Behavior of two eco-compatible duplex systems used in the construction industry against corrosion
- Autores
- Seré, Pablo Ricardo; Deyá, Marta Cecilia; Elsner, Cecilia Inés; Di Sarli, Alejandro Ramón
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Two types of coated steels are currently competing in the construction industry: the hot-dip galvanized steel (HDGS) and the 55%Al–Zn alloy coated steel (HDZAS). Both systems are typically coated by a chromate-based conversion film, which is dangerous for human health and environment. Furthermore, for aesthetics purposes and/or to prolong their expected or planned service life, they are painted designing each paint system as a function of the service conditions to which they will be subject to. The present work reports on a comparative study of two duplex systems: steel/metal coating/organic coating. In both cases, the chromate-based pretreatment was replaced by another one that features γmercaptopropyltrimethoxysilane (MTMO) as an active element. The organic coating used was a waterbased polyurethane. Behavior of this paint against corrosionwas assessed byexposing the samples in salt spray or humidity chambers, and monitoring its evolution by electrochemical impedance spectroscopy, visual observation, scanning electron microscopy and energy dispersive X-ray analysis. The results revealed that: MTMO was suitable for promoting adhesion both in HDGS and HDZAS; in humidity chamber, both duplex systems provided good protection; the presence of corrosion products of the base steel and paint blistering was detected in the HDGS/paint system seventy-two days after exposure; however,150 days after that, none of these effects were observed in the HDZAS/paint system; differences in behavior were significant in Salt spray chamber: speed of paint delamination from the mark done and the bulk of corrosion products generated was much higher in HDGS/paint system than in HDZAS/paint.
Centro de Investigación y Desarrollo en Tecnología de Pinturas - Materia
-
Ingeniería Química
Galvanized
Silane
Protection
Corrosion
Organic coating
Duplex system - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/94516
Ver los metadatos del registro completo
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Behavior of two eco-compatible duplex systems used in the construction industry against corrosionSeré, Pablo RicardoDeyá, Marta CeciliaElsner, Cecilia InésDi Sarli, Alejandro RamónIngeniería QuímicaGalvanizedSilaneProtectionCorrosionOrganic coatingDuplex systemTwo types of coated steels are currently competing in the construction industry: the hot-dip galvanized steel (HDGS) and the 55%Al–Zn alloy coated steel (HDZAS). Both systems are typically coated by a chromate-based conversion film, which is dangerous for human health and environment. Furthermore, for aesthetics purposes and/or to prolong their expected or planned service life, they are painted designing each paint system as a function of the service conditions to which they will be subject to. The present work reports on a comparative study of two duplex systems: steel/metal coating/organic coating. In both cases, the chromate-based pretreatment was replaced by another one that features γmercaptopropyltrimethoxysilane (MTMO) as an active element. The organic coating used was a waterbased polyurethane. Behavior of this paint against corrosionwas assessed byexposing the samples in salt spray or humidity chambers, and monitoring its evolution by electrochemical impedance spectroscopy, visual observation, scanning electron microscopy and energy dispersive X-ray analysis. The results revealed that: MTMO was suitable for promoting adhesion both in HDGS and HDZAS; in humidity chamber, both duplex systems provided good protection; the presence of corrosion products of the base steel and paint blistering was detected in the HDGS/paint system seventy-two days after exposure; however,150 days after that, none of these effects were observed in the HDZAS/paint system; differences in behavior were significant in Salt spray chamber: speed of paint delamination from the mark done and the bulk of corrosion products generated was much higher in HDGS/paint system than in HDZAS/paint.Centro de Investigación y Desarrollo en Tecnología de Pinturas2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/94516enginfo:eu-repo/semantics/altIdentifier/issn/0143-7496info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2013.12.019info: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:UNLP2025-09-29T11:19:37Zoai:sedici.unlp.edu.ar:10915/94516Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:37.725SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
title |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
spellingShingle |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion Seré, Pablo Ricardo Ingeniería Química Galvanized Silane Protection Corrosion Organic coating Duplex system |
