Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems

Autores
Di Sarli, A. R.; Elsner, Cecilia Ines; Tomachuk, C. R.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The corrosion performance of electrogalvanised steel sheets pre-treated with a Cr3+ or Cr+6 -based conversion layer and then covered with polyurethane-waterborne topcoat paint has been studied. The pre-treated metallic panels were coated with one of the three tested polyurethane (PU) topcoat paints, in which the dispersion type was the formulation variable. The pigment was TiO2 (rutile) with a PVC value of 10. Before and after the immersion in 0.05 M NaCl (pH 5.70) or 0.1 M Na2SO4 (pH 6.36) solutions, replicates of the different samples were subjected to standardized tests (porosity, gloss and color, hardness, flexibility). During the immersion, blistering and rusting degrees were evaluated through periodical visual inspections, while the coated steel performance was monitored by Electrochemical Impedance Spectroscopy (EIS) measurements. Initial (dry) and final (wet) paint adhesion was also determined. EIS data were interpreted and discussed in terms of the time dependence of the electrical (paint coating) and electrochemical (steel substrate) parameters associated with interfacial processes describing the metal/paint system deterioration. According to the electrochemical properties, visual inspection and standardized tests results, it was concluded that the studied polyurethane-based polymeric films applied on pretreated electrogalvanised steel provided a very effective protection against corrosion as a result of their excellent barrier properties.
Fil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Tomachuk, C. R.. Energy and Nuclear Research Institute; Brasil
Materia
PASSIVATION
TRIVALENT CHROMIUM
ELECTROGALVANISED STEEL
ORGANIC COATING
IMPEDANCE SPECTROSCOPY
CORROSION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11400
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/11400
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systemsDi Sarli, A. R.Elsner, Cecilia InesTomachuk, C. R.PASSIVATIONTRIVALENT CHROMIUMELECTROGALVANISED STEELORGANIC COATINGIMPEDANCE SPECTROSCOPYCORROSIONhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The corrosion performance of electrogalvanised steel sheets pre-treated with a Cr3+ or Cr+6 -based conversion layer and then covered with polyurethane-waterborne topcoat paint has been studied. The pre-treated metallic panels were coated with one of the three tested polyurethane (PU) topcoat paints, in which the dispersion type was the formulation variable. The pigment was TiO2 (rutile) with a PVC value of 10. Before and after the immersion in 0.05 M NaCl (pH 5.70) or 0.1 M Na2SO4 (pH 6.36) solutions, replicates of the different samples were subjected to standardized tests (porosity, gloss and color, hardness, flexibility). During the immersion, blistering and rusting degrees were evaluated through periodical visual inspections, while the coated steel performance was monitored by Electrochemical Impedance Spectroscopy (EIS) measurements. Initial (dry) and final (wet) paint adhesion was also determined. EIS data were interpreted and discussed in terms of the time dependence of the electrical (paint coating) and electrochemical (steel substrate) parameters associated with interfacial processes describing the metal/paint system deterioration. According to the electrochemical properties, visual inspection and standardized tests results, it was concluded that the studied polyurethane-based polymeric films applied on pretreated electrogalvanised steel provided a very effective protection against corrosion as a result of their excellent barrier properties.Fil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Tomachuk, C. R.. Energy and Nuclear Research Institute; BrasilAssociation of Academic Research2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11400Di Sarli, A. R.; Elsner, Cecilia Ines; Tomachuk, C. R.; Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems; Association of Academic Research; British Journal of Engineering and Technology; 4; 6; 2-2014; 853-8782326-425Xenginfo:eu-repo/semantics/altIdentifier/doi/10.9734/BJAST/2014/6813info:eu-repo/semantics/altIdentifier/url/http://www.sciencedomain.org/abstract/2703info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:32:04Zoai:ri.conicet.gov.ar:11336/11400instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:32:05.11CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
title Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
spellingShingle Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
Di Sarli, A. R.
PASSIVATION
TRIVALENT CHROMIUM
ELECTROGALVANISED STEEL
ORGANIC COATING
IMPEDANCE SPECTROSCOPY
CORROSION
title_short Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
title_full Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
title_fullStr Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
title_full_unstemmed Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
title_sort Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems
dc.creator.none.fl_str_mv Di Sarli, A. R.
