▎ 摘　　要

NOVELTY - The preparation method of reinforced polyimide composite material involves ultrasonically dispersing graphene oxide and carboxylated carbon nanotube in organic solution, adding N,N'-dicyclohexylcarbodiimide or 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide condensing agent to the mixture and then stirring, adding organic substance-containing amino groups to the mixture and then reacting at 50-150 degrees C for 1-24 hours, adding dianhydride monomer, diamine monomer and organic solvent to the mixture and then polymerizing, molding the mixture and heat treating. USE - The method is useful for preparation of reinforced polyimide composite material. ADVANTAGE - The method enables preparation of reinforced polyimide composite material with excellent synergistic effect, mechanical properties and thermal stability.