11 PLA Toughened PLA compositions containing polyamide 11 based thermoplastic elastomer and preparation method thereof

摘要

The present invention relates to a method for preparing a toughened PLA composition containing an elastomer based on polyamide 11. More specifically, a polyamide 11-based elastomer prepared by condensation reaction of a diamine terminal group-containing polyamide 11 prepared from a vegetable oil-derived 11-aminoundecanoic acid derivative with a dimer acid derivative prepared from a vegetable oil-derived fatty acid methyl ester was prepared. And it relates to a toughened PLA composition prepared by blending it with PLA. The polyamide elastomer alternating copolymer according to the present invention has improved impact strength depending on the heating temperature, so it can be used in various ways as automobile materials, electrical and electronic materials, hot melt adhesives, etc. In particular, the polyamide 11-based copolymer according to the present invention Elastomer alternating copolymer resin is a very effective thermoplastic elastomer to solve the brittle problem of PLA and improve toughness through blending with PLA.