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Product Detail

Product Detail

副标题

UV-327

Molecular Formula : C20H24ClN3O
Molecular Weight : 358
Chemical name : : 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole
Product Details


SPECIFICATION AND PHYSICAL PROPERTIES

APPEARANCE:SLIGHTLY YELLOW POWDER

ASSAY99.0% MELTING POINT:154-157℃;VOLATILES0.5%;ASH0.1%TRANSMITTANCE460nm95%500nm97%

TGA:   214(5%     230(10%  267(50%


FEATURE AND APPLICATION

UV327 is a strong absorber of ultraviolet radiation in the 290~400region and has a high degree of photostability - photochemical energy absorbed in the ultraviolet region is dissipated as thermal energy.

Exhibits good initial color, low volatility, excellent stability to heat and light, superiorwash fastness, and resistance to gas fading.

Is particulary suitable for polypropylene and polyethylene as well as cold cured polyesters, polyurethanes, dyes, and pigments.

The low pKa and high hindrance of the phenolicgroup result in low sensitivity to metalcontaining ingredients in polymer formulation - catalysts residues, metallic driers, etc.

Can be used in combination with phenolic &phosphite antioxidants, and HALS to optimize performance in outdoor use


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