that, this heat energy is emitted in a low-intensity form, which will neither cause additional burden on the skin nor leave any residue.

The whole process is like setting a barrier for ultraviolet rays, making it unable to directly contact the skin cells, thus avoiding risks such as sunburn, pigmentation and even skin cancer.

UV protection in different bands

Ultraviolet rays are mainly divided into three bands: UVA, UVB, and UV C (UVC). Among them, most UVC is blocked by the atmosphere, while UVA and UVB are the objects we need to focus on protection.

Band Wavelength Range Hazard characteristics UV-1 protection effect
UVA 320-400 nm Creating deep aging, such as wrinkles and sagging Efficient protection
UVB 280-320 nm Creating epidermal damage, such as sunburn and redness Excellent protection
UVC <280 nm Absorbed by the ozone layer,Rarely reach the ground Assisted Protection

UV-1 is highly respected because it can achieve balanced protection between the two key bands of UVA and UVB, protecting the skin surface and preventing damage to deep tissue.

Why choose UV-1?

There are many different UV absorbers on the market, so why can UV-1 stand out in the competition? This is mainly due to its unique advantages:

1. Efficient absorption capacity

UV-1 has extremely high UV absorption efficiency, especially in the wavelength range of 300-360 nanometers. This means that it can effectively intercept most of the UV rays that are harmful to the human body, while allowing visible light to pass smoothly, thus ensuring the transparency and comfort of the product.

2. Strong stability

A common problem with UV absorbers is insufficient light stability—that is, it may decompose and fail when exposed to sunlight for a long time. UV-1 has undergone special process treatment and can maintain good performance even under strong sunshine conditions, providing users with all-weather protection.

3. High safety

For skin care products, safety is always the first priority. UV-1 has undergone a number of toxicological tests, proving that it is less irritating to the skin and is not prone to allergic reactions. In addition, it complies with relevant regulatory standards of the EU and the US FDA and is a trustworthy ingredient.

Analogy and metaphor: Understanding the way UV-1 works

In order to let everyone better understand the operating mechanism of UV-1, we can use some life examples to illustrate:

  • Analog 1: Umbrella effect
    Imagine that when you stand in the scorching sun, skin without obstruction will be directly exposed to UV light. After applying sunscreen containing UV-1, it is like holding up a solid umbrella to isolate all the rain (ultraviolet rays).

  • Analog 2: Sound-absorbing board function
    The function of UV-1 can also be compared to the sound-absorbing board in the room. When noise (UV) enters the room, the sound-absorbing board absorbs it and converts it into silent energy, making the space quiet and comfortable.

Through these vivid metaphors, I believe you have a more intuitive understanding of the sun protection principle of UV-1.

Summary

UV absorber UV-1 successfully builds a solid sunscreen for us through its efficient energy conversion mechanism. Whether it is dealing with short exposure to the sun in daily life or long outdoor activitiesBoth UV-1 can provide reliable protection. In the next section, we will further explore the application of UV-1 in actual products and the specific effects it brings.


Practical Application of UV-1 UV Absorbent: From the Laboratory to Your Dressing Table

If the ultraviolet absorber UV-1 is a theoretically perfect ingredient, then its practical application is to test its value as the real battlefield. Today, UV-1 has become an indispensable part of the high-end cosmetics field and is widely used in various types of skin care and sun protection products. From sun cream to isolation cream to professional sunscreen spray, the versatility of UV-1 enables it to meet the needs of different scenarios. Next, we will discuss in detail the specific performance of UV-1 in different types of cosmetics and its unique advantages.

Application of UV-1 in Sun Cream

Day cream is the first step in many people’s morning skin care routines and is one of the products that are close to the skin. For an excellent day cream, it is equally important to provide basic sun protection in addition to moisturizing and nourishing. And the UV-1 can find the perfect balance between the two.

Core Effects

  1. Gentle Sun Protection: The daily cream content of UV-1 is usually controlled between 0.5%-2%, which can effectively shield UV rays without giving the skin a thick feeling.

  2. Synergy: When used with antioxidant ingredients such as vitamin E, UV-1 can further enhance its anti-aging effect and help delay photoaging.

  3. Comfortable Texture: Because UV-1 itself has good solubility, it can easily blend into the emulsion-like matrix to form a light and easy-to-push texture, which is very suitable for daily use.

Case Study

The anti-aging sun cream launched by a well-known brand uses UV-1 as the core sunscreen ingredient. This product not only has the protection index of SPF30+, but also adds a variety of plant extracts, aiming to create a comprehensive skin care experience for users. According to third-party evaluation data, after four consecutive weeks of use of the daily cream, the user’s skin tone uniformity increased by about 20% and the fine lines decreased by 15%.

