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首页> 外文期刊>Applied Surface Science >Active corrosion protection performance of an epoxy coating applied on the mild steel modified with an eco-friendly sol-gel film impregnated with green corrosion inhibitor loaded nanocontainers
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Active corrosion protection performance of an epoxy coating applied on the mild steel modified with an eco-friendly sol-gel film impregnated with green corrosion inhibitor loaded nanocontainers

机译：涂在低碳钢上的环氧树脂涂层的主动腐蚀防护性能，该低碳钢用环保的溶胶-凝胶膜改性，并浸有绿色缓蚀剂纳米容器

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摘要

In this study the corrosion resistance, active protection, and cathodic disbonding performance of an epoxy coating were improved through surface modification of steel by a hybrid sol-gel system filled with green corrosion inhibitors loaded nanocontainer as intermediate layer on mild steel substrate. The green inhibitor loaded nanocontainers (GIN) were used to induce active inhibition performance in the protective coating system. The corrosion protection performance of the coated panels was investigated by electrochemical impedance spectroscopy (EIS), salt spray, and cathodic disbonding tests. It was observed that the corrosion inhibition performance of the coated mild steel panels was significantly improved by utilization of active multilayer coating system. The inhibitor release from nanocontainers at the epoxysilane film/steel interface resulted in the anodic and cathodic reactions restriction, leading to the lower coating delamination from the substrate and corrosion products progress. Also, the active inhibition performance of the coating system was approved by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), and energy dispersive X-ray (EDS) analysis on the panels with artificial defects. The inhibitive agents were released to the scratch region and blocked the active sites on the metal surface. (C) 2018 Elsevier B.V. All rights reserved.
机译：在这项研究中，通过在混合软溶胶体系中对钢进行表面改性，改善了环氧涂层的耐蚀性，活性保护和阴极剥离性能，该体系通过在绿色软钢基材上填充绿色负载缓蚀剂的纳米容器作为中间层填充。负载绿色抑制剂的纳米容器（GIN）用于在保护涂层系统中诱导主动抑制性能。通过电化学阻抗谱（EIS），盐雾和阴极剥离试验研究了涂层板的防腐性能。观察到，通过使用活性多层涂层体系，涂覆的低碳钢板的腐蚀抑制性能显着提高。缓蚀剂在环氧硅烷膜/钢界面处从纳米容器释放，导致阳极和阴极反应受到限制，从而导致较低的涂层从基材上的剥离和腐蚀产物的发展。此外，涂层系统的主动抑制性能已通过电化学阻抗谱（EIS），扫描电子显微镜（SEM）和能量色散X射线（EDS）分析在具有人造缺陷的面板上得到了认可。抑制剂被释放到划痕区域并阻断了金属表面上的活性位。 （C）2018 Elsevier B.V.保留所有权利。

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