▎ 摘　　要

NOVELTY - An alloy material comprises 100 pts. wt. polycarbonate resin, 18-25 pts. wt. modified aluminum-coated magnesium oxide powder, 12-16 pts. wt. surface modified aluminum oxide powder, 5-8 pts. wt. rutile type titanium dioxide, 6-12 pts. wt. modified graphene, 3-8 pts. wt. composite plasticizer, 3-6 pts. wt. composite flame retardant, 8-20 pts. wt. compatibilizer, 1.5-2.5 pts. wt. silane coupling agent, 0.5-1.5 pts. wt. antioxidant, 0.5-1.2 pts. wt. anti-dripping agent, and 1.5-2 pts. wt. UV-light absorbent. USE - Alloy material. ADVANTAGE - The alloy material has good mechanical, thermal, optical and electrical performances. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of alloy material comprising mixing modified aluminum-coated magnesium oxide powder, surface modified aluminum dioxide powder and rutile type titanium dioxide, stirring, adding polycarbonate resin, adding to high-speed mixer, synchronously adding remaining raw materials, stirring for 120-160 minutes, adding to double-screw extruder, extruding at 180-360 degrees C at speed of 120-500 revolutions/minute, and discharging.