Robust, scalable and fluorine-free superhydrophobic anti-corrosion coating with shielding functions in marine submerged and atmospheric zones
Zhang, Binbin1,2,3; Yan, Jiayang1,2; Xu, Weichen1,2; Zhang, Yimeng1; Duan, Jizhou1; Hou, Baorong1
2022-11-01
发表期刊MATERIALS & DESIGN
ISSN0264-1275
卷号223页码:12
通讯作者Zhang, Binbin(zhangbinbin11@mails.ucas.ac.cn)
摘要Biomimetic superhydrophobicity endows various substrates with amazing multi-functional properties. However, fragile hierarchical structures, fluorine-containing chemicals usage, and strict requirements for substrate scopes remain thorny challenges. Herein, we constructed a mechanical robust superhy-drophobic ZnO@STA@PDMS coating with fluorine-free reagents through wide-applicable and substrate-independent spray-coating method. Field-emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and contact angle meter were used to assess the surface micro-nano structures, chemical compositions, thermal stability and wettability variations. The corrosion resistance of the developed superhydrophobic ZnO@STA@PDMS coating was evaluated by electrochemical impe-dance spectroscopy (EIS) and potentiodynamic polarization measurements. The corrosion current density (Icorr) of the substrate reduces by two orders of magnitude after being spray-coated with superhydropho-bic ZnO@STA@PDMS coating, indicating excellent corrosion resistance in marine submerged zone. In sim-ulated marine atmospheric conditions with high relative humidity, the salt-deliquesce behaviors of single and double NaCl particles on bare and coated Q235 carbon steel surfaces were recorded. In a high humid-ity atmospheric environment, the instantaneous salt-deliquesce self-coalescence phenomena provides a new type of anti-corrosion mechanism. Furthermore, the prepared superhydrophobic coating can withstand more than 30 tape-peeling cycles and 400 cm abrasion distance, demonstrating good mechan-ical stability in prospective real-world applications.(c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词Superhydrophobic Fluorine-free Corrosion Stability Spray-coating
DOI10.1016/j.matdes.2022.111246
收录类别SCI
语种英语
资助项目Shan-dong Provincial Natural Science Foundation ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; [ZR2022YQ35] ; [ZR2021LFG004] ; [2021207]
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
WOS记录号WOS:000892631600007
出版者ELSEVIER SCI LTD
引用统计
被引频次:20[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/337002/181038
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 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, 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. Robust, scalable and fluorine-free superhydrophobic anti-corrosion coating with shielding functions in marine submerged and atmospheric zones[J]. MATERIALS & DESIGN,2022,223:12.
APA Zhang, Binbin,Yan, Jiayang,Xu, Weichen,Zhang, Yimeng,Duan, Jizhou,&Hou, Baorong.(2022).Robust, scalable and fluorine-free superhydrophobic anti-corrosion coating with shielding functions in marine submerged and atmospheric zones.MATERIALS & DESIGN,223,12.
MLA Zhang, Binbin,et al."Robust, scalable and fluorine-free superhydrophobic anti-corrosion coating with shielding functions in marine submerged and atmospheric zones".MATERIALS & DESIGN 223(2022):12.
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