UV-P

As uv absorbent, this product is mainly suitable for polyester, epoxy acetate cellulose, polyvinyl chloride, polystyrene, plexiglass, polyacrylonitrile resin and so on. The maximum absorption wavelength range is 270-380nm.

详细介绍

Chemical name : 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole

Introduction : UV-P is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-P protects polymers as well as organic pigments from UV radiation helping to preserve the original appearance and physical integrity of engineered plastics, elastomers, PVC, adhesives, and polyurethanes during outdoor weathering.

Empirical Formula : C13H11N30

CAS NO : 2440-22-4

Structure : 

UV-P.gif

Physical Properties
Molecular Weight : 225.3
Appearance : slight yellow powder
Melting Range : 128-132 °C
Flashpoint : 205 °C
Specific Gravity(20 °C ) : 1.38g/cm3
Transmissirity:
            440nm≥ 98 %
            500nm≥ 99%
Solubility At 20 °C (g/100ml solvent)


SolventSolubilitySolventSolubility
Acetone2.5Dioctyl phthalate2.5
Ethanol0.3Dioctyl sebacate2.4
Methanol0.2MEG3.9
Carbitol2.6Methyl methacrylate5.0
Acetic ether3.5Styrene7.2
N-butyl acetate3.0Trimethylphosphate3.3
Benzene6.9Solvent Naphtha0.9
Toluene6.0Petroleum Solvent1.5
Cyclohexane0.7Water0

Applications1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight2.PVC:Rigid PVC : 0.2-0.5wt% based on polymer weightPlasticized PVC : 0.1-0.3wt% based on polymer weight3.Polyurethane : 0.2-1.0wt% based on polymer weight4.Polyamide : 0.2-0.5wt% based on polymer weight

Packing: 25kg paper drum or carton