▎ 摘　　要

NOVELTY - Complex fiber comprises ferrous alloy fiber surface coated with graphene. USE - Used as complex fiber. ADVANTAGE - The product has good conductivity and is corrosion resistant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing complex fiber comprising preparing graphene derivative solution, coating the graphene derivative solution on a ferrous alloy fiber surface to obtain graphene layer of iron based alloy complex fiber, microwave heating at high temperature process and the surface of the graphene derivative layer is converted into graphene by microwave at a set speed motion complex fiber under the atmosphere, cooling and extruding to obtain the product.