▎ 摘　　要

NOVELTY - Graphene modified bismaleimide resin laminated high toughness composite material comprises a co-cured bismaleimide resin prepreg layer and a graphene film layer. USE - The composite material is useful in aerospace and electronic information. ADVANTAGE - The composite material has light weight, high temperature resistance, mechanical properties and good electrical and thermal conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite material comprising (a) cutting bismaleimide resin prepreg and graphene film according to a die size, (b) soaking the cut bismaleimide resin prepreg and graphene film in 4-ethynyl aniline solution for 24-48 hours at room temperature, taking out and vacuum drying, (c) placing the cut bismaleimide resin prepreg and graphene film obtained in the step (b) on a mold In a sequence of intervals or without intervals to obtain paved composite material blank, and (d) curing the paved composite material blank by autoclave according to the co-curing system of graphene/bis-ma resin composite material, pressing by hot pressing tank, solidifying by using oven or other device, and demolding.