What is a UV absorber and what is its function?

UV absorber is a chemical substance that can absorb ultraviolet radiation, thereby reducing or preventing damage to substances caused by ultraviolet radiation. Mainly used in the following fields:

1. Sunscreen products: UV absorbers are one of the main components in sunscreen products, which can absorb ultraviolet rays and protect the skin from UV damage.

2. Plastic products: Ultraviolet radiation can cause problems such as aging, yellowing, and brittleness of plastic products, while adding ultraviolet absorbers can effectively extend the service life of plastic products.

3. Paints and coatings: Ultraviolet radiation can cause discoloration, blistering, cracking, etc. on the surfaces of paints and coatings. Adding ultraviolet absorbers can prevent these problems from occurring.

4. Other industrial products: UV absorbers are also widely used in industrial products such as textiles, rubber products, and automotive parts to protect them from UV damage.