Medium-temperature phase change composite heat storage material capable of improving quality and efficiency and preparation method of medium-temperature phase change composite heat storage material

• Main Authors: CHEN BINGNAN, LIU JUN, NAN DING, WANG LIMING, SUN ZHIXIN
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention relates to a medium-temperature phase change composite heat storage material capable of improving quality and efficiency and a preparation method of the medium-temperature phase change composite heat storage material; and aims to improve the supercooling degree and the thermal conductivity.The medium-temperature phase-change composite heat storage material is a solidified body formed by uniformly mixing erythritol in a molten state, carbon fibers and carbon particles; and the weight ratio of the erythritol to the composite carbon material is 100:1-2, the weight ratio of carbon fibers to carbon particles in the composite carbon material is 1: 1-7: 3. The carbon fibers are carbon fiber byproducts generated in the turning machining process of a carbon fiber crucible, and the carbon particles are deposited carbon obtained through deposition in the production process of the carbon fiber crucible. The medium-temperature phase-change composite heat storage material is a demolded solidified body which i