▎ 摘　　要

NOVELTY - A graphene oxide modified composite phase change microcapsule is prepared by taking graphite powder, sodium nitrate, potassium permanganate, concentrated sulfuric acid and deionized water, reacting with absolute ethanol and silane coupling agent, mixing with phase change material, reaction monomer, crosslinker, reactive emulsifier and deionized water, ultrasonically dispersing, hot water bath heating, continuously stirring, adding initiator aqueous solution, and keeping temperature and reacting. USE - Method for preparing graphene oxide modified composite phase change microcapsule (claimed). ADVANTAGE - The product is suitable for phase transition temperature and high phase change latent heat content, and has high encapsulating efficiency, stable property and good heat conductivity. DETAILED DESCRIPTION - A graphene oxide modified composite phase change microcapsule is prepared by taking graphite powder, sodium nitrate, potassium permanganate, concentrated sulfuric acid and deionized water to prepare graphene oxide solid, reacting with absolute ethanol and silane coupling agent to obtain double bond modified functionalized graphene oxide solid, mixing with phase change material, reaction monomer, crosslinker, reactive emulsifier and deionized water, ultrasonically dispersing to form oil-in-water emulsion, hot water bath heating, continuously stirring, adding initiator aqueous solution, and keeping temperature and reacting.