Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state

doi:10.1007/s11998-018-00182-2

IMR OpenIR

	Anticorrosion and barrier properties appraisal of poly(dimethylsiloxane)-ZnO nanocoating transition from superhydrophobic to hydrophobic state
	Arukalam, Innocent O.1,2; Li, Ying 1
通讯作者	Li, Ying(liying@imr.ac.cn)
	2019-07-01
发表期刊	JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
ISSN	1547-0091
卷号	16 期号:4 页码:1077-1088
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.
关键词	Corrosion resistance Electrochemical impedance spectroscopy Poly(dimethylsiloxane) Superhydrophobic Wetting transition
资助者	Chinese Academy of Sciences-President's International Fellowship Initiative for Postdoctoral Research ; National Natural Science Foundation of China
DOI	10.1007/s11998-018-00182-2
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Applied ; Materials Science, Coatings & Films
WOS记录号	WOS:000482088600015
出版者	SPRINGER
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135075
专题	中国科学院金属研究所
通讯作者	Li, Ying
作者单位	1.Chinese Acad Sci, Inst Met Res, Corros & Protect Div, Shenyang Natl Lab Mat Sci, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China 2.Fed Univ Technol Owerri, Dept Polymer & Text Engn, PMB 1526, Owerri, Nigeria
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.