| abstract |
The present invention relates to a method for producing a polylactic acid composite material composition, and more particularly, an optical isomer L type polylactic acid resin, an optical isomer D type polylactic acid resin and a poly (ethylene-alkyl acrylate-glycidyl methacryl). Rate) The present invention relates to a method for producing a polylactic acid composite material composition by melting and kneading a resin at 190 to 195 ° C and then injecting the resin into an injection mold having a surface temperature of 100 to 110 ° C. According to the present invention, the optical isomer L-type polylactic acid resin, the optical isomer D-type polylactic acid resin, and the poly (ethylene-alkyl acrylate-glycidyl methacrylate) resin are mixed in a specific blending ratio, and processing conditions and molding conditions are It is possible to obtain a material having excellent heat resistance, impact strength and tensile strength by controlling the petroleum material, and can replace the petroleum-based material, which has been used as an automobile parts material, with an eco-friendly bio-based bio material. The polylactic acid composite material composition can be usefully applied to interior and exterior materials for automobiles. |