▎ 摘 要
NOVELTY - Preparing graphene material by stretching comprises (i) mixing graphite powder and binder according to mass ratio of 1:2-5, adding in a stirrer, mixing, so that graphite powder full disperse to form homogenizing mixture, size of graphite powder is 1-100 mu m, (ii) adding crosslinking agent in homogenized mixture, stirring, coating, using the mixture to flexible can applied to the flexible elastic thin film surface, wait for adhesive curing agent, and (iii) stretching flexible and elastic thin film using graphite powder internal bear cutting force, graphite powder by peeling off opening. USE - The method is useful for preparing graphene material by stretching (claimed). ADVANTAGE - The method has no pollutant, is simple, economical, and is suitable for large scale production.