IOCAS-IR  > 海洋环境腐蚀与生物污损重点实验室
Eco-Friendly Anticorrosion Superhydrophobic Al2O3@PDMS Coating With Salt Deliquescence Self-Coalescence Behaviors Under High Atmospheric Humidity
Zhang, Binbin1,2,3; Yan, Jiayang1; Xu, Weichen1; Yu, Teng1; Chen, Zhuoyuan4; Duan, Jizhou1,2,3
2022-01-26
Source PublicationFRONTIERS IN MATERIALS
ISSN2296-8016
Volume9Pages:10
Corresponding AuthorZhang, Binbin(zhangbinbin11@mails.ucas.ac.cn)
AbstractBio-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.
Keywordanticorrosion superhydrophobic fluorine-free salt deliquescence atmospheric corrosion
DOI10.3389/fmats.2022.839948
Indexed BySCI
Language英语
Funding ProjectProject 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000752926900001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/177801
Collection海洋环境腐蚀与生物污损重点实验室
Corresponding AuthorZhang, Binbin
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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