▎ 摘　　要

NOVELTY - Carbon nanotube fibers are prepared using wet modified carbon nanotube fibers. Graphene is provided to an aqueous solution, to form uniformly dispersed graphene dispersion liquid under the action of ultrasonic wave. Dispersant is added to the graphene dispersion liquid and stirred uniformly. The obtained carbon nanotube fibers and graphene dispersion liquid are completely contacted, such that graphene covers the surface of carbon nanotube fibers. The obtained product is then dried to obtain carbon nanotube fibers-graphene composite material. USE - Manufacture of carbon nanotube fibers-graphene composite material (claimed). ADVANTAGE - The method efficiently provides carbon nanotube fibers-graphene composite material having mechanical property and electrical property.