UV Absorber UV-866: The Ultimate Solution for Long-lasting Protection
In the world of chemistry and materials science, ultraviolet (UV) light is both a blessing and a curse. On one hand, it provides energy for many natural and technological processes, such as photosynthesis, photocatalysis, and UV curing. On the other hand, it can cause damage and degradation to many organic and inorganic materials, from plastics and coatings to fabrics and foods. To prevent or minimize this negative effect, UV absorbers are used to absorb and dissipate UV radiation before it can reach the substrate. One of the most effective and widely used UV absorbers is UV-866, also known as BASF light stabilizer Tinuvin 866, Tinuvin 866, or Light Stabilizer UV-866.
UV-866 is a type of compound light stabilizer that belongs to the class of hindered amine light stabilizers (HALS). HALS are known for their ability to scavenge free radicals and prevent oxidative degradation of polymers and other organic materials. Unlike other types of UV absorbers, such as benzophenones and benzotriazoles, HALS do not absorb UV radiation directly, but rather trap and neutralize reactive species that are generated by UV exposure. This mechanism makes HALS more versatile and durable than other UV absorbers, as they can provide long-lasting protection against both UV and thermal degradation.
UV-866 is especially effective in polyolefins, such as polyethylene and polypropylene, which are widely used in packaging, automotive, and construction industries. These polymers are prone to yellowing, embrittlement, and surface cracking when exposed to UV radiation and heat, which can reduce their mechanical and optical properties and shorten their service life. UV-866 can prevent or delay these effects by scavenging free radicals and stabilizing the polymer chains. Additionally, UV-866 has a low volatility and migration rate, which means it can stay in the polymer matrix and maintain its protective function for a long time.
UV-866 is a product of INNO Specialty Chemicals, a leading manufacturer and supplier of specialty chemicals and additives based in China. INNO has a strong expertise in HALS and other light stabilizers, and offers a wide range of products for various applications and industries. Besides UV-866, INNO also produces other types of HALS, such as UV-944, UV-292, and UV-123, which have different molecular structures and properties and can be used alone or in combination to achieve optimal performance.
UV-866 and other HALS have many advantages over other types of UV absorbers, such as high efficiency, low toxicity, and compatibility with various polymers and processing conditions. However, they also have some limitations and challenges, such as sensitivity to moisture, acidic conditions, and certain additives, such as phenolic antioxidants and metal ions. Therefore, it is important to choose the right type and dosage of HALS, and to test their compatibility and performance under specific conditions.
In conclusion, UV-866 is a highly effective and versatile UV absorber that can provide long-lasting protection against UV and thermal degradation in polyolefins and other polymers. INNO Specialty Chemicals is a reliable and innovative supplier of UV-866 and other HALS, and can offer customized solutions and technical support to meet the diverse needs of its customers. By using UV-866 and other advanced light stabilizers, manufacturers can enhance the durability, aesthetics, and sustainability of their products, and contribute to a more resilient and efficient economy.
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