▎ 摘　　要

NOVELTY - A graphene and high temperature inorganic salt phase change composite material preparation method involves dispersing graphite oxide in water and processing, to obtain a mixed liquid. The obtained mixture is centrifuged. Supernatant layer is collected. Water is added to callose and centrifuged, to obtain graphene sol-gel. The graphite alkene solution and inorganic salt solution are stirred, to obtain a composite material. The obtained material is frozen into solid material, dried and calcinated, to obtain graphite alkene and inorganic salt phase change composite material. USE - Method for preparing graphene and high temperature inorganic salt phase change composite material for industrial production. ADVANTAGE - The method enables preparing graphene and high temperature inorganic salt phase change composite material in a simple and economical manner. The graphene and the composite material have high heat coefficient and energy density. DETAILED DESCRIPTION - A graphene and high temperature inorganic salt phase change composite material preparation method involves dispersing graphite oxide in deionized water in an ultrasonic cell crusher and processing, to obtain a mixed liquid. The obtained mixed liquid is centrifuged. Supernatant layer, which is monolayer oxidized graphite, is collected by sol-gel dispersion phase. Water is added to callose, reacted at 20-30 degrees C for 0.5-3 hours and centrifuged at 4000 rpm for 5-20 minutes, to obtain graphene sol-gel. An inorganic salt solution having concentration of 5-9 mg/ml and surfactant are uniformly mixed. The graphite alkene solution and the inorganic salt solution are stirred uniformly, to obtain a composite material. The obtained material is completely frozen by ultra fast-freezing low-temperature refrigerator into a solid material. The obtained solid material is dried in a vacuum freeze dryer at room temperature for 8-10 days, and calcinated for complete moisture removal, to obtain graphite alkene and inorganic salt phase change composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating a method for preparing graphene and high temperature inorganic salt phase change composite material.'(Drawing includes non-English language text)'