无机定形相变材料因具有较高的潜热及成本低、不可燃的优点,在建筑节能、太阳能储热、工业余热回收等领域有较大的应用潜力。目前,固-液型无机定形相变材料应用研究较多,分析了无机定形相变材料的相变潜热、过冷度、热导率等热性能指标,通过取相变材料蓄热能力最佳时的添加量来解决支撑材料添加量选取的问题;采用改性多孔碳基来解决液相金属腐蚀性大、陶瓷封装费用高的问题。并提出了选取导热良好的支撑材料来提高无机-有机共晶类相变材料导热率,综合分析表明制备无机-有机共晶相变材料是改善无机类相变材料相分离和过冷的又一种有效方法,具有良好的发展前景。
Inorganic forming composite phase change material (FCPCM) have the advantages of high latent heat,low cost and non-combustible,so they have great application potential in building energy saving,solar energy storage,industrial waste heat recovery and other fields.At present,there are many researches on the application of solid-liquid inorganic FCPCM.The thermal performance indexes of the materials,such as latent heat of phase change,undercooling degree and thermal conductivity,were analyzed.The modified porous carbon base was used to solve the problems of high corrosion of liquid metal and high cost of ceramic packaging.It was also proposed to select support materials with good thermal conductivity to improve the thermal conductivity of inorganic-organic eutectic PCM.Comprehensive analysis shown that the preparation of inorganic-organic eutectic PCM was another effective method to improve the phase separation and undercooling of inorganic PCM,and had a good development prospect.
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基金资助
江西省教育厅基金项目(GJJ190447);国家自然科学基金(51966004);江西省自然科学基金项目(20212BAB204029和20192BAB216030)
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