Our product, UV absorber 328, is a hydroxyphenyl benzotriazole-class UV absorber that effectively absorbs UV radiation in the range of 300-400nm, while minimizing absorption in the visible light range.
It is a light yellow powder with a melting point of 80-88℃, flash point of 229℃, density of 1.17g/cm³, and vapor pressure of 4.7E-6pa. With a molecular formula of C22H29ON3 and a molecular weight of 351.5, our UV absorber 328 can protect polymers and organic pigments from UV radiation, maintaining the original appearance and mechanical properties of plastic products, films, sheets, fibers, and other materials used outdoors.
Our product is an effective light stabilizer for both plastics and other organic materials. It has strong absorption capabilities, is colorless and non-polluting, is compatible with a wide range of materials, has good solubility in plasticizers and monomers and is low in volatility. The maximum absorption peak is located at 306 and 347μm.
Overall, our UV absorber 328 offers excellent protection from harmful UV radiation while maintaining the aesthetic and functional properties of various plastic and organic materials.
