Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism

In this investigation, the synergism pro moted by zinc hypophosphite in an anticorrosive pigment mixture is reported. This paper describes the anticorrosive behavior of a commercial pigment mix ture containing zinc hypophosphite, reduced levels of zinc phosphate, and zinc oxide. The anticorrosive pe...

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Autores principales: Deyá, Marta Cecilia, Blustein, Guillermo, Romagnoli, Roberto, Del Amo, Delia Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Química
Anticorrosive paints
Electrochemical test
Phosphate pigments
Zinc hypophosphite
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/168544
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-168544
record_format dspace
spelling I19-R120-10915-1685442024-08-15T04:08:57Z http://sedici.unlp.edu.ar/handle/10915/168544 Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism Deyá, Marta Cecilia Blustein, Guillermo Romagnoli, Roberto Del Amo, Delia Beatriz 2009 2024-08-14T17:48:24Z en Química Anticorrosive paints Electrochemical test Phosphate pigments Zinc hypophosphite In this investigation, the synergism pro moted by zinc hypophosphite in an anticorrosive pigment mixture is reported. This paper describes the anticorrosive behavior of a commercial pigment mix ture containing zinc hypophosphite, reduced levels of zinc phosphate, and zinc oxide. The anticorrosive performance of the pigment mixture was assessed by electrochemical techniques (corrosion potential and linear polarization measurements) employing pigment suspensions. The behavior of each separate component of the mixture was also studied in the same way. The nature of the protective layer was investigated by scanning electron microscopy (SEM). In a second stage, the anticorrosive properties of the pigment were assessed by incorporating it into alkyd and epoxy paints that were evaluated by accelerated (salt spray and humidity tests) and electrochemical measure ments. Experimental results showed that improved anticorrosion protection is achieved in paints with reduced zinc phosphate contents as a consequence of the synergistic interaction between zinc hypophosphite and the other components of the pigment mixture. 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 369-376
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Anticorrosive paints
Electrochemical test
Phosphate pigments
Zinc hypophosphite
spellingShingle Química
Anticorrosive paints
Electrochemical test
Phosphate pigments
Zinc hypophosphite
Deyá, Marta Cecilia
Blustein, Guillermo
Romagnoli, Roberto
Del Amo, Delia Beatriz
Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
topic_facet Química
Anticorrosive paints
Electrochemical test
Phosphate pigments
Zinc hypophosphite
description In this investigation, the synergism pro moted by zinc hypophosphite in an anticorrosive pigment mixture is reported. This paper describes the anticorrosive behavior of a commercial pigment mix ture containing zinc hypophosphite, reduced levels of zinc phosphate, and zinc oxide. The anticorrosive performance of the pigment mixture was assessed by electrochemical techniques (corrosion potential and linear polarization measurements) employing pigment suspensions. The behavior of each separate component of the mixture was also studied in the same way. The nature of the protective layer was investigated by scanning electron microscopy (SEM). In a second stage, the anticorrosive properties of the pigment were assessed by incorporating it into alkyd and epoxy paints that were evaluated by accelerated (salt spray and humidity tests) and electrochemical measure ments. Experimental results showed that improved anticorrosion protection is achieved in paints with reduced zinc phosphate contents as a consequence of the synergistic interaction between zinc hypophosphite and the other components of the pigment mixture.
format Articulo
Articulo
author Deyá, Marta Cecilia
Blustein, Guillermo
Romagnoli, Roberto
Del Amo, Delia Beatriz
author_facet Deyá, Marta Cecilia
Blustein, Guillermo
Romagnoli, Roberto
Del Amo, Delia Beatriz
author_sort Deyá, Marta Cecilia
title Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
title_short Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
title_full Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
title_fullStr Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
title_full_unstemmed Zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
title_sort zinc hypophosphite: a suitable additive for anticorrosive paints to promote pigments synergism
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/168544
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AT blusteinguillermo zinchypophosphiteasuitableadditiveforanticorrosivepaintstopromotepigmentssynergism
AT romagnoliroberto zinchypophosphiteasuitableadditiveforanticorrosivepaintstopromotepigmentssynergism
AT delamodeliabeatriz zinchypophosphiteasuitableadditiveforanticorrosivepaintstopromotepigmentssynergism
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