POLYLACTIC ACID/ACRYLONITRILE-BUTADIENE-STYRENE COPOLYMER ALLOY RESIN COMPOSITION

摘要

The present invention relates to a polylactic acid/acrylonitrile-butadiene-styrene copolymer alloy resin composition including: (1) 30 to 90 parts by weight of a polylactic acid resin; and (2) 70 to 10 parts by weight of the acrylonitrile-butadiene-styrene copolymer resin. The (1) polylactic acid resin includes: a hard segment including a polylactic acid repeating unit of chemical formula 1; and a soft segment including a polyolefin-based repeating unit where polyolefin-based polyol constituent units of chemical formula 2 are linearly or basinally connected with a urethane combination or an ester combination as a medium. The present invention relates to the polylactic acid/acrylonitrile-butadiene-styrene copolymer alloy resin composition which has greater than or equal to 60 weight% of an organic carbon content (%Cbio) of a biomass origin defined as a math formula 1. According to the present invention, the polylactic acid/acrylonitrile-butadiene-styrene copolymer alloy resin composition enables to show improved impact resistance, and to be usefully used as a material of a shaped product since superb general properties such as thermal resistance, water resistance, a mechanical property, injection machinability, etc. are excellent, as well as significantly contributing to preventing environmental pollution with an eco-friendly feature.