UV absorber UVP-328

　　Alias: (2-hydroxy-3,5-di-t-amylphenyl) benzotriazole

　　Appearance: light yellow powder.

　　Melting point: 81°C.

　　Soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethanol and methanol, insoluble in water.

　　Product usage and precautions

　　It is a highly effective ultraviolet absorber with a maximum ultraviolet absorption peak of 345nm, good compatibility with high polymers, and low volatility. It is mainly used for PE, PP, PS, PVC polyester and ABS resin. The general dosage in plastics is 1% to 3%.