▎ 摘　　要

NOVELTY - Method for preparing heat-conducting composite material comprises filling the wax graphene sheet particles wrapped with wax in the resin material, melting and blending to obtain the heat-conducting composite material. USE - The method is useful for preparing heat-conducting composite material, which is used in electronic device. ADVANTAGE - The method : adopts wax graphene sheet as heat-conducting filler of the resin substrate, which not only improves the dispersion graphene in the resin, but also improves the filling graphene of the resin; adopts high shear strength of double-screw extruder, which promotes fully fusion of resin and graphene, and forming a large area of heat conduction path, and improves the thermal conductivity of the composite material.