STUDY ON THE EFFECT OF ZINC PIGMENTS SIZE ON THE ELECTROCHEMICAL BEHAVIOR OF ORGANIC ZINC-RICH COATINGS

J Chin Soc Corr Pro

2003, Vol. 23

Issue (6): 350-354 DOI:

Research Report

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STUDY ON THE EFFECT OF ZINC PIGMENTS SIZE ON THE ELECTROCHEMICAL BEHAVIOR OF ORGANIC ZINC-RICH COATINGS

Bin Liu;Ying Li;Fuhui Wang

中科院沈阳金属研究所;金属腐蚀与防护国家重点实验室

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Abstract The electrochemical behavior of zinc-rich epoxy coa tings with different size of zinc pigments has been studied by EIS.The experimen tal results showed that,in the cathodic protection stage,the coating with nano-s cale zinc pigments could provide galvanic protection more efficiently,but had no effect on the duration of cathodic protection.However,in the barrier protection stage,the coating with nano-scale zinc pigments had lower zinc dissolution rate ,lower coating capacitance and higher coating resistance,becoming more efficient in barrier protection.

Key words: pigment size organic zinc-rich coatings electrochemi cal behavior EIS

Received: 23 April 2003

ZTFLH:

TG174.41

Corresponding Authors: Bin Liu

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Bin Liu; Ying Li; Fuhui Wang. STUDY ON THE EFFECT OF ZINC PIGMENTS SIZE ON THE ELECTROCHEMICAL BEHAVIOR OF ORGANIC ZINC-RICH COATINGS. J Chin Soc Corr Pro, 2003, 23(6): 350-354 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2003/V23/I6/350

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