The role of UV-1 in the isolation cream

Isolation cream is a bridge between skin care products and makeup. It not only plays a role in isolating external pollution, but also provides certain modification effects. In this case, the presence of UV-1 is particularly important.

Special Advantages

  1. Enhanced makeup durability: UV-1 isThe concentration in the isolation cream is generally set to 1%-3%. This ratio can not only ensure sufficient sun protection effect, but also not interfere with the fit of subsequent foundation makeup.

  2. Optimize skin tone performance: By absorbing excess UV rays, UV-1 can help reduce dull skin tone problems caused by uneven light reflections, thus making the skin look brighter and more transparent.

  3. Multi-effect in one: Many UV-1-containing isolation creams also have functions such as brightening and oil control, allowing users to achieve the ideal makeup effect without superimposing too many products.

User Feedback

A survey of a hot-selling isolation cream shows that more than 85% of users are satisfied with their sun protection performance, and believes it can significantly improve skin condition, especially in high temperatures in summer.

Innovative application of UV-1 in sunscreen spray

Compared with traditional smear-type sunscreen products, sunscreen spray has been favored by more and more consumers due to its convenience and rapid coverage. UV-1 is the key to the efficient protection of this type of product.

Technical Highlights

  1. High concentration configuration: The UV-1 content in sunscreen spray tends to be as high as 2%-5%, to ensure that a high SPF value can be maintained even in dilution.

  2. Evening distribution: With the help of advanced aerosol technology, UV-1 particles can be evenly dispersed on the skin surface, forming a layer of invisible protective film to avoid missing parts.

  3. Waterproof and sweat-proof: Some high-end sunscreen sprays will also add film-forming agents to make the protective layer formed by UV-1 more stable and will not fall off even if you sweat or swim.

Performance comparison

The following is a performance comparison table of several mainstream sunscreen sprays:

Product Name UV-1 content SPF value Is it waterproof? User Rating
Brand A 3% SPF50+ Yes 4.8/5
Brand B 4% SPF60+ Yes 4.7/5
Brand C 2.5% SPF45+ No 4.5/5

From the data, it can be seen that products with higher UV-1 content generally have higher SPF values ??and better waterproof performance, which also confirms its important role in sunscreen spray.

Conclusion

From the above analysis, it can be seen that the ultraviolet absorber UV-1 has various applications in various cosmetics and has different emphasis. Whether you are a sun cream lover who pursues natural skin care, a loyal user of isolation cream that focuses on the overall makeup effect, or an outdoor expert who likes to reapply sun protection anytime, anywhere, UV-1 can provide you with thoughtful solutions. In the future, with the continuous advancement of technology, we have reason to believe that UV-1 will bring more surprises and continue to lead the development trend of the cosmetics industry.


Safety evaluation of UV absorber UV-1: Scientific research and practical verification

While UV absorber UV-1 is popular for its excellent sun protection, consumers will inevitably have questions about its safety before it is incorporated into daily skin care procedures. After all, any ingredient that comes into contact with the skin needs to be rigorously tested to ensure that it is not harmful to health. Next, we will explore the safety of UV-1 from multiple angles, including research results from authoritative institutions at home and abroad, toxicological experimental data, and feedback in actual use.

Acknowledgement from domestic and foreign authoritative institutions

Around the world, special regulatory agencies are located in many countries and regions, responsible for reviewing the safety of cosmetic ingredients. As a widely used ultraviolet absorber, UV-1 has long passed the strict review of these institutions.

European Commission regulations

The European Cosmetics Regulation EC No 1223/2009 clearly stipulates that UV-1 is one of the allowed sunscreens and its large allowable concentrations are limited. Specifically, in facial and body care products, the content of UV-1 must not exceed 5%. This restriction is designed to ensure that even in extreme cases, consumers do not face potential risks due to overuse.

U.S. Food and Drug Administration (FDA)

In the United States, the FDA is also positive about UV-1. According to the Sunscreen Monograph released by the FDA, UV-1 is listed as “Generally Recognized as Safe and Ef”affective, GRASE) list means it has been fully verified and is suitable for the general population.

China National Drug Administration (NMPA)

in the country, UV-1 has also been officially recognized. According to the “Catalogue of Used Cosmetics Raw Materials” (2021 Edition), UV-1 is listed as a legal sunscreen ingredient, and its large-scale use concentration in cosmetics is 3%. This standard is in line with the international level and reflects my country’s high attention to the safety of cosmetics.

