▎ 摘　　要

NOVELTY - Grinding medium comprises 30-45 wt.% amphiphilic polymer, 25-30 wt.% nano-modified hydrotalcite, 10-15 wt.% micro-expansion agent, 5-15 wt.% binder, 5-10 wt.% cyclodextrin, and 5-10 wt.% urea. USE - Grinding medium used for slurry grinding and stripping to prepare graphene (claimed). ADVANTAGE - The grinding medium reduces usage of organic solvent during grinding process, and its graphene stripping efficiency is improved by not less than 40%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of grinding medium comprising dispersing amphiphilic polymer and nano-modified hydrotalcite in mixed solution of ethanol and water with 1:1-2 volume ratio, adding micro-expansion agent and urea into mixed solution, stirring at 300-800 revolutions/minute speed for 10-30 minutes, drying mixture, feeding mixture into fluidized bed from its lower portion, adding binder and cyclodextrin, increasing air flow rate to coat mixture with binder and cyclodextrin, and drying product.