▎ 摘　　要

NOVELTY - Method for preparing a graphene-reinforced porous aluminum-based composite material, involves (i) adding graphene into a benign organic solvent solution of methyl 2,6-diisocyanatohexanoate, and performing surface treatment in the presence of an organotin catalyst, (ii) reducing the surface treated graphene with hydrazine hydrate as a reducing agent to obtain modified graphene, (iii) placing the modified graphene in a closed system, introducing gas, and enabling the surface of the modified graphene to sufficiently adsorb gas under the action of an external negative electric field, (iv) dispersing the gas adsorbed modified graphene in the hexamethylphosphoramide, adding aluminum alloy powder, ball milling in a ball mill, and drying to obtain a mixed powder, and (v) performing selective laser melting forming on the mixed powder under an inert environment to form the composite material. USE - The method is useful for preparing a graphene-reinforced porous aluminum-based composite material. ADVANTAGE - The method improves the uniformity of dispersion of graphene in the aluminum matrix, improves the interface binding performance of graphene and aluminum matrix, and prepares a porous metal composite material with rich and uniform internal pore structure.