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| Study on Evolution of Coating State and Role of Graphene in Graphene-Modified Low-Zinc Waterborne Epoxy Anticorrosion Coating by Electrochemical Impedance Spectroscopy | |
| Ding, Rui1,2; Wang, Xiao1; Jiang, Jianming1; Gui, Taijiang1; Li, Weihua2 | |
| 2017-07-01 | |
| 发表期刊 | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| 卷号 | 26期号:7页码:3319-3335 |
| 文章类型 | Article |
| 摘要 | In this paper, corrosion potential and impedance response of the graphene-modified low-zinc waterborne epoxy anticorrosion coating with different compositions were measured experimentally. Microstructure impedance analysis approach was proposed, which was applied to analyze in detail the system impedance and to clarify the variation of coating state as well as the role of graphene in the coating. Results showed that the variation course of coating state was divided into four stages: activation stage; cathodic protection stage; shielding protection stage; and failure stage. Graphene formed numerous isolation layers in the coating to hinder the diffusion of aggressive particles like water and oxygen as well as corrosion products, which played a certain shielding protective role. Moreover, graphene was a good electron conductor, which enabled the outer layer zinc to continue to constitute a galvanic couple with the iron substrate after cathodic protection stage, thereby prolonging the protective effect of the coating to some extent. |
| 关键词 | Anticorrosion Mechanism Coating Electrochemical Impedance Graphene Zinc |
| DOI | 10.1007/s11665-017-2790-8 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000405659200031 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/137069 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 作者单位 | 1.Marine Chem Res Inst, State Key Lab Marine Coatings, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Rui,Wang, Xiao,Jiang, Jianming,et al. Study on Evolution of Coating State and Role of Graphene in Graphene-Modified Low-Zinc Waterborne Epoxy Anticorrosion Coating by Electrochemical Impedance Spectroscopy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2017,26(7):3319-3335. |
| APA | Ding, Rui,Wang, Xiao,Jiang, Jianming,Gui, Taijiang,&Li, Weihua.(2017).Study on Evolution of Coating State and Role of Graphene in Graphene-Modified Low-Zinc Waterborne Epoxy Anticorrosion Coating by Electrochemical Impedance Spectroscopy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,26(7),3319-3335. |
| MLA | Ding, Rui,et al."Study on Evolution of Coating State and Role of Graphene in Graphene-Modified Low-Zinc Waterborne Epoxy Anticorrosion Coating by Electrochemical Impedance Spectroscopy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 26.7(2017):3319-3335. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Study on Evolution o（4502KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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