Preparation and Characterization of

Preparation and Characterization of Microencapsulated Hexadecane Used for Thermal Energy Storage

Polyurea microcapsules about 2.5 μm in diameter containing phase change material for thermal energy storage application were synthesized and characterized by interfacial polycondensation method with toluene-2,4-diisocyanate and ethylenediamine as monomers in an emulsion system. Hexadecane was used as a phase change material and OP, which is nonionic surfactant, and used as an emulsifier. The chemical structure and thermal behavior of the microcapsules were investigated by FTIR and thermal analysis respectively. The results show encapsulated hexadecane has a good potential as a solar energy storage material.

作 者： Guang Long ZOU Zhi Cheng TAN Xiao Zheng LAN Li Xian SUN Tao ZHANG   作者单位： Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023  刊 名： 中国化学快报(英文版)  ISTIC SCI 英文刊名： CHINESE CHEMICAL LETTERS  年，卷(期)： 2004 15(6)  分类号：   关键词： Phase change material   microcapsule   interfacial polycondensation   energy storage  

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