▎ 摘　　要

NOVELTY - The method involves providing single-layer graphene oxide nano sheet, carboxylated multi-wall carbon nano-tube powder used as raw material, through mixing to obtain graphene oxide-carbon nano-tube solution. The hexadecyl trimethyl ammonium bromide modified copper powder is added, graphene oxide-carbon nano tube/copper-based composite powder obtained by reducing heat. The graphene-carbon nano tube/copper-based composite powder is added into the tungsten carbide mold and is put into a discharge plasma sintering furnace, sintered and molded under the vacuum condition to obtain the graphene carbon nano tube/copper composite material. The heating speed is 100 degrees centigrade/min. The sintering temperature is 800 degrees centigrade. The sintering pressure is 70MPa. The temperature for 6min is kept and cooled with the furnace. USE - Method of preparing graphene-carbon nano tube/copper-based composite material for performing uniform dispersion of graphene-carbon nano-tube in copper substrate. ADVANTAGE - The composite material realizes the uniform dispersion of the graphene-carbon nano-tube in the copper substrate. The three-dimensional net-shaped hybrid structure constructed by graphene and carbon nano-tube improves the mechanical property and friction performance of the composite material and ensure the composite material has good conductive performance through the synergistic effect. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene oxide-carbon nano tube/copper-based composite powder.