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相变储能材料的制备及其在石膏基体中的应用研究

作者：赵亮1，方向晨1，黄新露1，李帆2，陈红霞2，武发德2

关键字：相变,储能,材料,的,制备,及其,在,石膏,基体,

　
（1.中国石化抚顺石油化工研究院，辽宁 抚顺 113001；2.北新集团建材股份有限公司，北京 100096)
　　  摘要：制备有机-无机复合壁材微胶囊相变储能材料，并与石膏掺混制备相变储能石膏复合材料。研究了不同壁材结构微胶囊和相变储能石膏复合材料的理化性质。结果表明，复合壁材微胶囊相变储能材料中，微胶囊壁材以无机硅为主，兼有少量有机硅组分，可有效防止壁材开裂且提高微胶囊包覆率；复合壁材微胶囊相变储能材料的相变温度和潜热分别为24.57 ℃和122.8 J/g，粒径为0.5～1.0 μm；掺加微胶囊后，由于石膏结晶状态改变，石膏基体凝结时间延长且强度降低，当掺量达到10%时，相变储能石膏复合材料的潜热为16.1 J/g，具备一定的蓄热调温能力。
　　  关键词：相变储能材料；微胶囊；石膏；强度
　　  中图分类号：TU55        文献标志码：A        文章编号：1001-702X（2020）03-0135-04
　　 
Preparation of phase change storage materials and application in gypsum matrix
ZHAO Liang1，FANG Xiangchen1，HUANG Xinlu1，LI Fan2，CHEN Hongxia2，WU Fade2
（1.Sinopec Fushun Research Institute of Petroleum and Petrochemicals，Fushun 113001，China，; 
2.Beijing New Building Materials Public Limited Company，Beijing 100096，China)
　　  Abstract：An organic-inorganic composite wall material microencapsulated phase change energy storage material is prepared，mixed with gypsum to prepare a phase change energy storage gypsum composite material. The physical and chemical properties of microcapsules and phase change energy storage gypsum composites with different wall material structures were studied. The results show that among the composite materials，the microencapsulated wall material is mainly composed of inorganic silicon and has a small amount of organic silicon component，which can effectively prevent the wall material from cracking and improve the microcapsule coating ratio. The phase transfer temperature and latent heat of the microencapsulated phase change energy storage material are 24.57 ℃ and 122.8 J/g，respectively. The particle size is about 0.5～1 μm. After incorporation of microcapsules，due to the change of gypsum crystalline state，the setting time of gypsum matrix is prolonged and the mechanical strength decreases. When the microcapsules content reaches 10%，the latent heat of phase change storage gypsum is 16.1 J/g，which means that the composite materials possess the ability of heat storage and temperature regulation.
　   Key words：phase change storage materials，microencapsulated，gypsum，strength