▎ 摘　　要

NOVELTY - Preparing polyacrylonitrile fibers involve adding acrylonitrile to graphene concentrated solution and carrying out in situ polymerization through wet spinning dope to obtain polyacrylonitrile fibers. The graphene concentrated solution is prepared by dissolving aqueous titanate in water and then adding ultra-fine graphene powder in magnetic field of ultrasonic dispersion to obtain graphene dispersion. The graphene dispersion is subjected to distillation or vacuum distillation under applied magnetic field to obtain graphene concentrated solution. USE - Method for preparing polyacrylonitrile fibers (claimed). ADVANTAGE - The method enables to prepare polyacrylonitrile fibers that are thermally conductive and have high performance.