Design alternate epoxy-reduced graphene oxide/epoxy-zinc multilayer coatings for achieving long-term corrosion resistance for Cu

doi:10.1016/j.matdes.2019.108299

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	Design alternate epoxy-reduced graphene oxide/epoxy-zinc multilayer coatings for achieving long-term corrosion resistance for Cu
	Ge, Tianhao; Zhao, Wenjie; Wu, Xuedong; Wu, Yangmin; Shen, Lu; Ci, Xiaojing; He, Yanlin
刊名	MATERIALS & DESIGN
	2020
卷号	186
关键词	ANTICORROSION PERFORMANCE CATHODIC PROTECTION OXIDE MECHANISM BEHAVIOR ALLOY FILMS DURABILITY INHIBITION STEEL
DOI	10.1016/j.matdes.2019.108299
英文摘要	To make good use of the barrier effect of graphene nanosheets and to reduce the uneven dispersion of zinc particles caused by its sedimentation, coating with alternate structure containing rGO was developed to provide Cu a long-term corrosion protection. Ionic liquid was used to obtain a better dispersion of rGO in solvent, which was proved by TEM, SPM images and sedimentation experiment. The enhanced long-term anti-corrosion protection of alternate coating was revealed by electrochemical tests. OCP and EIS results showed enhanced barrier performance of epoxy-G compared with epoxy and improved sacrificial anode protection of epoxy-Zn-G compared with epoxy-Zn. Tidal range-corrosion simulation test was also performed to show that the alternate coating can stick on copper substrate without peeling off even in harsh corrosive environment for 432 h. Furthermore, EIS, XRD, and XPS spectra together proved that the excellent anti-corrosion property of alternate coating was originated from the combination of sacrificial anode protection provided by zinc-rich-epoxy layer with barrier protection provided by rGO-doping-epoxy layer. This combination makes it reality to protect copper substrate from corrosion for longer time immersion in 3.5 wt% NaCl solution compared with epoxy-Zn-G. (c) 2019 The Authors. Published by Elsevier Ltd.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20185]
专题	2020专题
作者单位	Zhao, WJ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Ge, Tianhao,Zhao, Wenjie,Wu, Xuedong,et al. Design alternate epoxy-reduced graphene oxide/epoxy-zinc multilayer coatings for achieving long-term corrosion resistance for Cu[J]. MATERIALS & DESIGN,2020,186.
APA	Ge, Tianhao.,Zhao, Wenjie.,Wu, Xuedong.,Wu, Yangmin.,Shen, Lu.,...&He, Yanlin.(2020).Design alternate epoxy-reduced graphene oxide/epoxy-zinc multilayer coatings for achieving long-term corrosion resistance for Cu.MATERIALS & DESIGN,186.
MLA	Ge, Tianhao,et al."Design alternate epoxy-reduced graphene oxide/epoxy-zinc multilayer coatings for achieving long-term corrosion resistance for Cu".MATERIALS & DESIGN 186(2020).