▎ 摘　　要

NOVELTY - A two-dimensional material-fiber composite modifier comprises two-dimensional material and fiber material. The two-dimensional material is white graphene, graphene, graphene oxide, montmorillonite, molybdenum disulfide, and/or tungsten disulfide. The fiber material is mullite fiber, glass fiber, aramid fiber, ceramic fiber, carbon fiber, and/or carbon nanotube. USE - The two-dimensional material-fibre composite modifying agent is useful in a resin composite bonding agent, a grinding material and a grinding tool. ADVANTAGE - The two-dimensional material-fiber composite modifier enhances the toughness and heat resistance of the resin bonding agent, improves the holding force of the grinding material, effectively improves the wear-resisting time, does not affect the grinding block sharpness, and prolongs the resin grinding tool wear-resistant service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparation method of the two-dimensional material-fiber composite modifier comprising mixing the two-dimensional material and fiber material, and performing surface lipophilic modification and/or branch treatment, or mixing the two-dimensional material and/or fiber material with dispersant and coupling agent, modifying, then drying, where the coupling agent is silane coupling agent and/or titanate coupling agent, and the silane coupling agent is amino silane coupling agent; (2) modified resin bonding agentcomprising resin and the two-dimensional material-fiber composite modifier; (3) modified grinding material comprising the modified resin binding agent, grinding material and auxiliary filler; (4) grinding tool comprising the modified abrasive; and (5) preparation method of the grinding tool.