Preparation and characterization of silanes films to protect electrogalvanized steel

Silanes are an interesting alternative to chromate-based surface treatments for temporary protection of electrogalvanized steel. In this work, the protective behavior of 3-mercaptopropyltrimethoxysilane (MTMO), 3-aminopropyltriethoxysilane (AMEO), or 3-glycidoxypropyltrimethoxysilane (GLYMO) films ap...

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Autores principales: Seré, Pablo Ricardo, Egli, Walter Alfredo, Di Sarli, Alejandro Ramón, Deyá, Marta Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ingeniería Química
Protective films
Electrogalvanized
Silane
Surface treatment
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95576
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-95576
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Protective films
Electrogalvanized
Silane
Surface treatment
spellingShingle Ingeniería Química
Protective films
Electrogalvanized
Silane
Surface treatment
Seré, Pablo Ricardo
Egli, Walter Alfredo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
Preparation and characterization of silanes films to protect electrogalvanized steel
topic_facet Ingeniería Química
Protective films
Electrogalvanized
Silane
Surface treatment
description Silanes are an interesting alternative to chromate-based surface treatments for temporary protection of electrogalvanized steel. In this work, the protective behavior of 3-mercaptopropyltrimethoxysilane (MTMO), 3-aminopropyltriethoxysilane (AMEO), or 3-glycidoxypropyltrimethoxysilane (GLYMO) films applied on electrogalvanized automotive quality steel sheets has been studied. The silane coating morphology, composition, and porosity were characterized by scanning electron microscopy (SEM), energydispersive x-ray spectroscopy (EDS), x-ray fluorescence, immersion in copper sulfate, and cyclic voltammetry. The corrosion protection was evaluated by polarization curves, electrochemical noise measurements, electrochemical impedance spectrometry, and accelerated humidity chamber tests. The results showed that the silanes protect temporarily electrogalvanized steel from corrosion. MTMO forms a relatively thick and cracked film. AMEO and GLYMO films were so thin that they could not be observed by SEM but silicon was detected by EDS. MTMO provided good temporary protection, being an alternative to replace Cr(VI) as protector of electrogalvanized steel.
format Articulo
Articulo
author Seré, Pablo Ricardo
Egli, Walter Alfredo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_facet Seré, Pablo Ricardo
Egli, Walter Alfredo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_sort Seré, Pablo Ricardo
title Preparation and characterization of silanes films to protect electrogalvanized steel
title_short Preparation and characterization of silanes films to protect electrogalvanized steel
title_full Preparation and characterization of silanes films to protect electrogalvanized steel
title_fullStr Preparation and characterization of silanes films to protect electrogalvanized steel
title_full_unstemmed Preparation and characterization of silanes films to protect electrogalvanized steel
title_sort preparation and characterization of silanes films to protect electrogalvanized steel
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/95576
work_keys_str_mv AT serepabloricardo preparationandcharacterizationofsilanesfilmstoprotectelectrogalvanizedsteel
AT egliwalteralfredo preparationandcharacterizationofsilanesfilmstoprotectelectrogalvanizedsteel
AT disarlialejandroramon preparationandcharacterizationofsilanesfilmstoprotectelectrogalvanizedsteel
AT deyamartacecilia preparationandcharacterizationofsilanesfilmstoprotectelectrogalvanizedsteel
bdutipo_str Repositorios
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