Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state
文献类型：期刊论文
| 作者 | Arukalam, Innocent O.1,2; Li, Ying2 |
| 刊名 | JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 16期号:4页码:1077-1088 |
| 关键词 | Corrosion resistance Electrochemical impedance spectroscopy Poly(dimethylsiloxane) Superhydrophobic Wetting transition |
| ISSN号 | 1547-0091 |
| DOI | 10.1007/s11998-018-00182-2 |
| 通讯作者 | Li, Ying(liying@imr.ac.cn) |
| 英文摘要 | The anticorrosion and barrier properties of poly(dimethylsiloxane) (PDMS)-ZnO nanocoating transition from superhydrophobic to hydrophobic state have been evaluated. The main objective was to appraise the durability performance of anticorrosion and barrier properties of the pristine superhydrophobic coating and its hydrophobic state after long-term exposure to marine water. Thus, water wettability, surface features, and corrosion resistance, as well as barrier performance of the 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane-modified PDMS-ZnO coating were evaluated after 15 cycles (1 h to 60 days) of immersion in 3.5 wt.% NaCl solution. The evaluations were made by use of surface analytical, physicochemical, and electrochemical techniques. The results show that the coating transformed from superhydrophobic state (after 1 h) to hydrophobic state (after 60 days). The transition was due to effect of corrosiveness of the salty water and disappearance of the surface air layer with consequent reduction in the surface roughness and increase in the porosity of the coating. Correspondingly, the value of the impedance modulus decreased from 4.257 x 10(9) ohm cm(2) (after 1 h) to 7.175 x 10(8) ohm cm(2) (after 60 days). The trend of coating film (R-cf) and charge transfer (R-ct) resistances with immersion time was found to be somewhat stable after 40-day immersion time. The observed high values of impedance modulus (|Z|(f=0.01 Hz)), R-cf and R-ct after 60 days of immersion clearly demonstrate that the anticorrosion property and barrier performance of the transformed hydrophobic PDMS-ZnO coating were good. |
| 资助项目 | Chinese Academy of Sciences-President's International Fellowship Initiative for Postdoctoral Research[2015PT005] ; National Natural Science Foundation of China[51650110506] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000482088600015 |
| 出版者 | SPRINGER |
| 资助机构 | Chinese Academy of Sciences-President's International Fellowship Initiative for Postdoctoral Research ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/135074]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Ying |
| 作者单位 | 1.Fed Univ Technol Owerri, Dept Polymer & Text Engn, PMB 1526, Owerri, Nigeria 2.Chinese Acad Sci, Inst Met Res, Corros & Protect Div, Shenyang Natl Lab Mat Sci, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Arukalam, Innocent O.,Li, Ying. Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state[J]. JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH,2019,16(4):1077-1088. |
| APA | Arukalam, Innocent O.,&Li, Ying.(2019).Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state.JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH,16(4),1077-1088. |
| MLA | Arukalam, Innocent O.,et al."Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state".JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH 16.4(2019):1077-1088. |
入库方式： OAI收割
来源：金属研究所
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