▎ 摘　　要

NOVELTY - The preparation of graphene-reinforced copper-based composite material involves taking a pure copper sheet, and removing oil stain on a surface of an oxide film, dispersing graphene in ethanol, and ultrasonically vibrating to obtain graphene-ethanol suspension, uniformly coating on the processed pure copper sheet surface, after ethanol is completely volatilized, overlapping the pure copper sheet with graphene, aligning graphene coated surface, folding in half, rolling, folding, rolling, and repeating the folding-rolling pass, spark plasma sintering the rolled samples. USE - Preparation method of graphene-reinforced copper-based composite material for use as high-conductive material (claimed). ADVANTAGE - The method enables preparation of graphene-reinforced copper-based composite material by simple, economical and industrial process. DETAILED DESCRIPTION - The preparation method of graphene-reinforced copper-based composite material involves (1) taking a pure copper sheet of uniform thickness, and removing oil stain on a surface of an oxide film, (2) dispersing graphene in ethanol, and ultrasonically vibrating to obtain graphene-ethanol suspension, uniformly coating the graphene-ethanol suspension on the processed pure copper sheet surface, after ethanol is completely volatilized, overlapping the pure copper sheet with graphene, aligning graphene coated surface, folding in half, rolling 1 time, folding, rolling 1 time, and repeating the folding-rolling pass, where the rolling reduction of the rolling sample thickness is greater than or equal to 50%, and (3) spark plasma sintering the rolled samples under the protection of inert gas. INDEPENDENT CLAIMS are included for the following: (1) graphene-reinforced copper-based composite material; and (2) use of graphene-reinforced copper-based composite material as high-conductive material.