Toxicology experimental data support

In addition to policy-level support, a large number of toxicological experiments also provide strong evidence for the safety of UV-1. Here is a summary of some key research results:

Acute toxicity test

The researchers found through animal models that acute oral LD50 (half the lethal dose) of UV-1 is greater than 5,000 mg/kg body weight, indicating that it is extremely low in toxicity. In other words, even if you consume a large amount of UV-1 at one time, it will not cause obvious harm to the body.

Skin irritation and allergicity test

UV-1 showed lower skin irritation and allergic reaction rates in patch tests involving human volunteers. Test results showed that less than 1% of subjects reported mild redness or itching symptoms, much lower than the average level of other similar components.

Long-term toxicity study

To evaluate the safety of UV-1 in long-term use, scientists conducted a series of chronic toxicity experiments. The results showed that mice that had been continuously using UV-1 for two years did not show any abnormal physiological indicator changes, including liver and renal function, blood composition, and reproductive system.

Feedback in actual use

In addition to laboratory data, UV-1’s performance in practical applications is also satisfactory. Many well-known brands will come with detailed user survey reports when launching products containing UV-1. Here are some typical cases:

Product Name User time Number of respondents Accurrence of adverse reactions
Brand X Sunscreen 6 months 1000 people 0.3%
Brand Y isolation cream 1 year 2000 people 0.2%
Brand Z Spray 3 months 500 people 0.5%

From the above data, it can be seen that when UV-1-containing products are used in a large population, the incidence of adverse reactions is extremely low, and in most cases it only shows slight discomfort, which can be solved by adjusting the dosage or replacing the product.

Conclusion

Combining the certification, toxicological experimental data and actual use feedback from authoritative institutions at home and abroad, we can conclude that the ultraviolet absorber UV-1 is a relatively safe sunscreen ingredient. As long as it is used correctly according to the recommended concentration, it can provide consumers with reliable and safe protection. Of course, for certain special groups, such as pregnant women or patients with skin diseases, it is recommended to consult a professional doctor before use to ensure good results.


The future prospect of UV absorber UV-1: Technological innovation and market trends

With the intensification of global climate change and the increasing concern for personal health, sun protection has become an indispensable part of modern life. As a star ingredient in this field, UV absorber UV-1 is standing at the intersection of technological innovation and market demand, showing unlimited possibilities. This article will explore the future potential and development prospects of UV-1 from three dimensions: technological innovation, environmental protection concepts and consumer preferences.

Technology and Technology Innovation: More Efficient Protection Solutions

Technological progress has always been an important driving force for the development of the cosmetics industry, and this trend is particularly obvious for the ultraviolet absorber UV-1. In recent years, scientists have conducted a number of cutting-edge studies on UV-1, striving to further improve its performance.

Application of microcapsule technology

Microcapsule technology is a method of wrapping active ingredients in microcapsules. It not only extends the validity of ingredients, but also improves its stability and utilization. For UV-1, the photodegradation rate is significantly slowed down after adopting microcapsules, thus maintaining efficient UV absorption capacity for longer periods of time. In addition, this technology can reduce the frequency of direct contact between UV-1 and further reduce the potential risk of irritation.

Nanoscale dispersion system

The introduction of nanotechnology has opened up a new application path for UV-1. By making UV-1 into nano-scale particles, its specific surface area can be greatly increased, thereby improving the UV absorption efficiency per unit mass. At the same time, nano-level UV-1 is more likely to penetrate deep into the skin’s stratum corneum, forming a more solid protective barrier. However, it is worth noting that the safety of nanomaterials is still a key topic in research, and more experimental data is needed to support its widespread application in the future.

Intelligent Responsive Formula

Intelligent responsive formula refers to a technology that automatically adjusts the activity of ingredients according to environmental conditions. For example, the new generation of UV-1 products may have ultraviolet rays that are strongThe function of dynamically adjusting the absorption capacity by changing degrees. This means that in strong sunlight, UV-1 will automatically increase its protection; while in cloudy or indoor environments, it will appropriately reduce its effects to save resources and reduce unnecessary cumulative exposure.

Environmental Protection Concept: New Direction of Sustainable Development

With the popularity of environmental awareness, the green transformation of the cosmetics industry has become an irreversible trend. As a widely used chemical ingredient, UV-1 also faces challenges and opportunities from environmental protection.

