Ultraviolet (UV) absorbers are a class of organic compounds that can selectively and effectively absorb ultraviolet rays harmful to polymers and have high photoresistance, including benzophenones, benzotriazole, hydroxyphenyltriazine, salicylate, benzoate, cinnamate, oxaniline.



Advantages: low price; Long industrial history, mature technology; Sufficient application research and market development; Wide applicability; Better synergy effect.

Disadvantages: the absorption band is limited; It requires a certain optical path, has no protection on the surface of the product, and has poor protection efficiency on thin products and opaque products.