The oxidation process of polymer is a chain reaction of free radical type. Plastic antioxidants can catch the active free radicals, and generate inactive free radicals, or decompose the hydroperoxides that generated in the oxidation process, so as to terminate the chain reaction and delay the oxidation process of the polymer, so that the polymer can be processed successfully and its service life can be prolonged.

Benzotriazole is a kind of high efficient UV absorber which have a good UV absorption effect in the range of 280-380nm. It has advantages of high melting point, low toxicity, oil resistance, color resistance, low volatility, good compatibility, etc.

OMNISTAB UV1130 is a light yellow liquid uv absorber, which belongs to benzotriazole uv absorber series.

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