▎ 摘　　要

NOVELTY - Modified limestone powder comprises limestone powder, graphene, carbon black, glass fiber, anorthite, mullite, calcite powder, composition Flame retardant and impact modifier. USE - The modified limestone powder is useful for rubber filler (claimed). ADVANTAGE - The modified limestone powder: is simple to process, has good comprehensive performance; uses rubber filler in the preparation, which makes the rubber having high temperature resistance, flame retardant performance and good electrical conductivity and mechanical properties.