Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum

Autores
Byrne, Christian Eduardo; D'Alessandro, Oriana; Deyá, Marta Cecilia
Año de publicación
2021
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Tara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispersive x-ray spectroscopy shows a low formation of corrosion products, absence of Cl and presence of C. These results indicate that tannins act as a mixed-type inhibitor without changing the mechanism of oxygen or aluminum reactions, and that tannin is adsorbed on aluminum surfaces forming a compact hydrophobic barrier that blocks anodic and cathodic areas. A tara tannin primer was formulated and applied on aluminum. Its anticorrosive properties were studied by electrochemical techniques and humidity chamber testing, in which it exhibited an acceptable performance compared with a zinc tetroxychromate primer. Taking into account their less harmful environmental impact, tara tannins are proposed as an alternative to chromates in the formulation of wash-primers.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Materia
Ingeniería Química
aluminum
corrosion
green anticorrosive pigment
tannins
tara
wash-primer
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/135514
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/135514
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Tara Tannins as a Green Sustainable Corrosion Inhibitor for AluminumByrne, Christian EduardoD'Alessandro, OrianaDeyá, Marta CeciliaIngeniería Químicaaluminumcorrosiongreen anticorrosive pigmenttanninstarawash-primerTara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispersive x-ray spectroscopy shows a low formation of corrosion products, absence of Cl and presence of C. These results indicate that tannins act as a mixed-type inhibitor without changing the mechanism of oxygen or aluminum reactions, and that tannin is adsorbed on aluminum surfaces forming a compact hydrophobic barrier that blocks anodic and cathodic areas. A tara tannin primer was formulated and applied on aluminum. Its anticorrosive properties were studied by electrochemical techniques and humidity chamber testing, in which it exhibited an acceptable performance compared with a zinc tetroxychromate primer. Taking into account their less harmful environmental impact, tara tannins are proposed as an alternative to chromates in the formulation of wash-primers.Centro de Investigación y Desarrollo en Tecnología de Pinturas2021-11-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2918-2933http://sedici.unlp.edu.ar/handle/10915/135514spainfo:eu-repo/semantics/altIdentifier/issn/1544-1024info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-021-06437-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:34:20Zoai:sedici.unlp.edu.ar:10915/135514Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:34:21.178SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
title Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
spellingShingle Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
Byrne, Christian Eduardo
Ingeniería Química
aluminum
corrosion
green anticorrosive pigment
tannins
tara
wash-primer
title_short Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
title_full Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
title_fullStr Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
title_full_unstemmed Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
title_sort Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
dc.creator.none.fl_str_mv Byrne, Christian Eduardo
D'Alessandro, Oriana
Deyá, Marta Cecilia
author Byrne, Christian Eduardo
author_facet Byrne, Christian Eduardo
D'Alessandro, Oriana
Deyá, Marta Cecilia
author_role author
author2 D'Alessandro, Oriana
Deyá, Marta Cecilia
author2_role author
author
dc.subject.none.fl_str_mv Ingeniería Química
aluminum
corrosion
green anticorrosive pigment
tannins
tara
wash-primer
topic Ingeniería Química
aluminum
corrosion
green anticorrosive pigment
tannins
tara
wash-primer
dc.description.none.fl_txt_mv Tara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispersive x-ray spectroscopy shows a low formation of corrosion products, absence of Cl and presence of C. These results indicate that tannins act as a mixed-type inhibitor without changing the mechanism of oxygen or aluminum reactions, and that tannin is adsorbed on aluminum surfaces forming a compact hydrophobic barrier that blocks anodic and cathodic areas. A tara tannin primer was formulated and applied on aluminum. Its anticorrosive properties were studied by electrochemical techniques and humidity chamber testing, in which it exhibited an acceptable performance compared with a zinc tetroxychromate primer. Taking into account their less harmful environmental impact, tara tannins are proposed as an alternative to chromates in the formulation of wash-primers.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
description Tara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispersive x-ray spectroscopy shows a low formation of corrosion products, absence of Cl and presence of C. These results indicate that tannins act as a mixed-type inhibitor without changing the mechanism of oxygen or aluminum reactions, and that tannin is adsorbed on aluminum surfaces forming a compact hydrophobic barrier that blocks anodic and cathodic areas. A tara tannin primer was formulated and applied on aluminum. Its anticorrosive properties were studied by electrochemical techniques and humidity chamber testing, in which it exhibited an acceptable performance compared with a zinc tetroxychromate primer. Taking into account their less harmful environmental impact, tara tannins are proposed as an alternative to chromates in the formulation of wash-primers.
publishDate 2021
dc.date.none.fl_str_mv 2021-11-22
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/10915/135514
url http://sedici.unlp.edu.ar/handle/10915/135514
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1544-1024
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-021-06437-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
2918-2933
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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score 13.070432

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