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UV-327
Chemical name : 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole
Introduction : UV-327 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-327 is recommended in a variety of polymers and organic substrates, including acrylic polymers, polycarbonate, polyesters, styrene homo- and copolymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyvinyl butyral, elastomers, and adhesives.
CAS NO : 3864-99-1
Physical Properties
Molecular Weight : 357.9
Appearance : slight yellow powder
Melting Range : 154-157°C
Flashpoint : 234°C
Specific Gravity(20°C) : 0.37g/cm3
Transmissirity:
460nm≥97 %
500nm≥98%
Solubility At 20°C (g/100ml solvent)
Solvent SolubilityAcetone 1%Benzene 16%Chloroform 19%Cyclohexane 5.0%Ethyl Acetate 5.0%n-Hexane 4.0%Methanol <0.1%Methylene Chloride 17%Water <0.01%
Applications
1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight
2.PVC:
Rigid PVC : 0.2-0.5wt% based on polymer weight
Plasticized PVC : 0.1-0.3wt% based on polymer weight
3.Polyurethane : 0.2-1.0wt% based on polymer weight
4.Polyamide : 0.2-0.5wt% based on polymer weight
Packing: 25kg paper drum or carton
Bohanchem offers plastic additives ( chemical additives) such as optical brightener ( optical brightening agent, fluorescent whitening agent) , UV absorber ( UV absorbent) , light stabilizer ( light stabilizing agent, UV stabilizer, UV stabilizing agent) , antioxidant, pigment.
Polymerization retarder: 701 ( 4-hydroxy-TMHPO, TEMPO)
Fluorescent whitening agent: OB, OB-1, KCB, FP-127, KS, NFW
UV absorbers: UV-0, 531( BP-12) , UV-9, UV-P, 326, 327, 328, 329( 5411) , UV-T, 234, 571, 320
Antioxidant : 1010, 1076, 168, 264, 1098, 2246, 300, 311, B102, DLTP, DSTP, B215, B225, B900
Light stabilizer: 622, 770, 944, 802
Pigments: red 122, red 254, violet 19, violet 23, yellow 110, yellow 138, titanium dioxide