▎ 摘　　要

NOVELTY - Polycarbonate composite material comprises 55-80 pts. wt. silicon copolymer PC, 10-20 pts. wt. polyethylene terephthalate glycol (PETG), 5-10 pts. wt. Arsenic, 2-5 pts. wt. hollow glass micro-beads, 0.1-0.4 pts. wt. graphene, 2-5 pts. wt. toughening agent, 1-5 pts. wt. compatibilizer, 0.2-0.6 pts. wt. antioxidant, 0.2-0.6 pts. wt. lubricant, 0.2-0.5 pts. wt. light aging agent and 0.5-2 pts. wt. organic high light black powder. USE - Used as polycarbonate composite material. ADVANTAGE - The polycarbonate composite material has high gloss and high surface hardness, high gloss characteristics, high material surface, good scratch resistance effect, and high temperature resistance, and mechanical property, and satisfies the application in extreme environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparing polycarbonate composite material with high gloss and high surface comprising (1) drying the graphene dispersed, mixing with the hollow glass micro-bead into the high speed mixer, pre-mixing for 5-15 minutes at 40-60degrees Celsius, to obtain the hollow glass micro-bead uniformly mixed and surface with graphene, (2): adding silicon copolymerization PC, PETG and AS in 80-100degrees Celsius oven and drying for 2-4 hours, taking out, adding dried silicon copolymerization PC, PETG, AS, toughening agent, compatibilizer, antioxidant, lubricant to the high-speed mixer in the step (1), light aging agent and organic high light black powder raw material, continuously mixing for 10-15 minutes at 40-60degrees Celsius, to obtain the mixture, (3) adding the mixture in the step (2) into the main feeding cylinder of the double-screw extruder, mixing by double-screw extruder, melting, extruding, extruding temperature of each area of the double-screw extruder is 170-250degrees Celsius, the screw speed is 300-500 rotations/minutes, extruding strip, water cooling, granulating to obtain polycarbonate composite granules, (4) using the polycarbonate composite granules obtained in the step (3) in 80-120degrees Celsius oven and drying for 4-6 hours, taking out at 220-260degrees Celsius temperature lower injection molding machine injection processing dry, preparing the corresponding standard sample strip to obtain the high gloss high-surface hardness polycarbonate composite material.