Microencapsulation of the triazole derivative for self-healing anticorrosion coatings
作者:Eunjoo Koh、Seung-Yeob Baek、Nam-Kyun Kim、Sangjun Lee、Jihoon Shin、Young-Wun Kim
DOI:10.1039/c4nj00827h
日期:——
microcapsules containing the triazole derivative and the oleate derivative as core materials were successfully prepared via interfacial polymerization in an oil-in-water emulsion of the diol-diisocyanate prepolymer and 1,4-butanediol as a chain extender under agitation or ultrasound sonication. The diameters of the resultant capsules which possess the triazole derivative core agent are 25–276 μm and shell
以三唑衍生物和油酸酯衍生物为核心材料的聚氨酯微胶囊的制备成功。二醇-二异氰酸酯预聚物和1,4-丁二醇作为增链剂的水包油乳液在搅拌或超声处理下的界面聚合。在控制搅拌速度(1000-6000 rpm)下,具有三唑衍生物核心剂的所得胶囊直径为25-276μm,壳厚度为1.9-18.0μm。在不同的反应条件下,微胶囊的典型核心含量和胶囊聚合的收率分别为45-67%和38-75%。壳壁厚度与胶囊直径的比率相对恒定,平均值为0.07。在钢基材上涂上合成的PU胶囊,以用于自修复防腐。