1. Can strongly absorb ultraviolet rays (especially with wavelengths of 290-400 nm).
2. Good thermal stability, even in processing, there is no change in heat, small thermal volatility.
3. The chemical stability is good, no adverse reaction with material components in the product.
4. Good miscibility, can be evenly dispersed in the material, no frosting, no seepage.
5. Good photochemical stability of the absorbent itself, without decomposition.
6. Non-color, non-toxic, odorless
7. Invasive washing
UV absorbers can be divided into Salicylic acid series, phenylketon, Benzotriazole series, Substituted acrylonitrile series, Triazine series and other categories according to their chemical structure.