天津UV Absorber UV-328

Chemical name: 2- (2 '- hydroxy-3', 5 '- dipentylphenyl) benzotriazole

Chemical formula: C22H29N3O

CAS NO. 3896-11-5

Main indicators:

Appearance: Light yellow powder

Content: ≥ 99%

Melting point: 80-83 ℃

Loss on drying: ≤ 0.5%

Ash content: ≤ 0.1%

Transmittance: 440nm ≥ 97%; 500nm ≥ 98%

Dissolution characteristics: soluble in benzene, toluene, ethyl acetate, and petroleum ether, slightly soluble in ethanol and methanol, insoluble in water

Characteristics and Application: It is an efficient ultraviolet absorber with a peak UV absorption peak of 345nm. Its photostability is similar to UV-326 and UV-327, but it has good compatibility with resins, low thermal volatility, and high washing resistance. It is mainly used for polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, epoxy resin, ABS resin, and cellulose resin, with a general dosage of about 1%. It also has excellent light stabilization effects in various coatings.

Storage, transportation, and packaging: (1) UV-328 is non-toxic, non flammable, non explosive, non corrosive, and has good storage stability. (2) Cardboard barrels are lined with plastic bags for packaging, with a net weight of 25kg per barrel.