摘要
相变材料微胶囊化较好地解决了传统单一相变材料的缺陷,但微胶囊相变材料具有较低的导热系数,导致储能系统在吸热或者放热过程中的有效热率极低,热量无法快速有效地进行储存和释放,较大地限制了相变微胶囊的应用。因此,提高相变微胶囊的导热系数成为了近年来的研究重点。主要在壁材中添加纳米材料、芯材中添加纳米材料、采用无机材料封装以及微胶囊表面金属化修饰等几个方面总结了在改善微胶囊相变材料导热性能方面的国内外研究状况。
With the development of microencapsulation of phase change material,the defect of the traditional and simple phase change material was well solved. However,the thermal conductivity of phase change microcapsule is low, which leads to low effective rate of heat for thermal energy storage system during storing and releasing thermal energy, the heat can not be stored and released quickly and efficiently. So its application is limited. Therefore, improving thermal conductivity of phase change microcapsule becomes an important topic in thermal storage research field. The research situations of improving thermal conductivity of phase change microcapsule at home and abroad are summarized from several aspects,such as adding the nano material to the shell,adding the nano material to the core, encapsulation by inorganic material and metallized modification on the surface of microcapsule.
作者
朱阳倩
汪海平
ZHU Yangqian;WANG Haiping(Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering,Jianghan University, Wuhan, Hubei 430056, Chin)
出处
《塑料》
CSCD
北大核心
2017年第6期80-83,87,共5页
Plastics
基金
光电化学材料与器件教育部重点实验室开放课题(JDGD-201604)
关键词
相变材料
微胶囊
导热性能
纳米材料
综述
phase change material
microcapsule
thermal conductivity
nano material
review