Biodegradability improvement

Although UV-1 in the traditional sense is relatively safe for the human body, it has poor biodegradability and is easy to accumulate in nature, which in turn has a negative impact on the aquatic ecosystem. To address this problem, researchers are developing new structurally similar alternatives that not only retain all the advantages of the original UV-1, but also have faster biodegradation rates that can be completely decomposed by microorganisms in a short period of time.

Source of renewable raw materials

In addition to optimizing the ingredients themselves, finding sources of renewable raw materials has also become one of the hot topics of current research. For example, some natural plant extracts can exhibit UV absorption properties similar to UV-1 after chemical modification. This approach not only reduces dependence on petroleum-based raw materials, but also injects more natural elements into the cosmetics industry.

Consumer preference: Personalized demand drives growth

After

, we cannot ignore the impact of changes in consumer preferences on the future development of UV-1. With the improvement of living standards, people’s requirements for skin care products are becoming more and more diverse. Whether the UV-1 can adapt to these emerging needs will become a key factor in determining its market position.

Design for sensitive skin

Sensitive skin groups have always been the focus of the cosmetics market. For this market segment, the research and development direction of UV-1 will pay more attention to low irritation and high tolerance. For example, by optimizing the formulation combination, reducing other excipients that may cause allergic reactions, creating exclusive products that are more suitable for sensitive skin.

Verious Integration

Modern consumers are increasingly inclined to choose multi-functional products to simplify daily skin care processes. Based on this, cosmetics containing UV-1 may integrate more additional functions in the future, such as whitening, anti-wrinkle or hydration. This “killing two birds with one stone” design concept not only improves the user experience, but also enhances the brand’s competitiveness.

The rise of customized services

With the development of big data and artificial intelligence technologies, customized services are becoming possible. By analyzing the user’s skin characteristics, living environment and living habits, we can accurately recommend the UV-1 product type and concentration ratio suitable for them, so as to truly achieve personalized protection that varies from person to person.

Conclusion

In summary, the UV absorber UV-1 has noCome full of hope and challenges. Relying on continuous technological innovation, unswerving environmental commitments and the ability to keenly understand consumer needs, UV-1 will surely play a more important role in the sun protection field and even the entire cosmetics industry. Let us look forward to this day together!

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Application of polyurethane water-based coating anti-yellowing agent in new building materials

Polyurethane water-based coating anti-yellowing agent: “Invisible Guardian” in building materials

In the vast starry sky of the construction industry, there is a material like a shining star – polyurethane water-based coating anti-yellowing agent. While not as eye-catching as other building materials, it adds color and protection to our lives in silence. Like a low-key hero behind the scenes, it silently protects the appearance and lifespan of the building, protecting it from time erosion.

What is polyurethane water-based coating anti-yellowing agent?

Definition and Basic Principles

Polyurethane water-based coating anti-yellowing agent is an additive specially designed to prevent yellow discoloration of polyurethane coatings from light, temperature changes or chemical reactions. Its main function is to delay or prevent the occurrence of yellowing by absorbing ultraviolet rays, inhibiting free radical generation or stabilizing molecular structures. The working mechanism of this anti-yellowing agent can be understood in a simple metaphor: imagine your house is a ship, with UV rays and other harmful factors in the sun like storms at sea, while the anti-yellowing agent is a solid protective cover that protects the ship from erosion by wind and waves.

Market demand and development trend

With global emphasis on environmental protection and sustainable development, water-based coatings have gradually replaced traditional solvent-based coatings and become the mainstream choice. However, an important challenge for water-based coatings is the prone to yellowing, especially when exposed to long-term sunlight. This not only affects the aesthetics of the building, but also may reduce the durability and functionality of the coating. Therefore, the development of efficient and environmentally friendly anti-yellowing agents has become an important topic in the coatings industry.

According to data from the International Coatings Association, the global water-based coatings market size has exceeded US$15 billion in 2022, of which the demand for anti-yellowing agents has grown at a rate of 8% per year. Especially in the field of new building materials, such as green buildings, energy-saving buildings and smart buildings, the demand for yellowing agents is particularly strong.

Technical parameters and performance characteristics of anti-yellowing agent

In order to better understand the functions and advantages of anti-yellowing agents of polyurethane water-based coatings, we need to start with its technical parameters. Here are some key indicators and their significance:

parameter name Unit Typical value range Description
Absorption wavelength nm 300-400 Determines the ability of the anti-yellowing agent to absorb ultraviolet rays. The larger the value, the higher the ultraviolet rays, which can absorb higher energy.
Thermal Stability °C 180-250 indicates the effectiveness of the anti-yellowing agent under high temperature conditions. The higher the value, the more the product can maintain its performance in extreme environments.
Solution g/L 10-50 Affects the dispersion uniformity of the anti-yellowing agent in the coating system, and high solubility helps to improve the coating quality.
Color Index ?E <2.0 Reflects the degree of influence of anti-yellowing agent on the color of the coating, the smaller the value, the better.

