EIS study of corrosion behaviour of organic coating/Dacromet composite systems

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	EIS study of corrosion behaviour of organic coating/Dacromet composite systems
	J. G. Liu; G. P. Gong; C. W. Yan
	2005
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	50 期号:16-17 页码:3320-3332
摘要	Three organic coating/Dacromet composite systems, namely two solvent-borne coatings, polyurethane, alkyd primers and a water-borne coating, styrene-acrylate emulsion, were prepared on Dacrometed carbon steel. Electrochemical impedance spectroscopy (EIS) was employed to study their corrosion behaviour in 3.5% NaCl medium. Characteristic EIS plots with two undistinguishable loops were observed for the styrene-acrylate emulsion/Dacromet system and of which the second one was greatly flatter with immersion time. The stable evolution of R-p, C-p, C-d, and a higher value of R-c illustrated an original fact that the water-borne styrene-acrylate emulsion/Dacromet system exhibited the best protective performance among the three systems. According to the investigation of thin organic film/Dacromet composite systems, a synergetic effect of multiple interface factors including the passivation, the seal and barrier function of insoluble corrosion product of Dacromet, especially the interpenetration of organic micropolymer particle with corrosion product in styrene-acrylate emulsion/Dacromet system was proposed to explain the corrosion behaviour of the composite systems. © 2004 Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, grad sch, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;liu, jg (reprint author), chinese acad sci, grad sch, met res inst, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;jgliu@imr.ac.cn
关键词	Dacromet Eis Corrosion Behaviour Organic Coating Composite Synergetic Effect Electrochemical Impedance Spectroscopy Protective-coatings Mild-steel Paints Deterioration Degradation Performance Pigments
URL	查看原文
WOS记录号	WOS:000229570300017
引用统计	被引频次：80[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34936
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. G. Liu,G. P. Gong,C. W. Yan. EIS study of corrosion behaviour of organic coating/Dacromet composite systems[J]. Electrochimica Acta,2005,50(16-17):3320-3332.
APA	J. G. Liu,G. P. Gong,&C. W. Yan.(2005).EIS study of corrosion behaviour of organic coating/Dacromet composite systems.Electrochimica Acta,50(16-17),3320-3332.
MLA	J. G. Liu,et al."EIS study of corrosion behaviour of organic coating/Dacromet composite systems".Electrochimica Acta 50.16-17(2005):3320-3332.