▎ 摘　　要

NOVELTY - High-efficiency composite radiating material comprises 10-15 pts. wt. graphene hybrid powder, 55-80 pts. wt. second solvent, 50-70 pts. wt. high molecular polymer, 8-10 pts. wt. additive, 7.5-11.7 pts. wt. graphene powder, 15-20 pts. wt. graphene, 2-4 pts. wt. graphene oxide and 5-8 pts. wt. nanometre ceramic. The graphene hybrid powder is blended in the first solvent under ultrasonic and dried to obtain graphite mixed powder. USE - High-efficiency composite radiating material for semiconductor device (claimed). ADVANTAGE - The high-efficiency composite radiating material does not need efficient heat dissipation, has good radiating ability, lower conductivity relative and good insulation that satisfy most semiconductor device. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing which involves: (A) covering the insulating layer on the radiating layer of the material; (B) mixing the graphene, graphene oxide and nano-ceramic, and mixing graphite mixed powder to form net-like structure under ultrasonic agitation in the first solvent; (C) mixing at room temperature for preset time and heating the suspension obtained to make the solvent volatilize or most volatile to obtain graphene hybrid material; (D) drying at predetermined temperature for preset time and drying in the vacuum oven; and (E) preparing the insulating layer material to obtain high-efficiency composite radiating material.