▎ 摘　　要

NOVELTY - A thermal insulation composite material comprises heat conductive layer and thermal layer comprising first component containing graphene, carbon fibers, silicon carbide whiskers, boron nitride powder, aluminum nitride powder and anatase particles, and second component containing plasticizer, core-shell structured toughening agent, styrene-butadiene rubber, poly(methyl methacrylate), polycarbonate, flame retardants, organosilicon salts, stress cracking agent, lubricant, coupling agent, polyethylene terephthalate and polycarbonate. USE - Thermal insulation composite material. DETAILED DESCRIPTION - A thermal insulation composite material comprises heat conductive layer and thermal layer comprising first component containing 1-1.5 wt.% graphene, 1-3 wt.% carbon fibers, 1.5-5 wt.% silicon carbide whiskers, 8-20 wt.% boron nitride powder, 5-15 wt.% aluminum nitride powder and 1-5 wt.% anatase particles, and second component containing plasticizer, core-shell structured toughening agent, styrene-butadiene rubber, poly(methyl methacrylate), 0.5-3 wt.% polycarbonate, 0.1-0.25 wt.% flame retardants, organosilicon salts, 0.5-3 wt.% stress cracking agent, 0.1-2 wt.% lubricant, 0.2-0.5 wt.% coupling agent, 5-10 wt.% polyethylene terephthalate and 50-80 wt.% polycarbonate. An INDEPENDENT CLAIM is included for preparation of heat conductive layer comprising mixing inorganic filler and coupling agent to 20-50 degrees C at speed of 50-100 revolutions/minute (rpm), heating to 120 degrees C, stirring at speed of 400-800 rpm for 2-5 minutes, adding resin, mixing, adding unsaturated polyester and polycarbonate at 110-120 degrees C, air drying for 3-6 hours to moisture content of less than or equal to 0.02%, mixing silicon carbide, boron nitride, aluminum nitride and titanium dioxide, drying, adding saturated polyester and polycarbonate, mixing to 20-50 degrees C at speed of 100-800 rpm for 5-10 minutes, mixing thermally conductive filler material, graphene and carbon fibers, heating to 150-270 degrees C, melting, extruding using double-screw extruder, molding for 1.5-2.5 hours, cooling to room temperature and at 10-25 degrees C, cutting into thickness of 1.0-1.2 mm, granulating, and forming.