▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide/polyacrylonitrile composite fiber involves assembling graphene oxide on surface of amine-containing polyacrylonitrile fibers by electrostatic attraction and chemical bonding to perform reduction treatment. USE - Preparation of reduced graphene oxide/polyacrylonitrile composite fiber (claimed). ADVANTAGE - The method enables economical preparation of reduced graphene oxide/polyacrylonitrile composite fiber having excellent reduction effect, durability, electroconductivity and mechanical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for reduced graphene oxide/polyacrylonitrile composite fiber, which has average volume resistivity of 30 Omega .cm or less, fracture strength with respect to original fiber reduced by 5% or less, and elongation at break with respect to original fabric increased by 58% or more. After washing with deionized water by 10-20 times, and drying the composite fiber, the average volume resistivity of the composite fiber is 33 Omega .cm or less.