Influence of the composition of zinc-ethyl silicate paints on electrochemical properties

The protection of steel by zinc-ethyl silicate primers is based on the general principle of cathodic protection by metallic zinc in contact with a ferrous substrate. The influence of the zinc content on the paint behaviour has been studied, but little attention has been paid to effects caused by the...

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Detalles Bibliográficos
Autores principales: Romagnoli, Roberto, Vetere, Vicente Francisco, Armas, R. A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
Materias:
Química
Electrochemical
Zinc-ethyl silicate
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/174854
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-174854
record_format dspace
spelling I19-R120-10915-1748542024-12-13T20:17:50Z http://sedici.unlp.edu.ar/handle/10915/174854 Influence of the composition of zinc-ethyl silicate paints on electrochemical properties Romagnoli, Roberto Vetere, Vicente Francisco Armas, R. A. 1994 2024-12-13T14:20:04Z en Química Electrochemical Zinc-ethyl silicate The protection of steel by zinc-ethyl silicate primers is based on the general principle of cathodic protection by metallic zinc in contact with a ferrous substrate. The influence of the zinc content on the paint behaviour has been studied, but little attention has been paid to effects caused by the incorporation of additives, such as extender pigments, to the formulation. The aim of this paper is to study the influence of the whole composition of zinc-ethyl silicate paints on their electrochemical properties. A second purpose is to establish the nature of the anticorrosive action of these paints. Four commercial zinc-ethyl silicate paints were chosen for these investigations. It was found that the incorporation of extender pigments modified the behaviour of these paints. The anticorrosive action was due to the cathodic protection by zinc powder and the inhibition of the electrochemical reactions by corrosion products. The barrier effect, in the sense of ohmic resistance, provided by these paints was of lesser importance. Centro de Investigación y Desarrollo en Tecnología de Pinturas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 1013-1018
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Electrochemical
Zinc-ethyl silicate
spellingShingle Química
Electrochemical
Zinc-ethyl silicate
Romagnoli, Roberto
Vetere, Vicente Francisco
Armas, R. A.
Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
topic_facet Química
Electrochemical
Zinc-ethyl silicate
description The protection of steel by zinc-ethyl silicate primers is based on the general principle of cathodic protection by metallic zinc in contact with a ferrous substrate. The influence of the zinc content on the paint behaviour has been studied, but little attention has been paid to effects caused by the incorporation of additives, such as extender pigments, to the formulation. The aim of this paper is to study the influence of the whole composition of zinc-ethyl silicate paints on their electrochemical properties. A second purpose is to establish the nature of the anticorrosive action of these paints. Four commercial zinc-ethyl silicate paints were chosen for these investigations. It was found that the incorporation of extender pigments modified the behaviour of these paints. The anticorrosive action was due to the cathodic protection by zinc powder and the inhibition of the electrochemical reactions by corrosion products. The barrier effect, in the sense of ohmic resistance, provided by these paints was of lesser importance.
format Articulo
Articulo
author Romagnoli, Roberto
Vetere, Vicente Francisco
Armas, R. A.
author_facet Romagnoli, Roberto
Vetere, Vicente Francisco
Armas, R. A.
author_sort Romagnoli, Roberto
title Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
title_short Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
title_full Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
title_fullStr Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
title_full_unstemmed Influence of the composition of zinc-ethyl silicate paints on electrochemical properties
title_sort influence of the composition of zinc-ethyl silicate paints on electrochemical properties
publishDate 1994
url http://sedici.unlp.edu.ar/handle/10915/174854
work_keys_str_mv AT romagnoliroberto influenceofthecompositionofzincethylsilicatepaintsonelectrochemicalproperties
AT veterevicentefrancisco influenceofthecompositionofzincethylsilicatepaintsonelectrochemicalproperties
AT armasra influenceofthecompositionofzincethylsilicatepaintsonelectrochemicalproperties
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