▎ 摘　　要

NOVELTY - Preparation of graphene fiber by heating split graphite oxide thin film, involves cutting the graphite oxide thin film into continuous oxidation graphite fiber, subjecting the continuous oxidation graphite fibers to spray air twisting, placing a high-frequency electromagnetic heating tube in a position 10 cm away from the nozzle and heating the twisted fibers of graphite oxide, converting the oxidized graphite fibers into graphene fibers, outputting the obtained graphene fiber to winding and forming device, and forming graphene fibers directly with the strip twist. USE - Preparation of graphene fiber by heating split graphite oxide thin film (claimed). ADVANTAGE - The preparation method is simple and convenient in operation process. Pure graphite oxide composite film of graphene fiber can be directly obtained without subsequent processing and removing impurities. The graphene sheets are closely combined, so that the graphene fiber exhibits good appearance, uniform internal structure and excellent mechanical properties. DETAILED DESCRIPTION - Preparation of graphene fiber by heating split graphite oxide thin film, involves cutting the graphite oxide thin film with the film cutting machine into continuous oxidation graphite fiber, subjecting the continuous oxidation graphite fibers to spray air twisting per 1-10 fluid nozzles, placing a high-frequency electromagnetic heating tube in a position 10 cm away from the nozzle and heating the twisted fibers of graphite oxide, converting the oxidized graphite fibers into graphene fibers, outputting the obtained graphene fiber to the winding and forming device, and forming graphene fibers directly with the strip twist.