▎ 摘　　要

NOVELTY - Preparation of carbon fiber sizing agent involves modifying glycidyl amine epoxy resin using a modifier comprising amino group and alcoholic hydroxyl group, obtaining hydrophilic glycidyl amine epoxy resin, mixing resultant with a diluent and an emulsifier, stirring, dripping graphene oxide aqueous solution, and reacting. USE - Preparation of carbon fiber sizing agent (claimed). ADVANTAGE - The method enables simple and environmentally-friendly preparation of carbon fiber sizing agent having excellent stability. The carbon fibers processed using the sizing agent have excellent wear resistance, rupture strength and heat resistance.