▎ 摘　　要

NOVELTY - Graphene toughening acrylonitrile butadiene styrene composite material comprises acrylonitrile butadiene styrene and spitball graphene microsphere, where the spitball graphene microsphere composed of single layer graphene sheet wrinkles, the diameter of the microsphere is 500nm to 5 mu m, the density is 0.2-0.4 g/cm3, the carbon/oxygen ratio is 20-60, and specific surface area is not less than 200 m2/g. USE - Used as graphene toughening acrylonitrile butadiene styrene composite material. ADVANTAGE - The graphene toughening acrylonitrile butadiene styrene composite material: has excellent heat resistance property, antiaging property and flame retardant property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene toughening acrylonitrile butadiene styrene composite material, comprising (1) mixing uniformly acrylonitrile butadiene styrene and graphene microsphere to obtain acrylonitrile butadiene styrene/graphene composite material premix, where the molar ratio between acrylonitrile butadiene styrene and graphene microsphere is 100:0.05-0.5, and (2) carrying out melt blend extruding of the composite material premix in a twin-screw extruder at 190-230 degrees C at a rotating speed of 100-200 revolutions/minute, then cooling, and granulating to obtain final product.