为扩大相变材料的应用范围,定形相变材料由此产生。定形材料凭借其特有的固态支撑材料+相变材料展现出较好的热湿性能,但在调温领域存在着固-固定形相变材料热导率偏低、相变时间较长、制备过程繁琐;固-液定形相变材料热导率偏低、相变温度不适宜;在调温调湿领域存在对复合材料湿性能、热湿综合性能难以判定等问题。通过综合现有文献对定形复合相变调温调湿材料热湿性能及建筑节能进行了分析整合,得出了定形相变调温调湿材料部分不足和优势,认为更扩大定形复合相变调温调湿材料在建筑节能领域的应用。
In order to expand the application range of phase change materials (PCM),the form-forming PCM was produced.However,in the field of temperature regulation,there are some problems such as low thermal conductivity,long phase transition time and complicated preparation process of solid-fixed PCM.The thermal conductivity of solid-liquid forming PCM is low and the phase change temperature is not suitable.There are also problems in the field of temperature and humidity regulation,such as how to judge the wet property and comprehensive heat and humidity property of composite materials.Based on the analysis and integration of the thermal and humidity performance and building energy saving of the form-forming composite temperature and humidity regulating PCM by integrating the existing literature,the deficiencies and advantages of the form-forming composite temperature and humidity regulating PCM were obtained.It was proposed that more form-forming composite temperature and humidity regulating PCM should be applied in the field of building energy saving.
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基金资助
江西省教育厅基金(GJJ190447),国家自然科学基金(51966004)
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