▎ 摘　　要

NOVELTY - An inorganic hydrous salt phase-change material composition comprises inorganic hydrated salt, nucleating agent combination, thickener and corrosion inhibitor that are mixed and stored or independently stored. The nucleating agent combination is first nucleating agent, second nucleating agent and third nucleating agent with weight ratio of 1:0.1-1:0.1-1. The first nucleating agent is sodium salt. The second nucleating agent contains active ingredient and coating body covered on surface of active ingredient. The coating body is cellulose, polyester, polylactic acid, chitosan, polyamide or hydrophilic aerogel. The active ingredient is disodium hydrogen phosphate dodecahydrate, sodium pyrophosphate decahydrate, decahydrate sodium carbonate, sodium metasilicate nonahydrate or calcium chloride hexahydrate. The content mass ratio of coating body and active ingredient is 1:8-30. The third nucleating agent is non-metal nitride, metal oxide or non-metal carbide. USE - The inorganic hydrous salt phase-change material composition is used for preparing inorganic hydrous salt phase change material in electric appliance and kitchen appliance (all claimed). ADVANTAGE - The material inhibits phase change of phase-change material to form phase-change material with excellent performance, high heat conductivity coefficient and low corrosion. DETAILED DESCRIPTION - An inorganic hydrous salt phase-change material composition comprises 80-96 wt.% inorganic hydrated salt, 2-15 wt.% nucleating agent combination, 0.2-5 wt.% thickener and 0.2-3 wt.% corrosion inhibitor that are mixed and stored or independently stored. The nucleating agent combination is first nucleating agent, second nucleating agent and third nucleating agent with weight ratio of 1:0.1-1:0.1-1. The first nucleating agent is sodium salt. The second nucleating agent contains active ingredient and coating body covered on surface of active ingredient. The coating body is cellulose, polyester, polylactic acid, chitosan, polyamide or hydrophilic aerogel. The active ingredient is disodium hydrogen phosphate dodecahydrate, sodium pyrophosphate decahydrate, decahydrate sodium carbonate, sodium metasilicate nonahydrate or calcium chloride hexahydrate. The content mass ratio of coating body and active ingredient is 1:8-30. The third nucleating agent is non-metal nitride, metal oxide or non-metal carbide. An INDEPENDENT CLAIM is also included for a method for preparing inorganic hydrous salt phase-change material comprising mixing each component in composition.