Short-term deterioration of polymer-coated 55% Al-Zn .1. Behavior of thin polymer films

被引：136

作者：

Mertens, SF ^{[1
]}

Xhoffer, C ^{[1
]}

DeCooman, BC ^{[1
]}

Temmerman, E ^{[1
]}

机构：

[1] OCAS NV,B-9060 ZELZATE,BELGIUM

来源：

CORROSION | 1997年 / 53卷 / 05期

关键词：

aluminum; coatings; degradation; electrochemical impedance spectroscopy; films and film formation; modeling; organic films; zinc;

D O I：

10.5006/1.3280481

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical behavior of 55% Al-Zn coated steel sheet, on which a very thin polymeric film (approximate to 1 mu m) was applied, was studied using electrochemical impedance spectroscopy (EIS). Use of a straightforward electric model to analyze the spectra obtained with different polymer films allowed correlation of the coating parameters and the physicochemical processes occurring on a microscale. Exposure to a 0.5% sodium chloride (NaCl) solution for variable time periods gave new insight into the mechanisms of protection and short-term degradation of the coating.

引用

页码：381 / 388

页数：8

共 11 条

[1]

[Anonymous], EQUIVALENT CIRCUITS

[2] POLYMER PROTECTIVE COATINGS - THE DISTINCTION BETWEEN COATING POROSITY AND THE WETTED METAL AREA [J].