Self-assembled graphene oxide microcapsules in Pickering emulsions for self-healing waterborne polyurethane coatings
Self-assembled graphene oxide microcapsules in Pickering emulsions for self-healing waterborne polyurethane coatings
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Pickering乳液中的自组装氧化石墨烯微胶囊用于自修复水性聚氨酯涂料
DOI：
10.1016/j.compscitech.2017.07.031
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发表时间：
2017-10-20
影响因子：
9.1
通讯作者：
Yang, Junhe
中科院分区：
文献类型：
--
作者：
Li, Jing;Feng, Qingkang;Yang, Junhe
采用自组装技术制备了以亚麻籽油为修复剂的氧化石墨烯微胶囊。在Pickering乳液中，氧化石墨烯（GO）片层在液-液界面上通过液晶组装形成纳米厚的GOMCs壳层。将GOMC嵌入水性聚氨酯基体中，在热镀锌钢板表面制备自修复复合涂层。在复合涂层中包含GOMC不仅赋予涂层自修复性能，而且由于GO壳的物理屏障而改善了它们的防腐蚀性能，从而导致对天气/海洋环境和表面磨损的更好的存活。(C)2017爱思唯尔有限公司版权所有
A self-assembly process was employed to prepare the graphene oxide microcapsules (GOMCs), containing linseed oil as the healing agent. The nanometer-thick shells of GOMCs were built by the liquid crystalline assembling of graphene oxide (GO) sheets, forming at liquid liquid interface in Pickering emulsions. The GOMCs were embedded into waterborne polyurethane matrix, enabling the facile fabrication of self-healing composite coatings on hot-dip galvanized steel surfaces. The inclusion of GOMCs in the composite coatings not only imparted self-healing properties to the coatings, but also improved their anticorrosion properties because of the physical barrier of the GO shell, leading to much better survival to the weather/marine environment and surface wear. (C) 2017 Elsevier Ltd. All rights reserved.