A sandwich-like structure hybrid coating of cold galvanizing coating/polydopamine on hot-dip galvanized steel with enhanced adhesion and corrosion resistance
文献类型：期刊论文
| 作者 | Li, JiWen1,3; Gao, NingJie1,3; Zhang, WanYu1,3; Xu, Long2; Nwokolo, Kenneth Izuchukwu1,3; Wu, Hao1,3; Liu, FuChun1,3,4; Han, En-Hou1,3,4 |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2023-05-12 |
| 页码 | 15 |
| 关键词 | dopamine zinc-rich coatings hot-dip galvanized steel corrosion protection chelate compound |
| ISSN号 | 1674-7321 |
| DOI | 10.1007/s11431-022-2326-1 |
| 通讯作者 | Liu, FuChun(fcliu@imr.ac.cn) ; Han, En-Hou(ehhan@imr.ac.cn) |
| 英文摘要 | This study aims to enhance the adhesion strength and anti-corrosion performance of the cold galvanizing coating (CGC) applied on the hot-dip galvanized steel (HDG). Polydopamine (PDA) is deposited on the HDG surface with different time ranges and as an interlayer between CGC and HDG through covalent immobilization. The surface morphology and the covalent interaction between PDA/HDG are exhibited by scanning electron microscope (SEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). The pull-off adhesion tests before and after neutral slat spry tests show an enhanced dry adhesion strength and less adhesion loss of the hybrid CGC/PDA coated HDG compared with the direct CGC coated HDG. In addition, open circuit potential (OCP) reveals that the corrosion protection performance of the hybrid CGC/PDA coated HDG increases by 200% (up to 201 d) and the corrosion density i(corr) attaining about 4.45x10(-7) A/cm(2). Electrochemical impedance spectroscopy (EIS) measurements and X-ray diffraction (XRD) analysis confirm that the precipitate of the stable chelation formed by PDA and Zn2+ between CGC and HDG substrate can also improve the corrosion protection performance. Such a strategy of strengthening adhesion and forming the chelate compound at the HDG surface promises a new route to corrosion protection of CGC on HDG. |
| 资助项目 | Ling Chuang Research Project of China National Nuclear Corporation[E041F212Z1] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000990947900001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Ling Chuang Research Project of China National Nuclear Corporation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177632]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, FuChun; Han, En-Hou |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Jihua Lab, Foshan 528000, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 4.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, JiWen,Gao, NingJie,Zhang, WanYu,et al. A sandwich-like structure hybrid coating of cold galvanizing coating/polydopamine on hot-dip galvanized steel with enhanced adhesion and corrosion resistance[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2023:15. |
| APA | Li, JiWen.,Gao, NingJie.,Zhang, WanYu.,Xu, Long.,Nwokolo, Kenneth Izuchukwu.,...&Han, En-Hou.(2023).A sandwich-like structure hybrid coating of cold galvanizing coating/polydopamine on hot-dip galvanized steel with enhanced adhesion and corrosion resistance.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,15. |
| MLA | Li, JiWen,et al."A sandwich-like structure hybrid coating of cold galvanizing coating/polydopamine on hot-dip galvanized steel with enhanced adhesion and corrosion resistance".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2023):15. |
入库方式： OAI收割
来源：金属研究所
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