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微胶囊相变材料(Microencapsulated Phase Change Material,MEPCM)是应用微胶囊技术在固液相变材料表面包覆一层性能稳定的高分子膜,而构成的具有核壳结构的复合材料。系统地讲述了相变材料的分类,微胶囊相变材料的工作原理,并重点介绍了几种微胶囊的制备方法,包括界面聚合法、原位聚合法、复凝聚法、溶剂挥发法、凝聚相分离法等,并提出了微胶囊技术今后的发展方向。
Microencapsulated phase change material (Microencapsulated Phase Change Material, MEPCM) is the application of microcapsule technology in the solid-liquid phase change material coated with a layer of stable polymer membrane, and the composition of the core-shell structure of the composite material. The classification of phase change materials and the working principle of microcapsule phase change materials are systematically introduced. The preparation methods of several kinds of microcapsules are introduced emphatically, including interfacial polymerization, in situ polymerization, complex condensation, solvent evaporation, condensation Phase separation method, and put forward the future development direction of the microcapsule technology.