Electrodeposited silica film interlayer for active corrosion protection
Electrodeposited silica film interlayer for active corrosion protection
复制标题
电沉积二氧化硅薄膜中间层可提供主动腐蚀保护
DOI：
10.1016/j.corsci.2017.01.017
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发表时间：
2017-05-15
影响因子：
8.3
通讯作者：
Hu, Ji-Ming
中科院分区：
文献类型：
--
作者：
Liu, Yan-Hua;Xu, Jun-Bo;Hu, Ji-Ming
在目前的工作中，提出了一种实用的油漆系统，具有很好的主动保护性能，使用电沉积二氧化硅（e-SiO2）作为纳米容器的抑制剂的中间层。利用电辅助技术在低碳钢基体上制备了10 μ m厚、多孔性好、附着力好的溶胶-凝胶二氧化硅薄膜。这种膜能够嵌入所需量的腐蚀抑制剂（聚乙烯吡咯烷酮和葡萄糖酸锌），在其上覆盖环氧涂层。划痕涂层的加速腐蚀试验和完整样品的原位电化学测量均显示新型涂层系统的耐腐蚀性显着提高。(C)2017爱思唯尔有限公司版权所有
In the present work, a pragmatic painting system with promising active protection property is proposed using electrodeposited silica (e-SiO2) interlayer as the nanocontainer of inhibitors. A 10 mu m thick, highly porous and well adherent sol-gel silica film was prepared at mild steel substrate under the aid of electro-assist technique. Such film was capable of embedding desired amount of corrosion inhibitors (polyvinylpyrrolidone and zinc gluconate), upon which the epoxy coating was covered. Both the accelerated corrosion tests on the scratched coating and the in-situ electrochemical measurements of intact sample revealed the significantly improved corrosion resistance of the novel coating system. (C) 2017 Elsevier Ltd. All rights reserved.