Chemical name: 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole
Chemical Name: 2- (2'-Hydroxy-3'-tert-buty-5'-methyl-phenyl) -5-chlorobenzortiazole
CAS No .: 3896-11-5
Molecular formula: C17H18N3Ocl
Molecular weight: 315.80
Appearance: light yellow powder
Melting point: ≥138 ° C
Volatile matter: ≤0.5%
Ash content: ≤0.1%
Light transmittance: 460nm≥93% 500nm≥96%
Uses: UV-326 (trade name) is one of the benzotriazole-based UV absorbers. It can be widely used in photosensitive materials such as color film, color film, color photo paper and polymer, outer protective coating and many fields.
We all know that water, air, and sunlight are indispensable in life, but everything has a degree, and it can't be overdone, such as sunlight. If you are exposed to the sun for a long time, the hot sun is a kind of warmth. Yes, but the hot sun is easy to burn the skin and bring harm. The human body is like this, the same will be the same for buildings, and other objects will be like this. You will find that if you are exposed to the sun for a long time, it will easily become whiter and lose The original gloss.
So how can we effectively avoid the damage caused by sunlight? We know that sunlight contains a large amount of ultraviolet light that is harmful to colored objects, and its wavelength is about 290-460 nanometers. These harmful ultraviolet light pass through chemical redox , So that the color molecules finally disintegrate and fade. The cause of colored things is getting whiter.
Just like polytetrafluoroethylene products , this product has properties such as alkali resistance, acid resistance, high temperature resistance, and stable chemical quality, so it is currently widely used in various industries. PTFE products are becoming more and more abundant.