▎ 摘　　要

NOVELTY - Stripping graphite intercalation substance comprises placing graphite intercalation substance in a stripping container, introducing stripping agent solution into the stripping container, and performing stripping reaction. The concentration of the stripping agent solution introduced into the stripping container is gradually increased. USE - The method is useful for stripping graphite intercalation substance to prepare grapheme, which is useful in composite fiber (claimed). ADVANTAGE - The method: is safe and stable. The prepared graphene has high purity, low oxygen content and uniform size; and improves the anti-ultraviolet effect of the composite fiber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene prepared by above method. The graphene contains 0-5 wt.%, preferably 0.5-2 wt.% oxygen.