▎ 摘　　要

NOVELTY - Method for preparing a light and high-strength carbon fiber composite material involves (a) (a1) using acetone as a solution, carrying out surface treatment on carbon fibers to remove the surface sizing agent, and then performing oxidation treatment to obtain pretreated carbon fibers, (a2) dispersing Mxene/polyhedral oligomeric silsesquioxane (POSS) in tetrahydrofuran, stirring evenly, adding pretreated carbon fiber, and stirring, (a3) dispersing graphene oxide into N,N-dimethylformamide, stirring evenly, adding Mxene/POSS modified carbon fiber, refluxing and stirring, (a4) using the layer-by-layer self-assembly method to obtain the modified carbon fiber, and (b) after infiltrating the modified carbon fiber and the epoxy resin matrix, obtaining a prepreg, and superimposing the prepreg and curing by hot pressing to obtain a carbon fiber composite material. USE - Preparation method of carbon fiber composite material used in sports equipment such as board type sports equipment, and martial art equipment. Uses include but are not limited to tennis racket frame, supporting rod, and supporting rod jumping movement. ADVANTAGE - The method provides light and high strength carbon fiber composite material, which improves the interface performance between the carbon fiber and the resin matrix. DETAILED DESCRIPTION - Method for preparing a light and high-strength carbon fiber composite material involves(a) (a1) using acetone as a solution, carrying out surface treatment on carbon fibers to remove the surface sizing agent, and then performing oxidation treatment to obtain pretreated carbon fibers, (a2) dispersing Mxene/polyhedral oligomeric silsesquioxane (POSS) in tetrahydrofuran, stirring evenly, adding pretreated carbon fiber, and stirring at 70-80℃ to obtain Mxene/POSS modified carbon fiber, (a3) dispersing graphene oxide into N,N-dimethylformamide, stirring evenly, adding Mxene/POSS modified carbon fiber, refluxing and stirring at 70-80℃ to obtain graphene oxide modified carbon fiber, (a4) using the layer-by-layer self-assembly method, alternately performing steps (a2) and (a3) on the graphene oxide modified carbon fiber to obtain the modified carbon fiber, and (b) after infiltrating the modified carbon fiber and the epoxy resin matrix, obtaining a prepreg, and superimposing the prepreg and curing by hot pressing to obtain a carbon fiber composite material.