The effect of surface modification of zinc particles with phosphoric acid on the corrosion resistance of cold galvanizing coatings

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	The effect of surface modification of zinc particles with phosphoric acid on the corrosion resistance of cold galvanizing coatings
	Xu, L; Liu, FC; Wang, ZY; Ke, W; Han, EH; Jie, GX; Wang, J; Huang, HJ; Liu, FC (reprint author), Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
刊名	PROGRESS IN ORGANIC COATINGS
	2018
卷号	114 页码:90-101
关键词	Rich Powder Coatings Electrochemical Impedance Spectroscopy Artificial Sea-water Nacl Solution Coated Steel Paints Phosphate Behavior Eis Improvement
ISSN号	0300-9440
英文摘要	The surface modification of zinc particles using phosphoric acid was conducted to improve the corrosion resistance of Cold galvanizing coatings. The modified zinc particles were characterized by Scanning Electron Microscope (SEM) and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) and Scanning Vibrating Electrode Technique (SVET) were performed to investigate the corrosion protection mechanism of the coating. The electrochemical activity of zinc particles were found decreased because of the formation of Zn-3(PO4)center dot 4H(2)O on the surface of the particle. Little lamellar-shaped phosphate was also observed after surface modification. The best anti-corrosion performance of the coating was achieved when using zinc particles modified with 1% phosphoric acid as the fillings. This improvement was accomplished by the combined effect of reduced electrochemical activity of surface modified zinc particles and block effect from lamellar-shaped phosphate.; The surface modification of zinc particles using phosphoric acid was conducted to improve the corrosion resistance of Cold galvanizing coatings. The modified zinc particles were characterized by Scanning Electron Microscope (SEM) and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) and Scanning Vibrating Electrode Technique (SVET) were performed to investigate the corrosion protection mechanism of the coating. The electrochemical activity of zinc particles were found decreased because of the formation of Zn-3(PO4)center dot 4H(2)O on the surface of the particle. Little lamellar-shaped phosphate was also observed after surface modification. The best anti-corrosion performance of the coating was achieved when using zinc particles modified with 1% phosphoric acid as the fillings. This improvement was accomplished by the combined effect of reduced electrochemical activity of surface modified zinc particles and block effect from lamellar-shaped phosphate.
学科主题	Chemistry, Applied ; Materials Science, Coatings & Films
语种	英语
资助机构	National Basic Research Program of China [2014CB643304]; Key Technology of Corrosion Control on Wind Power Equipment Academician Workstation Project [2013B090400023]; Guangzhou Industry University Research Collaborative Innovation Alliance Special Subject [201604046014]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79623]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, FC (reprint author), Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Xu, L,Liu, FC,Wang, ZY,et al. The effect of surface modification of zinc particles with phosphoric acid on the corrosion resistance of cold galvanizing coatings[J]. PROGRESS IN ORGANIC COATINGS,2018,114:90-101.
APA	Xu, L.,Liu, FC.,Wang, ZY.,Ke, W.,Han, EH.,...&Liu, FC .(2018).The effect of surface modification of zinc particles with phosphoric acid on the corrosion resistance of cold galvanizing coatings.PROGRESS IN ORGANIC COATINGS,114,90-101.
MLA	Xu, L,et al."The effect of surface modification of zinc particles with phosphoric acid on the corrosion resistance of cold galvanizing coatings".PROGRESS IN ORGANIC COATINGS 114(2018):90-101.