▎ 摘　　要

NOVELTY - Preparation of high beta -crystalline polyvinylidene fluoride-graphene composite involves mixing polyvinylidene and 0-0.1 %mass graphene and preparing polyvinylidene fluoride/graphene composite sheet by melting and molding method. The melting is carried out at 230-250 degrees C with constant stretching speed. The increased stress results in formation of an alpha - beta form from a pure state. USE - Preparation of high crystalline polyvinylidene fluoride-graphene composite. ADVANTAGE - The preparation of high crystalline polyvinylidene fluoride-graphene composite is simple, convenient and efficient.