POLYVINYL CHLORIDE MODIFIER AND COMPOSITE, AND PREPARATION METHOD THEREFOR

摘要

The present invention discloses a polyvinyl chloride modifier, composition and a preparation method thereof. The composition comprises the following components by parts by weight: (a) polyvinyl chloride resin of 100 parts, and (b) a toughening modifier of 2-16 parts, the toughening modifier being rubber powder whose an elongation at break is greater than 2201% and which contains weight percentage of chlorine of 5-45 wt %. The elongation at break of the polyvinyl chloride composition of the present invention is greatly improved, and the defect of low elongations at break of polyvinyl chloride product is substantially solved accordingly, therefore, the application scope of polyvinyl chloride surely will be greatly widened.

主权项

1. A polyvinyl chloride composition, comprising the following components based on parts by weight:
(a) 100 parts polyvinyl chloride resin, and (b) 2-16 parts toughening modifier; wherein said toughening modifier is rubber powders with an elongation at break greater than 2201% and 5-45 wt % weight percentage of chlorine; said elongation at break is tested by GB/T528-2009; The weight percentage of chlorine is tested by the method A of GB/T7139-2002.