▎ 摘　　要

NOVELTY - Preparing graphene by physical peeling method comprises taking high-purity flaky graphite as raw material, taking steel balls and zinc-magnesium alloy powder as ball-milling medium, adding flaky graphite and ball milling medium into a ball mill, ball milling under inert gas protection, exfoliating, peeling off the graphene flakes by the ball mill and separating by an air stream under the protection of an inert gas, where the steel balls are preferably 304 stainless steel balls. USE - The method is useful for preparing graphene by physical peeling method. ADVANTAGE - The method is simple and does not generate pollution.