Microencapsulation of quinoline as a corrosion inhibitor in polyurea microcapsules for application in anticorrosive PU coatings
Microencapsulation of quinoline as a corrosion inhibitor in polyurea microcapsules for application in anticorrosive PU coatings
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DOI：
10.1016/j.porgcoat.2015.01.021
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发表时间：
2015-06-01
影响因子：
6.6
通讯作者：
Hundiwale, Dilip G.
中科院分区：
文献类型：
--
作者：
Gite, Vikas V.;Tatiya, Pyus D.;Hundiwale, Dilip G.
使用含有缓蚀剂的储层作为腐蚀保护的活性物质是科学文献中非常感兴趣的问题。本研究的目的是将喹啉，一种缓蚀剂，封装到一个微型水库，以克服所造成的缺点，其直接添加到涂层。采用界面聚合法在室温下合成了不同芯层溶剂的喹啉微胶囊。对微胶囊的形貌、壁结构、粒径和热性能进行了研究。通过干燥失重法和紫外分光光度法对芯材进行了释放度研究。将所制备的喹啉微胶囊与聚氨酯（PU）涂料复合，研究其对基材腐蚀的影响。通过将PU涂层的低碳钢试样浸泡在5wt%HCl溶液中，通过目视观察和重量损失测量来测试负载有不同重量%的含喹啉的微胶囊的涂层的防腐性能。(C)2015 Elsevier B.V.版权所有。
The use of reservoirs containing corrosion inhibitors as active substances for corrosion protection is an issue of great interest in the scientific literature. The aim of the present study is to encapsulate quinoline, a corrosion inhibitor, into a micro-reservoir to overcome disadvantages caused by its direct addition into a coating layer. Quinoline incorporated microcapsules with different core solvents were synthesized at room temperature by an interfacial polymerization method. The morphologies, wall structures, particle size and thermal properties of the synthesized microcapsules were investigated. The release study of core material was carried out by loss on drying and UV spectrophotometric methods. The prepared quinoline based microcapsules were incorporated in polyurethane (PU) coatings to study their effect on corrosion of substrate. The anticorrosive performance of coatings loaded with different weight % of microcapsules containing quinoline was tested by immersion of the PU coated mild steel specimens in 5 wt% HCl solution by visual observation and weight loss measurements. (C) 2015 Elsevier B.V. All rights reserved.