Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate

Autores
Del Amo, Delia Beatriz; Romagnoli, Roberto; Vetere, Vicente Francisco
Año de publicación
1999
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The use of classic anticorrosive pigments is becoming more and more restricted by increasing environmental concerns; they are gradually being replaced by zinc phosphate and related compounds. Other anticorrosive pigments such as surface-exchanged silicas were also proposed. The object of this research is to study the anticorrosive properties of calcium acid phosphate as an inhibitive pigment, introducing a careful selection of complementary pigments in order to achieve an efficient anticorrosive protection. Several alkyd paints were prepared and evaluated through accelerated and electrochemical tests. The nature of the passive film formed was also studied. Paint containing zinc oxide and calcium carbonate (50/50) as complementary pigments showed the best performance in the salt spray test. Zinc oxide and calcium carbonate decreased film permeability and improved steel passivation. The passive film was composed of ferric oxyhydroxide, the pores of which became plugged by ferric phosphate.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Materia
Ingeniería Química
Corrosión
Pinturas
pigmentos
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/174967
Acceder
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network_name_str SEDICI (UNLP)
spelling Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphateDel Amo, Delia BeatrizRomagnoli, RobertoVetere, Vicente FranciscoIngeniería QuímicaCorrosiónPinturaspigmentosThe use of classic anticorrosive pigments is becoming more and more restricted by increasing environmental concerns; they are gradually being replaced by zinc phosphate and related compounds. Other anticorrosive pigments such as surface-exchanged silicas were also proposed. The object of this research is to study the anticorrosive properties of calcium acid phosphate as an inhibitive pigment, introducing a careful selection of complementary pigments in order to achieve an efficient anticorrosive protection. Several alkyd paints were prepared and evaluated through accelerated and electrochemical tests. The nature of the passive film formed was also studied. Paint containing zinc oxide and calcium carbonate (50/50) as complementary pigments showed the best performance in the salt spray test. Zinc oxide and calcium carbonate decreased film permeability and improved steel passivation. The passive film was composed of ferric oxyhydroxide, the pores of which became plugged by ferric phosphate.Centro de Investigación y Desarrollo en Tecnología de Pinturas1999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2310-2314http://sedici.unlp.edu.ar/handle/10915/174967enginfo:eu-repo/semantics/altIdentifier/issn/0888-5885info:eu-repo/semantics/altIdentifier/doi/10.1021/ie9805638info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:27:54Zoai:sedici.unlp.edu.ar:10915/174967Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:27:55.025SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
title Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
spellingShingle Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
Del Amo, Delia Beatriz
Ingeniería Química
Corrosión
Pinturas
pigmentos
title_short Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
title_full Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
title_fullStr Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
title_full_unstemmed Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
title_sort Steel corrosion protection by means of alkyd paints pigmented with calcium acid phosphate
dc.creator.none.fl_str_mv Del Amo, Delia Beatriz
Romagnoli, Roberto
Vetere, Vicente Francisco
author Del Amo, Delia Beatriz
author_facet Del Amo, Delia Beatriz
Romagnoli, Roberto
Vetere, Vicente Francisco
author_role author
author2 Romagnoli, Roberto
Vetere, Vicente Francisco
author2_role author
author
dc.subject.none.fl_str_mv Ingeniería Química
Corrosión
Pinturas
pigmentos
topic Ingeniería Química
Corrosión
Pinturas
pigmentos
dc.description.none.fl_txt_mv The use of classic anticorrosive pigments is becoming more and more restricted by increasing environmental concerns; they are gradually being replaced by zinc phosphate and related compounds. Other anticorrosive pigments such as surface-exchanged silicas were also proposed. The object of this research is to study the anticorrosive properties of calcium acid phosphate as an inhibitive pigment, introducing a careful selection of complementary pigments in order to achieve an efficient anticorrosive protection. Several alkyd paints were prepared and evaluated through accelerated and electrochemical tests. The nature of the passive film formed was also studied. Paint containing zinc oxide and calcium carbonate (50/50) as complementary pigments showed the best performance in the salt spray test. Zinc oxide and calcium carbonate decreased film permeability and improved steel passivation. The passive film was composed of ferric oxyhydroxide, the pores of which became plugged by ferric phosphate.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
description The use of classic anticorrosive pigments is becoming more and more restricted by increasing environmental concerns; they are gradually being replaced by zinc phosphate and related compounds. Other anticorrosive pigments such as surface-exchanged silicas were also proposed. The object of this research is to study the anticorrosive properties of calcium acid phosphate as an inhibitive pigment, introducing a careful selection of complementary pigments in order to achieve an efficient anticorrosive protection. Several alkyd paints were prepared and evaluated through accelerated and electrochemical tests. The nature of the passive film formed was also studied. Paint containing zinc oxide and calcium carbonate (50/50) as complementary pigments showed the best performance in the salt spray test. Zinc oxide and calcium carbonate decreased film permeability and improved steel passivation. The passive film was composed of ferric oxyhydroxide, the pores of which became plugged by ferric phosphate.
publishDate 1999
dc.date.none.fl_str_mv 1999
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/174967
url http://sedici.unlp.edu.ar/handle/10915/174967
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0888-5885
info:eu-repo/semantics/altIdentifier/doi/10.1021/ie9805638
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
2310-2314
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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