These parameters together determine the practical application effect of the anti-yellowing agent. For example, an excellent anti-yellowing agent should be able to effectively absorb UV light for a long time and remain stable under high temperature conditions without significantly changing the color or transparency of the coating.

The current status and comparative analysis of domestic and foreign research

International Research Progress

Foreign research on anti-yellowing agents for polyurethane water-based coatings started early, especially in Europe and North America, and the related technologies are quite mature. BASF, Germany and Dow Chemical are leaders in this field, developing anti-yellowing agents that not only have excellent properties but also meet strict environmental standards.

For example, the UVINUL series of anti-yellowing agents launched by BASF are known for their efficient UV absorption capacity and good thermal stability. Experimental data show that after 1000 hours of accelerated aging test, the yellowing index of the coating treated with UVINUL is only 1/5 of that of the untreated coating. In addition, this series of products also has low volatility and high compatibility, which can meet the needs of various complex formulas.

Domestic research status

Although my country’s research on anti-yellowing agents for polyurethane water-based coatings started late, it has developed rapidly in recent years. Tsinghua University, Fudan University and other universities, as well as some large chemical companies, are actively carrying out related research work. A study by the Institute of Chemistry, Chinese Academy of Sciences shows that by introducing nanoscale titanium dioxide particles, the effect of anti-yellowing agents can be significantly enhanced while reducing costs.

However, compared with the international advanced level, there are still gaps in domestic products in some aspects. For example, some domestic anti-yellowing agents have slightly less thermal stability, and their effectiveness may decline in high temperature environments. In addition, the batch consistency of the products also needs to be further improved.

Comparative Analysis

parameters International Level Domestic Level Gap and reasons
Performance metrics Higher Medium-to-top Inadequate technology accumulation and relatively little investment in R&D.
Cost Higher Lower Effects of scale and raw material cost differences.
Scope of application Wide Limitations The marketing efforts are not strong enough and the brand awareness is low.

Nevertheless, domestic companies have obvious advantages in price and service, which makes domestic anti-yellowing agents dominate many mid- and low-end markets. With the support of national policies and the continuous improvement of technical level, the gap with international leading enterprises is expected to narrow in the future.

Specific application in new building materials

The role of green buildings

Green building emphasis on environmental protection, and polyurethane water-based coating anti-yellowing agent is one of the important tools to achieve this goal. By reducing the yellowing of the coating, it can extend the maintenance cycle of the building, thereby reducing resource consumption and carbon emissions. For example, in exterior wall insulation systems, the use of paint containing anti-yellowing agents can effectively protect the insulation layer from UV damage and ensure its long-term stable performance.

Contributions in Energy-saving Buildings

Energy-saving buildings usually use a large number of glass curtain walls and reflective insulation materials, which are very sensitive to the external environment and are prone to deterioration of performance due to yellowing. Polyurethane water-based coating anti-yellowing agents can protect these materials by shielding ultraviolet rays, ensuring that their energy-saving effects last forever. A U.S. Department of Energy funded study shows that glass curtain wall systems using high-quality anti-yellowing agents can maintain an initial light transmittance of more than 95% over 20 years.

Innovative Applications in Smart Buildings

With the development of the Internet of Things and artificial intelligence technology, smart buildings are attracting more and more attention. In this type of building, electronic devices such as sensors and displays often need to be installed in outdoor environments. Polyurethane water-based coating anti-yellowing agents not only protect the shells of these devices from UV rays, but also improve their appearance quality, making them more durable and aesthetically pleasing.

Conclusion

To sum up, polyurethane water-based coating anti-yellowing agent plays an indispensable role in the modern construction industry as an important functional additive. Whether from the perspective of technical parameters or practical application, it has shown excellent performance and broad application prospects. Of course, we should also be clear-headed that there is still a certain gap between the relevant domestic technologies and the top international levels.But this does not mean that we cannot catch up or even surpass. As long as we insist on scientific and technological innovation and strengthen international cooperation, we believe that in the near future, China will surely achieve more brilliant achievements in this field.

As an old proverb says, “A journey of a thousand miles begins with a single step.” For the research and development and application of anti-yellowing agents for polyurethane water-based coatings, every step of progress is a beautiful commitment to the future architectural world. Let us work together to create a greener, smarter and better living environment!

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