▎ 摘　　要

NOVELTY - High stability calcium hydroxide/graphene nanocomposite comprises 3-10 wt.% graphene and balance of calcium hydroxide. USE - High stability calcium hydroxide/graphene nanocomposite. ADVANTAGE - The nanocomposite has simple, time-saving and controllable preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of high stability calcium hydroxide/graphene nanocomposite comprising preparing nano-calcium hydroxide powder and graphene oxide powder, dissolving 20-80 mg graphene oxide powder in 60 ml deionized water, adding 10-50 mg polyvinylpyrrolidone and 0.5-2 g nano-calcium hydroxide powder, pouring into 80 ml PTFE liner, closing with cylinder block, reacting in oven at 100-150 degrees C for 24-48 hours, centrifuging 3 times and dispersing in isopropyl alcohol.