▎ 摘　　要

NOVELTY - Graphene composite material comprises 50-53 wt.% polycarbonate (PC), 20-23 wt.% acrylonitrile butadiene styrene (ABS), 3-5 wt.% flame retardant, 1-4 wt.% anti-aging agent, 3-6 wt.% toughening agent, 12-13 wt.% graphene and 8-10 wt.% adhesive. The composite material is prepared by firstly weighing PC, ABS, the flame retardant, the anti-aging agent and the toughening agent according to the weight percentage of each component, mixing uniformly in a stirring kettle, performing melt-extrusion and granulating the obtained mixture through an extruder, controlling the barrel temperature of the extruder at 250-270 degrees C, cooling the produced particles, returning to the stirring kettle, controlling the temperature of the stirring kettle to 120-150 degrees C, adding graphene and an adhesive, stirring at a high speed of 2500-3000 rpm, leaving still the mixture for greater than or equal to 30 minutes after sufficient dispersion and coating graphene on the surface of the particles. USE - The composite material is useful for a solar street lamp head casing. ADVANTAGE - The composite material has excellent heat dissipation performance, tensile strength and corrosion resistance and reduces weight. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the composite material involving adopting the preparation steps involved in the composite material.