▎ 摘　　要

NOVELTY - The method involves paving an ultra-thin prepreg raw material to an engineering mold. Oxidized graphene powder is added into water. A mechanical stirring and ultrasonic auxiliary method is used for primary dispersion to obtain oxidized graphene solution i.e. organic solvent. The oxidized graphene solution is continuously and fully dispersed through the ultrasonic auxiliary method to obtain 8-12 mg/ml of uniformly dispersed oxidation graphene solution. Self-repairing particle micro-capsule powder is added into the oxidized graphene solution. A surface modified fiber prepreg is paved into a thick stack along a single direction. The surface modified fiber prepreg is put into a vacuum bag and a hot pressing tank for ensuring the vacuum bag with good sealing performance after hot pressing forming to obtain a nano modified laminated plate. USE - Method for preparing an interlayer graphene toughened carbon fiber reinforced polymer (CFRP) composite material laminated plate. ADVANTAGE - The method enables realizing high operability, obvious enhancement effect, large-scale industrial popularization, and digital automatic control function. The method enables reducing the mechanical characteristics of the composite material by the nano-scale oxidation graphene self-repairing micro-particle blending. The method enables improving the composite material performance and certain self-repairing ability, modifying the carbon fiber reinforced resin-based composite material, and toughening the field with wide application prospect. The method enables realizing the blending and multi-stage dispersion of the high quality percentage of the oxide-graphene nano particles and graphene oxide sheet, and effectively solving the cluster problem of high quality percent nano particles, so that the nano particles can be uniformly dispersed in the interlayer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an interlayer containing multifunctional micro-nano particles of CFRPs laminated sketch map and graphene oxide sheet and self-repairing micro-particle blending to form the interface modified layer. (Drawing includes non-English language text).