▎ 摘　　要

NOVELTY - A multifunctional graphene and dimethyl silicone polymer composite material is prepared by placing copper foam as template in a quartz tube, sealing the tube, heating while introducing argon gas, growing the graphene in the presence of methane and hydrogen gas, annealing in the presence of argon, and cooling to room temperature in the presence of argon to obtain graphene structure template; and adding polydimethylsiloxane, sealing, heating at 80-90?C, adding polydimethylsiloxane, adding clean water, cleansing with ammonium sulfate, and drying. USE - Method of preparing a multifunctional graphene and dimethyl silicone polymer composite material. DETAILED DESCRIPTION - A multifunctional graphene and dimethyl silicone polymer composite material is prepared by: (A) placing copper foam as template in a quartz tube, sealing the tube, heating at 950-1000 degrees C and pressure of 10-15 Pa while introducing argon gas to the tube for 30-40 minutes, growing the graphene in the presence of methane and hydrogen gas, annealing in the presence of argon, and cooling to room temperature in the presence of argon to obtain graphene structure template; (B) adding polydimethylsiloxane, sealing, heating at 80-90?C, adding polydimethylsiloxane, adding clean water, cleansing with ammonium sulfate (0.5-0.7 mol/l), and drying to obtain porous foamed graphite oxide composite material; and (C) filling the composite material with polydimethylsiloxane, placing in a tube, heating at 80-90 degrees C, and cooling to room temperature.