▎ 摘　　要

NOVELTY - Composite powder containing graphene comprises core-shell particles and graphene dispersed between the core-shell particles, where the core-shell particles comprises infrared high-reflecting particles and metals and the metal is coated on the surface of the infrared high-reflecting particles to form a metal shell, and the mass ratio of the infrared high-reflecting particles, metal and graphene is 70-98:1-20:1-10. USE - The composite powder is useful for thermal insulation and energy saving composite slurry and composite film (claimed). ADVANTAGE - The composite powder has good heat-insulating and energy-saving conductivity, improves the electron transporting ability and reflecting ability of infrared ray, realizes total reflection of the infrared ray but not the conventional diffuse reflection, reduces the substrate to infrared absorption and transmission. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite powder containing graphene comprising dispersing the graphene and infrared high-reflecting particles in the metal salt solution to obtain mixed solution, adding pH regulator, stabilizer, complexing agent and reducing agent and reacting to obtain mixture reaction liquid, adding the metal salt reduction reaction into the infrared high-reflecting particles on the surface of the metal shell and separating the reaction liquid to solid-liquid.