▎ 摘　　要

NOVELTY - Preparing functionalized graphene composite fiber involves adding the graphene nanosheet into molten polymer material for melt-kneading to obtain graphene nanosheet and mixing macromolecular material to obtain the mixture A, where content of the graphene nanosheets is 20-30 wt.% based on 100 wt.% of total weight of the mixture A, granulating the mixture A to obtain graphene composite masterbatch. USE - Method for preparing functionalized graphene composite fiber used for processing into electrode and assembled Into super capacitors, metal ion batteries, solar cells or sensors or fabric for antibacterial, antistatic, infrared self-heating, electrical conductivity, electrical heating, electromagnetic wave absorption and shielding (claimed). ADVANTAGE - The method enables to prepare functionalized graphene composite fiber which has certain strength, flexibility and hygroscopicity. DETAILED DESCRIPTION - Preparing functionalized graphene composite fiber involves adding the graphene nanosheet into molten polymer material for melt-kneading to obtain graphene nanosheet and mixing macromolecular material to obtain the mixture A, where content of the graphene nanosheets is 20-30 wt.% based on 100 wt.% of total weight of the mixture A, granulating the mixture A to obtain graphene composite masterbatch, grafting the graphene composite masterbatch with a polymer material to obtain final product, content of the graphene nanosheets is 1-4 wt.% based on 100 wt.% of the total weight of functionalized graphene composite fiber.