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聚氨酯微膠囊應用研究進展

Research Progress in the Application of Polyurethane Microcapsules

  • 摘要: 在高分子結構的主鏈上含有多個氨基甲酸酯基團(—NHCOO—)的聚合物通稱為聚氨基甲酸酯,簡稱聚氨酯(PU)🧖🏿‍♀️,其是全球發展最快的高分子合成材料之一。由於具有軟硬度可調節範圍寬、柔韌性好🐁、附著力強🔒、耐低溫等優點🧑🏼‍🎓,PU逐漸被人們所認識並廣泛應用於國民經濟的眾多領域。PU微膠囊通常由界面聚合法製備,以PU作壁材顯示出良好的耐磨性🤹🏻‍♀️👬、高機械強度等優越性能💨👨🏽‍🔬。綜述了PU微膠囊的常用單體和不同乳化劑的應用效果,重點介紹了單殼和多殼型PU微膠囊的特點及其在相變材料、塗料、醫藥、香料香精等方面的應用,並對其發展前景進行了展望⚠️。

     

    Abstract: A polymer containing a large number of urethane groups (—NHCOO—) in the main chain of the polymer structure is generally referred to as a polyurethane (PU). It is one of the fastest growing polymer synthetic materials in the world. It is gradually recognized by its wide adjustable range of softness and hardness, good flexibility, strong adhesion and low temperature resistance. The superiority of polyurethane has been widely used in many fields of the national economy. Polyurethane microcapsules are usually prepared by interfacial polymerization, and polyurethane as a wall material exhibits superior wear resistance and high mechanical strength. In this paper, the application effects of common monomers and different emulsifiers of polyurethane microcapsules are introduced, and the characteristics of single-shell and multi-shell polyurethane microcapsules, as well as their application properties in phase change materials, coatings, drug and fragrance carriers are reviewed. Finally the prospects for its development are prospected.

     

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