▎ 摘　　要

NOVELTY - Polypropylene composition comprises 70-99.8 pts. wt. polypropylene resin, 0-30 pts. wt. toughening agent, 0.3-0.7 pts. wt. graphene, and 1-5 pts. wt. compatibilizer, where the compatibilizer is maleic anhydride grafted PP wax. USE - The polypropylene composition is useful in preparation of automobile plastic interior trim parts (claimed). ADVANTAGE - The polypropylene composition has simple preparation, light weight and sound insulation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the polypropylene composition, comprising mixing the components uniformly, adding into a twin-screw extruder for melt extrusion and granulation.