UV absorbers, as absorbers, are currently the most widely used type of light stabilizers in China. According to their structural design, they can be divided into the use of salicylic acid and its esters, benzophenones, benzotriazoles, and substitution for the production of triazines. The most widely studied industrial applications are benzophenones and benzotriazoles. Quenching agents mainly form complexes with metals, such as divalent nickel complexes, which can be used in conjunction with ultraviolet absorbers to achieve synergistic development.

Folding effect of ultraviolet absorber UV-327

UV absorber UV-327 is a light stabilizer that can absorb the ultraviolet part of sunlight and fluorescent light sources without changing the light source itself.

Due to the lack of sunlight containing a large amount of harmful ultraviolet light to non-ferrous metal objects, with a wavelength of approximately 290-460 nanometers, these are all harmful ultraviolet lights that undergo chemical oxidation techniques to reduce historical effects, causing molecules of different colors and ultimately decomposing and fading.

There are both physical and chemical methods to prevent harmful ultraviolet light from damaging different colors.

Here, we will only briefly introduce the use of chemical methods, such as the use of UV absorbent UV-327 as an absorbent, to effectively prevent or weaken color damage to protected objects.

Folding UV absorber UV-327 should have the following working conditions

① Can strongly absorb and utilize ultraviolet radiation (especially for wavelengths of 290-400nm); ② Good thermal stability, even during processing, it will not change due to heat and has low thermal volatility; ③ Good chemical structure stability, no adverse development reactions between components and materials in other products; ④ Good miscibility, can be evenly dispersed in the material, without frost spraying or seepage; ⑤ The absorbent has good photochemistry and stability, does not decompose or discolor; ⑥ Colorless, non-toxic, and odorless; ⑦ Resistance to immersion washing; ⑧ Affordable and easily obtainable,; 9. Insoluble or insoluble in water.

UV absorbers can be classified into salicylates, ketones, benzotriazoles, substituted triazines, and hindered amines based on their chemical structure.

Nanjing Huali Mingke Industry and Trade Co., Ltd. is a manufacturer of UV absorbers UV-327, antioxidants 264, light stabilizers 622, and antioxidants 168. Welcome to cooperate and negotiate!