Elsner, Cecilia Ines
Tomachuk, C. R.
author Di Sarli, A. R.
author_facet Di Sarli, A. R.
Elsner, Cecilia Ines
Tomachuk, C. R.
author_role author
author2 Elsner, Cecilia Ines
Tomachuk, C. R.
author2_role author
author
dc.subject.none.fl_str_mv PASSIVATION
TRIVALENT CHROMIUM
ELECTROGALVANISED STEEL
ORGANIC COATING
IMPEDANCE SPECTROSCOPY
CORROSION
topic PASSIVATION
TRIVALENT CHROMIUM
ELECTROGALVANISED STEEL
ORGANIC COATING
IMPEDANCE SPECTROSCOPY
CORROSION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The corrosion performance of electrogalvanised steel sheets pre-treated with a Cr3+ or Cr+6 -based conversion layer and then covered with polyurethane-waterborne topcoat paint has been studied. The pre-treated metallic panels were coated with one of the three tested polyurethane (PU) topcoat paints, in which the dispersion type was the formulation variable. The pigment was TiO2 (rutile) with a PVC value of 10. Before and after the immersion in 0.05 M NaCl (pH 5.70) or 0.1 M Na2SO4 (pH 6.36) solutions, replicates of the different samples were subjected to standardized tests (porosity, gloss and color, hardness, flexibility). During the immersion, blistering and rusting degrees were evaluated through periodical visual inspections, while the coated steel performance was monitored by Electrochemical Impedance Spectroscopy (EIS) measurements. Initial (dry) and final (wet) paint adhesion was also determined. EIS data were interpreted and discussed in terms of the time dependence of the electrical (paint coating) and electrochemical (steel substrate) parameters associated with interfacial processes describing the metal/paint system deterioration. According to the electrochemical properties, visual inspection and standardized tests results, it was concluded that the studied polyurethane-based polymeric films applied on pretreated electrogalvanised steel provided a very effective protection against corrosion as a result of their excellent barrier properties.
Fil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Tomachuk, C. R.. Energy and Nuclear Research Institute; Brasil
description The corrosion performance of electrogalvanised steel sheets pre-treated with a Cr3+ or Cr+6 -based conversion layer and then covered with polyurethane-waterborne topcoat paint has been studied. The pre-treated metallic panels were coated with one of the three tested polyurethane (PU) topcoat paints, in which the dispersion type was the formulation variable. The pigment was TiO2 (rutile) with a PVC value of 10. Before and after the immersion in 0.05 M NaCl (pH 5.70) or 0.1 M Na2SO4 (pH 6.36) solutions, replicates of the different samples were subjected to standardized tests (porosity, gloss and color, hardness, flexibility). During the immersion, blistering and rusting degrees were evaluated through periodical visual inspections, while the coated steel performance was monitored by Electrochemical Impedance Spectroscopy (EIS) measurements. Initial (dry) and final (wet) paint adhesion was also determined. EIS data were interpreted and discussed in terms of the time dependence of the electrical (paint coating) and electrochemical (steel substrate) parameters associated with interfacial processes describing the metal/paint system deterioration. According to the electrochemical properties, visual inspection and standardized tests results, it was concluded that the studied polyurethane-based polymeric films applied on pretreated electrogalvanised steel provided a very effective protection against corrosion as a result of their excellent barrier properties.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/11400
Di Sarli, A. R.; Elsner, Cecilia Ines; Tomachuk, C. R.; Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems; Association of Academic Research; British Journal of Engineering and Technology; 4; 6; 2-2014; 853-878
2326-425X
url http://hdl.handle.net/11336/11400
identifier_str_mv Di Sarli, A. R.; Elsner, Cecilia Ines; Tomachuk, C. R.; Characterization and corrosion resistance of galvanized steel/passivation composite/ polyurethane paint systems; Association of Academic Research; British Journal of Engineering and Technology; 4; 6; 2-2014; 853-878
2326-425X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.9734/BJAST/2014/6813
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedomain.org/abstract/2703
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Association of Academic Research
publisher.none.fl_str_mv Association of Academic Research
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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