▎ 摘　　要

NOVELTY - Preparing a high temperature resistant graphene composite material involves weighing 100 pts. wt. graphite, 4-14 pts. wt. calcium sulfonate, 0.1-0.5 pts. wt. fumed silica, 5-9 pts. wt. wollastonite powder, 0.5-2.5 pts. wt. sulfur, 30-50 pts. wt. castor oil, 6-10 pts. wt. styrene butadiene rubber, 15-35 pts. wt. trimethylolpropane polyether, 30-50 pts. wt. bis(2 ethylhexyl) phthalate (DOP), 40-80 pts. wt. high-density polyethylene (HDPE), 4-8 pts. wt. aluminum powder, 2-6 pts. wt. sulfurized isobutylene, 0.1-0.5 pts. wt. carboxymethyl cellulose, 1-5 pts. wt. nano silver powder and 3-7 pts. wt. flame retardant. The weight graphite, trimethylolpropane polyether and aluminum powder into a grinder for 15-55 minutes pass through a 100-300 mesh sieve, and then dry in an oven for 30-70 minutes, then with calcium sulfonate, gas phase dioxide. USE - Method for preparing a high temperature resistant graphene composite material. ADVANTAGE - The method enables to prepare a high temperature resistant graphene composite material, which has good mechanical property, good compression permanent deformation property, high temperature resistance, high energy density, Vicat softening point 160-200 degrees centigrade, good electrical conductivity, low dosage, high efficiency and energy-saving, simply supported beam loop hole 100-140kJ/m2 impact strength, and is convenient use and good thermal conductivity. DETAILED DESCRIPTION - The silicon, wollastonite powder and castor oil are put into a reaction kettle with a thermometer, a heating device and a stirring device, and the temperature is raised to 60-70 degrees C, stirred for 40-60 minutes, and the stirring speed is 400-600 revolution per minute to obtain the composite. The styrene-butadiene rubber, HDPE, sulfurized isobutylene and carboxymethyl cellulose are mixed with obtained composite, heating to 80-100 degrees C, constant temperature reaction for 60-100 minutes, stirring uniformly, and then into the twin-screw extruder for melt plasticization granulation and injection molding spline. The method further adding the remaining raw materials, mixing at 280-300 degrees C for 60-80 minutes, then into a tube furnace, calcined under nitrogen protection, and calcined and then allowed to stand for cooling.