Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method
Abstract The aim of this paper is to investigate and discuss the mechanisms of corrosion of epoxy coatings used for potable water tanks. Two distinct types of Jotun epoxy coatings: Tankguard 412 contained polyamine cured epoxy and Penguard HB contained polyamide cured epoxy, were tested and st...
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Al-Khwarizmi College of Engineering – University of Baghdad
2017
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oai:doaj.org-article:029b7de1a40e478fa4719ed9a00edff62021-12-02T06:09:01ZEvaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method10.22153/kej.2017.12.0051818-11712312-0789https://doaj.org/article/029b7de1a40e478fa4719ed9a00edff62017-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/353https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Abstract The aim of this paper is to investigate and discuss the mechanisms of corrosion of epoxy coatings used for potable water tanks. Two distinct types of Jotun epoxy coatings: Tankguard 412 contained polyamine cured epoxy and Penguard HB contained polyamide cured epoxy, were tested and studied using the electrochemical impedance spectroscopic (EIS) method. The porosity of epoxy coatings was determined using EIS method. The obtained results showed that the two epoxy coatings have excellent behavior when applied and tested in potable water of Basrah city. Polyamine is more resistance to water corrosion compared to polyamide curing epoxy and has high impedance values. Microscopic inspection after test showed that the polyamine cured epoxy has blistering while the surface of polyamide cured epoxy showed pitting and blisters. Keywords: Corrosion mechanism , epoxy coats, porosity, potable water, , EIS method. Haider Hadi JasimAl-Khwarizmi College of Engineering – University of BaghdadarticleCorrosion mechanism , epoxy coats, porosity, potable water, , EIS method.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 13, Iss 2 (2017) |
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Corrosion mechanism , epoxy coats, porosity, potable water, , EIS method. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 |
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Corrosion mechanism , epoxy coats, porosity, potable water, , EIS method. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Haider Hadi Jasim Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
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Abstract
The aim of this paper is to investigate and discuss the mechanisms of corrosion of epoxy coatings used for potable water tanks. Two distinct types of Jotun epoxy coatings: Tankguard 412 contained polyamine cured epoxy and Penguard HB contained polyamide cured epoxy, were tested and studied using the electrochemical impedance spectroscopic (EIS) method. The porosity of epoxy coatings was determined using EIS method. The obtained results showed that the two epoxy coatings have excellent behavior when applied and tested in potable water of Basrah city. Polyamine is more resistance to water corrosion compared to polyamide curing epoxy and has high impedance values. Microscopic inspection after test showed that the polyamine cured epoxy has blistering while the surface of polyamide cured epoxy showed pitting and blisters.
Keywords: Corrosion mechanism , epoxy coats, porosity, potable water, , EIS method.
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format |
article |
author |
Haider Hadi Jasim |
author_facet |
Haider Hadi Jasim |
author_sort |
Haider Hadi Jasim |
title |
Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
title_short |
Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
title_full |
Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
title_fullStr |
Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
title_full_unstemmed |
Evaluations of Potable Water Tanks Epoxy Coatings Performance Using Electrochemical Impedance Spectroscopic Method |
title_sort |
evaluations of potable water tanks epoxy coatings performance using electrochemical impedance spectroscopic method |
publisher |
Al-Khwarizmi College of Engineering – University of Baghdad |
publishDate |
2017 |
url |
https://doaj.org/article/029b7de1a40e478fa4719ed9a00edff6 |
work_keys_str_mv |
AT haiderhadijasim evaluationsofpotablewatertanksepoxycoatingsperformanceusingelectrochemicalimpedancespectroscopicmethod |
_version_ |
1718400031888769024 |