AN INVESTIGATION INTO THE CATHODIC DELAMINATION OF EPOXY-POLYAMINE PROTECTIVE COATINGS

被引：14

作者：

ARMSTRONG, RD

JOHNSON, BW

WRIGHT, JD

机构：

[1] Department of Chemistry, University of Newcastle upon Tyne, Newcastle upon Tyne, NE1 7RU, Bedson Building

来源：

ELECTROCHIMICA ACTA | 1991年 / 36卷 / 13期

关键词：

PROTECTIVE COATINGS; EPOXY-POLYAMINE; CATHODIC DELAMINATION;

D O I：

10.1016/0013-4686(91)85073-G

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The behaviour of epoxy-polyamine protective coatings under conditions of cathodic protection has been investigated. The coatings slowly lose their barrier properties so far as ions are concerned. This appears to be due to the generation of a high pH at the coating metal substrate and the formation of aqueous channels which penetrate from the aqueous solution to the metal.

引用

页码：1915 / 1923

页数：9

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