The low-temperature reversible thermochromic microcapsules was prepared by interfacial polymerization, which an aqueous phase containing CoCl2 was used as the internal water phase (W1), cyclohexane was used as the oil phase (O), polyvinyl alcohol was used as the external water phase (W2) to form the uniform W1/O/W2 multiple emulsion. The structures of microcapsules were investigated using infrared spectrum (IR), electron microscopy (SEM) and polarization microscope. The properties of microcapsules, such as thermochromism and solvent resistance were also investigated. The results presented that the particle size of capsules was uniform, their walls were transparency, and the microcapsules were provided with excellent sensitivity to heat, reversibility and solvent resistance.
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机译：通过界面聚合制备低温可逆热致铬微胶囊，该界面聚合制备，该含水相的COCl2用作内部水相（W1），使用环己烷作为油相（O），使用聚乙烯醇作为外部水相（W2）形成均匀的W1 / O / W2多重乳液。使用红外光谱（IR），电子显微镜（SEM）和偏振显微镜来研究微胶囊的结构。还研究了微胶囊的性质，例如热切割和耐溶剂性。结果表明，胶囊的粒径是均匀的，它们的壁是透明性，并且将微胶囊提供优异的热，可逆性和耐溶剂性敏感性。
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