Scholarlink

Inorganic hydrated salt phase change materialsPhase change materials hold broad application prospects in practical production and daily life due to their outstanding thermal storage performance and low cost. This study focuses on the CH₃COONa·3H₂O-Na₂SiO₃·5H₂O inorganic hydrated salt composite phase change materialPhase change materials, utilizing SrCO3 as a nucleating agentNucleating agent to prepare a novel composite phase change materialPhase change materials. The effect of SrCO3 addition on the thermal properties of the CH₃COONa·3H₂O-Na₂SiO₃·5H₂O inorganic hydrated salt composite PCM was investigated. Experimental measurements of supercooling degreeSupercooling degree, phase transition temperature, and phase transition enthalpy were conducted. Results indicate that adding SrCO3 consistently reduces the supercooling degreeSupercooling degree of the composite PCM. Among the tested systems, the optimal performance was achieved when 2% SrCO3 was added to a 6:4 mass ratio mixture of CH₃COONa·3H₂O and Na2SiO3·5H₂O: the material exhibited a supercooling degreeSupercooling degree of 4.9 °C, a phase transition temperature of 53.1 °C, and a latent heat of fusion of 208.69 J/g. This study provides technical support for preparing inorganic hydrated salt composite phase change materialsPhase change materials with lower supercooling and superior comprehensive performance.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental Study on the Effect of Strontium Carbonate on the Properties of Sodium Acetate Trihydrate-Sodium Metasilicate Pentahydrate Phase Change Materials

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Ang Li,
  • Xiaoping Liang,
  • Bingxin Wang,
  • Yu Wang

摘要

Inorganic hydrated salt phase change materialsPhase change materials hold broad application prospects in practical production and daily life due to their outstanding thermal storage performance and low cost. This study focuses on the CH₃COONa·3H₂O-Na₂SiO₃·5H₂O inorganic hydrated salt composite phase change materialPhase change materials, utilizing SrCO3 as a nucleating agentNucleating agent to prepare a novel composite phase change materialPhase change materials. The effect of SrCO3 addition on the thermal properties of the CH₃COONa·3H₂O-Na₂SiO₃·5H₂O inorganic hydrated salt composite PCM was investigated. Experimental measurements of supercooling degreeSupercooling degree, phase transition temperature, and phase transition enthalpy were conducted. Results indicate that adding SrCO3 consistently reduces the supercooling degreeSupercooling degree of the composite PCM. Among the tested systems, the optimal performance was achieved when 2% SrCO3 was added to a 6:4 mass ratio mixture of CH₃COONa·3H₂O and Na2SiO3·5H₂O: the material exhibited a supercooling degreeSupercooling degree of 4.9 °C, a phase transition temperature of 53.1 °C, and a latent heat of fusion of 208.69 J/g. This study provides technical support for preparing inorganic hydrated salt composite phase change materialsPhase change materials with lower supercooling and superior comprehensive performance.