UV absorber UV-326: Wearing “sun protection clothes” for building glass

On sunny days, the sunshine pouring through the windows always makes people feel warm and comfortable. However, behind this beauty is a problem that cannot be ignored – the harm of ultraviolet rays. Long-term exposure to ultraviolet light will not only cause indoor items to fade and age, but may also pose a potential threat to human health. How to effectively resist the harm of ultraviolet rays has become an important issue that needs to be solved urgently in modern architecture.

UV absorber UV-326, as an efficient functional material, is gradually becoming a star product that improves the sun protection performance of building glass. It is like an invisible “sun protection clothing”, which can block harmful ultraviolet rays and allow visible light to pass smoothly, thereby maintaining a good lighting effect while protecting the indoor environment. This article will explore the characteristics of UV absorber UV-326 and its application in architectural glass from multiple angles, and let you understand the mystery behind this technology.

What is UV absorber UV-326?

Definition and Function

UV absorber UV-326 is a chemical substance specially used to absorb ultraviolet rays and belongs to a benzotriazole compound. Its main function is to capture ultraviolet energy through specific groups in the molecular structure and convert it into heat and release it, thereby avoiding direct damage to the material or the human body by ultraviolet light. Simply put, UV-326 is like an accurate “filter umbrella”, which can filter out harmful ultraviolet bands without affecting the transmission of other beneficial light.

Chemical structure and working principle

The chemical name of UV-326 is 2-(2′-hydroxy-5′-methylphenyl)benzotriazole, and its molecular formula is C15H13N3O. This compound has a highly stable chemical structure and can maintain excellent UV absorption capacity for a long time. Specifically, the working principle of UV-326 is as follows:

Selective Absorption: UV-326 can preferentially absorb ultraviolet rays (including UVA and UVB) in wavelength range between 290nm and 400nm, which is a band with a great impact on human health and material aging.
Energy Conversion: When ultraviolet rays are absorbed, UV-326 will convert these high-energy photons into low-energy thermal energy, and then disperse them into the environment in the form of heat, thereby achieving harmless treatment.
Stability Maintenance: Even after multiple absorption and release cycles, UV-326 can still maintain high activity and is not easy to decompose or fail.

This unique mechanism makes UV-326 an ideal UVWire protective materials are widely used in plastics, coatings, textiles and architectural glass.

Detailed explanation of the product parameters of UV-326

To better understand the technical characteristics of UV-326, we can display its key parameters through the following table:

parameter name	Unit	Value Range	Remarks
Appearance	–	White crystalline powder	Easy to disperse, suitable for a variety of processing techniques
Melting point	°C	148-152	High temperature stable, suitable for thermoplastic material processing
Solution	g/100ml	Insoluble in water, soluble in organic solvents	Common solvents include methanol, etc.
Absorption wavelength	nm	290-400	Cover the UVA and UVB bands
Large absorption efficiency	%	>98	Excellent performance in specified wavelength range
Photochemical stability	–	>1000 hours	Verified by accelerated aging test
Toxicity	LD50 (mg/kg)	>5000	Complied with EU REACH regulations

It can be seen from the table that UV-326 not only has excellent ultraviolet absorption capacity, but also has good physical and chemical properties, which provides a solid guarantee for its performance in practical applications.

The application advantages of UV-326 in architectural glass

Introducing UV-326 into the field of architectural glass can not only significantly improve the sun protection performance of glass, but also bring a series of added value. Here are some of the main application advantages:

Improving sun protection effect

Although ordinary transparent glass in a building allows most visible light to enter the room, it also allows a large amount of ultraviolet rays to penetrate. researchIt has been shown that unprotected glass windows may cause more than 70% of ultraviolet rays to enter the room, which causes irreversible damage to indoor furniture, floors and other decorations. The special coated glass with UV-326 can reduce this proportion to less than 5%, greatly extending the service life of indoor items.

Improving living comfort

In addition to protecting property, reducing ultraviolet radiation can also improve people’s living experience. For example, long-term exposure to ultraviolet light can easily cause skin problems and even increase the risk of cancer. Therefore, installing sunscreen glass containing UV-326 ingredients in home or office is undoubtedly a strong care for the health of the family.

Energy saving and environmental protection benefits

It is worth noting that using UV-326 treated glass also helps reduce air conditioning energy consumption. This is because the ultraviolet rays themselves carry higher energy, and when they are blocked outside, the temperature fluctuations in the room will be more stable, thus reducing the workload of the refrigeration equipment. It is estimated that the use of such high-performance glass can reduce the power consumption of air conditioners in summer by about 15%-20%.

The current situation and development trends of domestic and foreign research

In recent years, as people pay more attention to environmental protection and sustainable development, the research and development of the ultraviolet absorber UV-326 has also made significant progress. Here are some directions worth paying attention to:

Exploration of new composite materials

Scientists are trying to combine UV-326 with other functional additives to develop more efficient composite materials. For example, some experiments have shown that modifying a thin UV-326 coating on the surface of nanotitanium dioxide (TiO2) can further enhance its photocatalytic activity while giving the material stronger UV shielding ability. This innovative approach is expected to be applied in high-end architectural exterior wall design in the future.

Research and development of intelligent responsive glass

Another exciting research area is the development of smart responsive glass. This type of glass can automatically adjust the light transmittance according to the external light intensity, thereby achieving dynamic sun protection function. At present, a team has proposed a conceptual solution based on UV-326 modified polymer film. This solution uses an external light source to trigger internal chemical reactions to achieve the purpose of real-time regulation.

Promotion of environmentally friendly products

With the rise of global green building trends, more and more companies are beginning to pay attention to the environmental performance of UV-326 production process. By optimizing the synthesis route and reducing by-product emissions, the new generation of environmentally friendly ultraviolet absorbers are gradually entering the market. These products not only meet strict international standards requirements, but also make positive contributions to promoting the sustainable development of the entire industry.

Conclusion

In short, UV absorber UV-326 is gradually becoming a building with its excellent performance and broad application prospects.An indispensable and important component of the glass field. Whether for individual users who pursue high-quality life or professionals who are committed to building low-carbon and environmentally friendly buildings, UV-326 provides a practical technical solution. Let us look forward to this technology continuing to break through itself in the future and creating a better living environment for mankind!

UV absorber UV-326 is used to improve the sun protection performance of building glass

UV absorber UV-326 is used to improve the sun protection performance of building glass