title_short |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
title_full |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
title_fullStr |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
title_full_unstemmed |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
title_sort |
Behavior of two eco-compatible duplex systems used in the construction industry against corrosion |
dc.creator.none.fl_str_mv |
Seré, Pablo Ricardo Deyá, Marta Cecilia Elsner, Cecilia Inés Di Sarli, Alejandro Ramón |
author |
Seré, Pablo Ricardo |
author_facet |
Seré, Pablo Ricardo Deyá, Marta Cecilia Elsner, Cecilia Inés Di Sarli, Alejandro Ramón |
author_role |
author |
author2 |
Deyá, Marta Cecilia Elsner, Cecilia Inés Di Sarli, Alejandro Ramón |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ingeniería Química Galvanized Silane Protection Corrosion Organic coating Duplex system |
topic |
Ingeniería Química Galvanized Silane Protection Corrosion Organic coating Duplex system |
dc.description.none.fl_txt_mv |
Two types of coated steels are currently competing in the construction industry: the hot-dip galvanized steel (HDGS) and the 55%Al–Zn alloy coated steel (HDZAS). Both systems are typically coated by a chromate-based conversion film, which is dangerous for human health and environment. Furthermore, for aesthetics purposes and/or to prolong their expected or planned service life, they are painted designing each paint system as a function of the service conditions to which they will be subject to. The present work reports on a comparative study of two duplex systems: steel/metal coating/organic coating. In both cases, the chromate-based pretreatment was replaced by another one that features γmercaptopropyltrimethoxysilane (MTMO) as an active element. The organic coating used was a waterbased polyurethane. Behavior of this paint against corrosionwas assessed byexposing the samples in salt spray or humidity chambers, and monitoring its evolution by electrochemical impedance spectroscopy, visual observation, scanning electron microscopy and energy dispersive X-ray analysis. The results revealed that: MTMO was suitable for promoting adhesion both in HDGS and HDZAS; in humidity chamber, both duplex systems provided good protection; the presence of corrosion products of the base steel and paint blistering was detected in the HDGS/paint system seventy-two days after exposure; however,150 days after that, none of these effects were observed in the HDZAS/paint system; differences in behavior were significant in Salt spray chamber: speed of paint delamination from the mark done and the bulk of corrosion products generated was much higher in HDGS/paint system than in HDZAS/paint. Centro de Investigación y Desarrollo en Tecnología de Pinturas |
description |
Two types of coated steels are currently competing in the construction industry: the hot-dip galvanized steel (HDGS) and the 55%Al–Zn alloy coated steel (HDZAS). Both systems are typically coated by a chromate-based conversion film, which is dangerous for human health and environment. Furthermore, for aesthetics purposes and/or to prolong their expected or planned service life, they are painted designing each paint system as a function of the service conditions to which they will be subject to. The present work reports on a comparative study of two duplex systems: steel/metal coating/organic coating. In both cases, the chromate-based pretreatment was replaced by another one that features γmercaptopropyltrimethoxysilane (MTMO) as an active element. The organic coating used was a waterbased polyurethane. Behavior of this paint against corrosionwas assessed byexposing the samples in salt spray or humidity chambers, and monitoring its evolution by electrochemical impedance spectroscopy, visual observation, scanning electron microscopy and energy dispersive X-ray analysis. The results revealed that: MTMO was suitable for promoting adhesion both in HDGS and HDZAS; in humidity chamber, both duplex systems provided good protection; the presence of corrosion products of the base steel and paint blistering was detected in the HDGS/paint system seventy-two days after exposure; however,150 days after that, none of these effects were observed in the HDZAS/paint system; differences in behavior were significant in Salt spray chamber: speed of paint delamination from the mark done and the bulk of corrosion products generated was much higher in HDGS/paint system than in HDZAS/paint. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
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 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/94516 |
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http://sedici.unlp.edu.ar/handle/10915/94516 |
dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0143-7496 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2013.12.019 |
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