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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.
2018
Source PublicationPROGRESS IN ORGANIC COATINGS
ISSN0300-9440
Volume114Pages:90-101
AbstractThe 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.
description.department[xu, long ; liu, fuchun ; wang, zhenyu ; ke, wei ; han, en-hou] chinese acad sci, key lab nucl mat & safety assessment, inst met res, shenyang 110016, liaoning, peoples r china ; [jie, gangxin ; wang, jun ; huang, haijun] china natl elect apparat res inst co ltd, state key lab environm adaptabil ind prod, guangzhou 510633, guangdong, peoples r china ; [xu, long ; liu, fuchun ; wang, zhenyu ; ke, wei ; han, en-hou] univ sci & technol china, mat sci & engn coll, shenyang 110016, liaoning, peoples r china
KeywordRich Powder Coatings Electrochemical Impedance Spectroscopy Artificial Sea-water Nacl Solution Coated Steel Paints Phosphate Behavior Eis Improvement
Subject AreaChemistry, Applied ; Materials Science, Coatings & Films
Funding OrganizationNational 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]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79623
Collection中国科学院金属研究所
Corresponding AuthorLiu, FC (reprint author), Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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.
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