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

doi:10.3389/fmats.2022.839948

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	Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity
	Zhang, Binbin 2,3,4; Yan, Jiayang 4; Xu, Weichen 4; Yu, Teng 4; Chen, Zhuoyuan 1; Duan, Jizhou 2,3,4
刊名	FRONTIERS IN MATERIALS
	2022-01-26
卷号	9 页码:10
关键词	anticorrosion superhydrophobic fluorine-free salt deliquescence atmospheric corrosion
ISSN号	2296-8016
DOI	10.3389/fmats.2022.839948
通讯作者	Zhang, Binbin(zhangbinbin11@mails.ucas.ac.cn)
英文摘要	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.
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
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000752926900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/177800]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhang, Binbin
作者单位	1.Foshan Univ, Sch Mat Sci & Hydrogen Energy, Foshan, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao, Peoples R China
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.