▎ 摘　　要

NOVELTY - Preparing graphene-modified carbon fiber composite material comprises (i) etching the carbon fiber to obtain surface porosity; (ii) dip coating the carbon fibers with a graphene aqueous solution and using a negative pressure to promote the graphene aqueous solution into the surface pores and the gap between the carbon fibers during dip coating; (iii) drying the dip coated carbon fiber; (iv) coating the carbon fiber with an epoxy resin layer to obtain a composite unit; and (v) laminating multiple composite materials to obtain a composite material and aligning two adjacent composite material units. USE - The method is useful for preparing graphene-modified carbon fiber composite material. ADVANTAGE - The composite material has good bonding force between layers and puncture resistant ability.