Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection

Autores
D'Alessandro, Oriana; Selmi, Gonzalo; Deyá, Marta Cecilia; Di Sarli, Alejandro Ramón; Romagnoli, Roberto
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Tannins are polyphenols synthesized by plants and useful for the coating industry as corrosion inhibitors. In addition, lanthanum salts have a great inhibitory effect on steel corrosion. The aim of this study was to obtain lanthanum ‘‘tannate’’ with adequate solubility to be incorporated as the corrosion inhibitor in a wash-primer. The ‘‘tannate’’ was obtained from commercial ‘‘Quebracho’’ tannin and 0.1 M La(NO3)3. The soluble tannin was determined by the Folin–Denis reagent, while the concentration of Lanthanum was obtained by a gravimetric procedure. The protective action of ‘‘tannate’’ on SAE 1010 steel was evaluated by linear polarization curves and corrosion potential measurements. Lanthanum ‘‘tannate’’ was incorporated in a wash-primer formulation and tested by corrosion potential and ionic resistance measurements. The corrosion rate was also determined by the polarization resistance technique. Besides, the primer was incorporated in an alkyd paint system and its anticorrosion performance assessed in the salt spray cabinet and by electrochemical impedance spectroscopy. Results showed that lanthanum ‘‘tannate’’ primer inhibits the development of deleterious iron oxyhydroxides on the steel substrate and incorporated into a paint system had a similar behavior to the primer formulated with zinc tetroxychromate.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Materia
Ingeniería Química
Coatings and paints
Corrosion
Electrochemical impedance spectroscopy
Lanthanum
Tannins
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/94935
Acceder
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network_name_str SEDICI (UNLP)
spelling Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protectionD'Alessandro, OrianaSelmi, GonzaloDeyá, Marta CeciliaDi Sarli, Alejandro RamónRomagnoli, RobertoIngeniería QuímicaCoatings and paintsCorrosionElectrochemical impedance spectroscopyLanthanumTanninsTannins are polyphenols synthesized by plants and useful for the coating industry as corrosion inhibitors. In addition, lanthanum salts have a great inhibitory effect on steel corrosion. The aim of this study was to obtain lanthanum ‘‘tannate’’ with adequate solubility to be incorporated as the corrosion inhibitor in a wash-primer. The ‘‘tannate’’ was obtained from commercial ‘‘Quebracho’’ tannin and 0.1 M La(NO3)3. The soluble tannin was determined by the Folin–Denis reagent, while the concentration of Lanthanum was obtained by a gravimetric procedure. The protective action of ‘‘tannate’’ on SAE 1010 steel was evaluated by linear polarization curves and corrosion potential measurements. Lanthanum ‘‘tannate’’ was incorporated in a wash-primer formulation and tested by corrosion potential and ionic resistance measurements. The corrosion rate was also determined by the polarization resistance technique. Besides, the primer was incorporated in an alkyd paint system and its anticorrosion performance assessed in the salt spray cabinet and by electrochemical impedance spectroscopy. Results showed that lanthanum ‘‘tannate’’ primer inhibits the development of deleterious iron oxyhydroxides on the steel substrate and incorporated into a paint system had a similar behavior to the primer formulated with zinc tetroxychromate.Centro de Investigación y Desarrollo en Tecnología de Pinturas2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf687-704http://sedici.unlp.edu.ar/handle/10915/94935enginfo:eu-repo/semantics/altIdentifier/issn/1059-9495info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-017-3103-yinfo:eu-repo/semantics/altIdentifier/hdl/11336/87631info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:19:47Zoai:sedici.unlp.edu.ar:10915/94935Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:47.493SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
title Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
spellingShingle Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
D'Alessandro, Oriana
Ingeniería Química
Coatings and paints
Corrosion
Electrochemical impedance spectroscopy
Lanthanum
Tannins
title_short Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
title_full Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
title_fullStr Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
title_full_unstemmed Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
title_sort Formulation and assessment of Wash-Primer containing lanthanum tannate for steel temporary protection
dc.creator.none.fl_str_mv D'Alessandro, Oriana
Selmi, Gonzalo
Deyá, Marta Cecilia
Di Sarli, Alejandro Ramón
Romagnoli, Roberto
author D'Alessandro, Oriana
author_facet D'Alessandro, Oriana
Selmi, Gonzalo
Deyá, Marta Cecilia
Di Sarli, Alejandro Ramón
Romagnoli, Roberto
author_role author
author2 Selmi, Gonzalo
Deyá, Marta Cecilia
Di Sarli, Alejandro Ramón
Romagnoli, Roberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ingeniería Química
Coatings and paints
Corrosion
Electrochemical impedance spectroscopy
Lanthanum
Tannins
topic Ingeniería Química
Coatings and paints
Corrosion
Electrochemical impedance spectroscopy
Lanthanum
Tannins
dc.description.none.fl_txt_mv Tannins are polyphenols synthesized by plants and useful for the coating industry as corrosion inhibitors. In addition, lanthanum salts have a great inhibitory effect on steel corrosion. The aim of this study was to obtain lanthanum ‘‘tannate’’ with adequate solubility to be incorporated as the corrosion inhibitor in a wash-primer. The ‘‘tannate’’ was obtained from commercial ‘‘Quebracho’’ tannin and 0.1 M La(NO3)3. The soluble tannin was determined by the Folin–Denis reagent, while the concentration of Lanthanum was obtained by a gravimetric procedure. The protective action of ‘‘tannate’’ on SAE 1010 steel was evaluated by linear polarization curves and corrosion potential measurements. Lanthanum ‘‘tannate’’ was incorporated in a wash-primer formulation and tested by corrosion potential and ionic resistance measurements. The corrosion rate was also determined by the polarization resistance technique. Besides, the primer was incorporated in an alkyd paint system and its anticorrosion performance assessed in the salt spray cabinet and by electrochemical impedance spectroscopy. Results showed that lanthanum ‘‘tannate’’ primer inhibits the development of deleterious iron oxyhydroxides on the steel substrate and incorporated into a paint system had a similar behavior to the primer formulated with zinc tetroxychromate.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
description Tannins are polyphenols synthesized by plants and useful for the coating industry as corrosion inhibitors. In addition, lanthanum salts have a great inhibitory effect on steel corrosion. The aim of this study was to obtain lanthanum ‘‘tannate’’ with adequate solubility to be incorporated as the corrosion inhibitor in a wash-primer. The ‘‘tannate’’ was obtained from commercial ‘‘Quebracho’’ tannin and 0.1 M La(NO3)3. The soluble tannin was determined by the Folin–Denis reagent, while the concentration of Lanthanum was obtained by a gravimetric procedure. The protective action of ‘‘tannate’’ on SAE 1010 steel was evaluated by linear polarization curves and corrosion potential measurements. Lanthanum ‘‘tannate’’ was incorporated in a wash-primer formulation and tested by corrosion potential and ionic resistance measurements. The corrosion rate was also determined by the polarization resistance technique. Besides, the primer was incorporated in an alkyd paint system and its anticorrosion performance assessed in the salt spray cabinet and by electrochemical impedance spectroscopy. Results showed that lanthanum ‘‘tannate’’ primer inhibits the development of deleterious iron oxyhydroxides on the steel substrate and incorporated into a paint system had a similar behavior to the primer formulated with zinc tetroxychromate.
publishDate 2018
dc.date.none.fl_str_mv 2018
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/10915/94935
url http://sedici.unlp.edu.ar/handle/10915/94935
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1059-9495
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-017-3103-y
info:eu-repo/semantics/altIdentifier/hdl/11336/87631
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
687-704
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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