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	2-Mercaptobenzothiazole doped chitosan/11-alkanethiolate acid composite coating: Dual function for copper protection
	Bao, Qi1,2; Zhang, Dun1; Wan, Yi1,2; Zhang, D (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
刊名	APPLIED SURFACE SCIENCE
	2011-10-01
卷号	257期号:24页码:10529-10534
关键词	Copper 2-mercaptobenzothiazole Corrosion Microbiologically Influenced Corrosion
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2011.07.034
文献子类	Article
英文摘要	Chitosan (CS) hydrogel loaded with the well-known corrosion inhibitor 2-mercaptobenzothiazole (MBT) has been introduced into a composite coating to improve copper protection. This composite coating, which has both anticorrosion and antibacterial properties, was fabricated onto the surface of copper by combining a simple self-assembled monolayer technique with a sol-gel method. The anti-corrosion ability of the coating in 3.5 wt.% NaCl solution was investigated by electrochemical methods including potentiodynamic polarization and electrochemical impedance spectroscopy. The protection efficiency of the coating is 97.70%, calculated on the basis of the corrosion current density. The stability and integrity of the composite coating were evaluated by field emission scanning electron microscopy (FESEM) and energy dispersive spectrometry (EDS). The FESEM and EDS results suggest that the composite coating endows the copper substrate with antibacterial properties, as untreated bare copper underwent microbiologically influenced corrosion in the presence of sulphate reducing bacteria (SRB). This antibacterial feature was further confirmed by the SRB culture method. In a 3.5% NaCl solution and highly corrosive SRB culture media, the as-prepared CS based composite coating gave corrosion protection by exhibiting better barrier effects against the attack of aggressive environments. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.; Chitosan (CS) hydrogel loaded with the well-known corrosion inhibitor 2-mercaptobenzothiazole (MBT) has been introduced into a composite coating to improve copper protection. This composite coating, which has both anticorrosion and antibacterial properties, was fabricated onto the surface of copper by combining a simple self-assembled monolayer technique with a sol-gel method. The anti-corrosion ability of the coating in 3.5 wt.% NaCl solution was investigated by electrochemical methods including potentiodynamic polarization and electrochemical impedance spectroscopy. The protection efficiency of the coating is 97.70%, calculated on the basis of the corrosion current density. The stability and integrity of the composite coating were evaluated by field emission scanning electron microscopy (FESEM) and energy dispersive spectrometry (EDS). The FESEM and EDS results suggest that the composite coating endows the copper substrate with antibacterial properties, as untreated bare copper underwent microbiologically influenced corrosion in the presence of sulphate reducing bacteria (SRB). This antibacterial feature was further confirmed by the SRB culture method. In a 3.5% NaCl solution and highly corrosive SRB culture media, the as-prepared CS based composite coating gave corrosion protection by exhibiting better barrier effects against the attack of aggressive environments. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
学科主题	Chemistry ; Materials Science ; Physics
URL标识	查看原文
语种	英语
WOS记录号	WOS:000295540800035
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11424]
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, D (reprint author), Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
作者单位	1.Chinese Acad Sci, Shandong Prov Key Lab Corros Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Bao, Qi,Zhang, Dun,Wan, Yi,et al. 2-Mercaptobenzothiazole doped chitosan/11-alkanethiolate acid composite coating: Dual function for copper protection[J]. APPLIED SURFACE SCIENCE,2011,257(24):10529-10534.
APA	Bao, Qi,Zhang, Dun,Wan, Yi,&Zhang, D .(2011).2-Mercaptobenzothiazole doped chitosan/11-alkanethiolate acid composite coating: Dual function for copper protection.APPLIED SURFACE SCIENCE,257(24),10529-10534.
MLA	Bao, Qi,et al."2-Mercaptobenzothiazole doped chitosan/11-alkanethiolate acid composite coating: Dual function for copper protection".APPLIED SURFACE SCIENCE 257.24(2011):10529-10534.

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