Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity

doi:10.3389/fmats.2022.839948

	Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity
	Zhang, Binbin1,2,3 ; Yan, Jiayang 1; Xu, Weichen 1; Yu, Teng 1; Chen, Zhuoyuan 4; Duan, Jizhou1,2,3
	2022-01-26
发表期刊	FRONTIERS IN MATERIALS
ISSN	2296-8016
卷号	9 页码:10
通讯作者	Zhang, Binbin([email protected])
摘要	Bio-inspired superhydrophobic coatings have been demonstrated to be promising anticorrosion materials. However, developing robust superhydrophobic coatings through simple one-step fluorine-free procedures to meet various functional requirements remains a major challenge. In this study, we fabricated an eco-friendly superhydrophobic Al2O3@PDMS composite coating with mechanical robustness based on Al2O3 NPs, PDMS, and spray coating technique. To characterize surface morphologies, chemical compositions, surface wettability, and anticorrosion properties, FE-SEM, EDS, XPS, contact angle meter, electrochemical impendence spectroscopy, and potentiodynamic polarization techniques were employed. The electrochemical results show that \|Z\|(0.01 Hz) and R-ct values of the superhydrophobic Al2O3@PDMS coating were four orders of magnitude higher than bare Q235 carbon steel, indicating a significant improvement in corrosion resistance. Furthermore, the deliquescence behaviors of NaCl salt particles and the instantaneous self-coalescence phenomenon were recorded under high atmospheric humidity to suggest that a superhydrophobic surface with Cassie-Baxter interfacial contacts can serve as an efficient barrier to suppress the formation of saline liquid thin films and protect the underlying substrate from corrosion. This robust superhydrophobic Al2O3@PDMS coating is expected to be easily applied to a variety of substrates and to find potential applications for liquid repellency, self-cleaning, corrosion resistance, and other properties.
关键词	anticorrosion superhydrophobic fluorine-free salt deliquescence atmospheric corrosion
DOI	10.3389/fmats.2022.839948
收录类别	SCI
语种	英语
资助项目	Project of Innovation Development Joint Funds by Shandong Provincial Natural Science Foundation[ZR2021LFG004]; Youth Innovation Promotion Association Chinese Academy of Sciences[2021207]; 2020 Open Projects of Key Laboratory of Advanced Technologies of Materials, Ministry of Education China, Southwest Jiaotong University[KLATM202006]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000752926900001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/177801
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhang, Binbin
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Foshan Univ, Sch Mat Sci & Hydrogen Energy, Foshan, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhang, Binbin,Yan, Jiayang,Xu, Weichen,et al. Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity[J]. FRONTIERS IN MATERIALS,2022,9:10.
APA	Zhang, Binbin,Yan, Jiayang,Xu, Weichen,Yu, Teng,Chen, Zhuoyuan,&Duan, Jizhou.(2022).Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity.FRONTIERS IN MATERIALS,9,10.
MLA	Zhang, Binbin,et al."Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity".FRONTIERS IN MATERIALS 9(2022):10.

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