▎ 摘　　要

NOVELTY - Method for preparing graphene-nickel-carbon nanotube composite material involves (a) weighing graphene oxide, Triton-100 and soluble nickel salt according to the ratio, adding them to deionized water in sequence to prepare a mixed solution, and heating the mixed solution to 55-220 degrees C and keeping warm, (b) adding a reducing agent to the mixed solution kept in step (a), and adjusting the pH of the resulting mixed solution to 9-12 by using lye to obtain a reaction stock solution, continuously reacting the reaction stock solution at a constant temperature at 55-220 degrees C for 5-60 minutes, after the reaction is over, collecting the product to obtain a black powder, and (c) adding the black powder in step (b) in a tube furnace, passing a mixture of hydrogen and argon, heating the tube furnace to 300-500 degrees C for constant temperature pretreatment for 15-60 minutes, after the pretreatment, and collecting the product to obtain the graphene-nickel-carbon nanotube composite material. USE - The method is used for preparing graphene-nickel-carbon nanotube composite material which is used as a reinforcing filler in a heat dissipation coating (all claimed). ADVANTAGE - The method greatly avoids the agglomeration of graphene, effectively promotes the uniform dispersion of graphene in the resin matrix, effectively connects graphene sheets and promotes the establishment of a three-dimensional thermal network. DETAILED DESCRIPTION - Method for preparing graphene-nickel-carbon nanotube composite material involves (a) weighing graphene oxide, Triton-100 and soluble nickel salt according to the ratio, adding them to deionized water in sequence to prepare a mixed solution, and heating the mixed solution to 55-220 degrees C and keeping warm, (b) adding a reducing agent to the mixed solution kept in step (a), and adjusting the pH of the resulting mixed solution to 9-12 by using lye to obtain a reaction stock solution, continuously reacting the reaction stock solution at a constant temperature at 55-220 degrees C for 5-60 minutes, after the reaction is over, collecting the product to obtain a black powder, and (c) adding the black powder in step (b) in a tube furnace, passing a mixture of hydrogen and argon, heating the tube furnace to 300-500 degrees C for constant temperature pretreatment for 15-60 minutes, after the pretreatment, changing the reaction gas, and heating the tube furnace to 800-1000 degrees C, and reacting at a constant temperature for 5-30 minutes, after the reaction, collecting the product to obtain the graphene-nickel-carbon nanotube composite material. INDEPENDENT CLAIMS are included for the following: (1) a graphene-nickel-carbon nanotube composite material prepared by the above-mentioned method; and (2) a graphene-nickel-carbon nanotube composite reinforced resin heat dissipation coating comprising a reinforcing filler and a resin matrix, where the reinforcing filler is the graphene prepared by the above-mentioned method to nickel-carbon nanotube composite material.