▎ 摘 要
NOVELTY - Composite fiber comprises graphene and ultra-high-molecular-weight polyethylene in a ratio of (0.5-3):100, preferably 2.5:100. USE - Composite fiber used for preparing shear-resistant material, damping material, cut-resistant gloves, shock absorbing material and bullet-proof helmet (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing Composite fiber, which involves milling graphene and ultra-high-molecular-weight polyethylene to obtain powder, and coating graphene over surface of ultra-high-molecular-weight polyethylene, and spinning obtained product to obtain final product.