Assessment of polyester and polyvinylester coatings in a simulated FGD scrubbing liquid with EIS

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题名:	Assessment of polyester and polyvinylester coatings in a simulated FGD scrubbing liquid with EIS
作者:	Lin,JC;Lue,LY;Chyou,SD;Horng,HN
贡献者:	機械工程學系
关键词:	AC IMPEDANCE MEASUREMENTS;CORROSION BEHAVIOR;PAINTED METALS;PERFORMANCE
日期:	1996
上传时间:	2010-06-29 18:05:50 (UTC+8)
出版者:	中央大學
摘要:	Corrosion behaviours of carbon steel coated with polyester and polyvinylester in a simulated flue gas desulphurisation (FGD) fluid (i.e., a mixture of H2SO4 and 0.1 wt% Fe-2(SO4)(3) at pH=2) have been investigated with electrochemical impedance spectroscopy (EIS). The protective nature of the coatings at 25 degrees C has been observed in the following order: polyvinylester primer >> polyvinylester topcoat > polyester topcoat > polyester primer. Coating deterioration occurred and the coating deterioration rate accelerated with increasing temperatures upto 85 degrees C. However, the corrosion resistance sequence has remained the same. Equivalent circuits are suggested for various coatings to discuss their mechanisms in this work.
關聯:	JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS
显示于类别:	[機械工程研究所] 期刊論文

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