▎ 摘　　要

NOVELTY - Modified limestone powder comprises 80-100 pts. wt. limestone powder, 13-20 pts. wt. graphene, 20-25 pts. wt. calcite powder, 3-7 pts. wt. clarifying agent, 5-10 pts. wt. magnesium oxide, 3-8 pts. wt. aluminum oxide, 1-3 pts. wt. copper oxide, 3-5 pts. wt. silane coupling agent, 15-25 pts. wt. quartz sand, 3-8 pts. wt. sodium tetraborate, 3-9 pts. wt. composite flame retardant and 1-3 pts. wt. impact modifier. USE - The modified limestone powder is useful for glass (claimed). ADVANTAGE - The modified limestone powder: has simple preparation process; and provides the glass prepared having excellent mechanical and flame retardant properties, high transparency and beautiful appearance, excellent thermal insulating, waterproof and anti-seismic properties, and low thermal weight loss.