▎ 摘　　要

NOVELTY - Preparation of graphene copper-based composite material comprises providing single layer of graphene oxide powder, tungsten carbide powder and copper powder, mixing single layer of graphene oxide powder, tungsten carbide powder and copper powder to obtain first mixed powder, performing first ball milling on first mixed powder to obtain second mixed powder, performing first reduction heat treatment on second mixed powder to obtain third mixed powder, performing first reduction heat treatment under hydrogen atmosphere, cooling by introducing low temperature nitrogen, performing second ball milling on third mixed powder to obtain fourth mixed powder, performing second reduction heat treatment on fourth mixed powder to obtain fifth mixed powder, performing second reduction heat treatment under hydrogen atmosphere, cooling by introducing low temperature nitrogen, pressing fifth mixed powder to obtain first sheet and performing vacuum heat pressing sintering on first plate. USE - Method of preparing graphene copper-based composite material. ADVANTAGE - The method enhances mechanical properties of composite material, reduces graphene oxide into graphene and has high yield. DETAILED DESCRIPTION - Preparation of graphene copper-based composite material comprises providing single layer of graphene oxide powder, tungsten carbide powder and copper powder, mixing single layer of graphene oxide powder, tungsten carbide powder and copper powder to obtain first mixed powder, performing first ball milling on first mixed powder to obtain second mixed powder, performing first reduction heat treatment on second mixed powder to obtain third mixed powder, performing first reduction heat treatment under hydrogen atmosphere at 300-350 degrees C for 3-5 minutes, cooling by introducing low temperature nitrogen, performing second ball milling on third mixed powder to obtain fourth mixed powder, performing second reduction heat treatment on fourth mixed powder to obtain fifth mixed powder, performing second reduction heat treatment under hydrogen atmosphere at 300-350 degrees C for 20-30 minutes, cooling by introducing low temperature nitrogen, pressing fifth mixed powder to obtain first sheet and performing vacuum heat pressing sintering on first plate.