Acta Metall Sin  2005, Vol. 41 Issue (7): 769-774     DOI:

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Influence of the Pigment Shape on the Electrochemical Behaviors of Zinc—Rich Paint Coatings in 3.5% NaCl Solution

XIE Deming; TONG Shaoping; FENG Hai ZHANG Jianqing

Zhejiang University of Technology; Hangzhou 310032

XIE Deming; TONG Shaoping; FENG Hai ZHANG Jianqing. Influence of the Pigment Shape on the Electrochemical Behaviors of Zinc—Rich Paint Coatings in 3.5% NaCl Solution. Acta Metall Sin, 2005, 41(7): 769-774 .

Abstract References Related Articles Recommended Metrics Download:  PDF(500KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Electrochemical impedance spectroscopy (EIS) was used to study the influences of the binder, pigment shape and the coating thickness on the corrosion prevention performance of the zinc--rich coatings (ZRC). There are two time constants for these coatings, the first one is attributed to the contact impedances between the different zinc particles and the second one is related to the charge transfer resistance of the Zn dissolution process. Furthermore, the EIS data of ZRC were interpreted according to equivalent circuit models. The corresponding parameters were derived to assess the coating deterioration with time and the performance between zinc dust primers and zinc flake primers were compared. The results showed that the zinc flake reduced the cathodic protection period of the ZRC and rapidly produced a little compact barrier. Key words:  zinc--rich paint      zinc flake      zinc dust       Received:  01 November 2004      ZTFLH:  TG172   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors XIE Deming TONG Shaoping FENG Hai ZHANG Jianqing URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2005/V41/I7/769 [1] Hare C H. Wright S J. J Coat Technol, 1982, 54(693): 65 [2] Giudice C B, Linares M M. Surf Coat Int, 1997; 80(6): 279 [3] Real S G, Elias A C, Vilche J R, Gervasi C A, Di Sarli A. Eectrochi Acta, 1993; 38: 2029 [4] Pereira D, Scantlebury J D, Ferreira M G S, Almeida E. Corros Sci, 1990; 30: 1135 [5] Feliu S, Barajas J, Morcillo M. Corrosion, 2001; 57: 591 [6] Izquierdo M, Novoa X R, Pena G, Espada L. Mater Sci Forum, 1992, 111-112: 257 [7] Gervasi C A, Di Sarli A R, Cavalcanti E, Ferraz O, Bucharsky E C, Real S G, Vilche J R. Corros Sci, 1994; 36(12): 1963 [8] Molnar F, Liszi J. Protective Properties of Zinc-rich Paints. 2001 Joint International Meeting-the 200th Meet ing of The Electrochemical Society, Inc. and the 52nd Annual Meeting of the International Society of Electrochemistry, San Francisco, California, 2001: 581 [9] Zhang J Q. Chin Soc Gorros Prot, 1996, 16: 175 (张鉴清,中国腐蚀与防护学报, 1996;16(1):175) [10] Armas R A, Gervasi C A, Di Sarli A, Real S G, Vilche J R. Corrosion, 1992; 48(5): 379 [11] Abreu C M, Izquierdo M, Keddam M, Novoa X R, Takenouti H. Electrochim Acta, 1996; 41: 2405 [12] Xie D M, Wang J M, Hu J M, Zhang J Q. Trans Nonferrous Met Soc Chin, 2002; 12: 1036 [13] Xie D M, Wang J M, Hu J M, Zhang J Q. Trans Nonferrous Met Soc Chin, 2003; 13: 421 [14] Abreu C M, Izquierdo M, Merino P, Novoa X R, Perez C. Corrosion, 1999; 55: 1173 [15] Hare C H. J Prot Goat Lining, 1998; 15(8): 41 [16] Gervasi C, Armas R, Di Sarli A R, Bucharsky E C, Real S G, Vilche J R. Mater Sci Forum, 1995; 192-194: 357 [17] Xie D M, Hu J M, Tong S P, Zheng Y, Wang J M, Zhang J Q. Acta Metall Sin, 2004; 40: 103 (谢德明,胡吉明,童少平,郑 奕,王建明,张鉴清．金属学 报,2004;40:103) [1] XIE Deming; TONG Shaoping; HU Jiming; ZHENG Yi; WANG Jianming; ZHANG Jianqing. STUDY OF THE ELECTROCHEMICAL BEHAVIORS OF THE ZINC--RICH PAINTS BASED MULTILAYER ORGANIC COATINGS IN NaCl SOLUTION[J]. 金属学报, 2004, 40(7): 749-753 . No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed