Silanes as adhesion promoters in waterborne epoxy paints

The aim of this work was to study mercaptopropyltrimethoxysilane (MTMO), aminopropyltrimethoxy silane (AMEO) glycidoxypropyltrimethoxysilane (GLYMO) and glycidoxypropyltriethoxysilane (GLYEO) as adhesion promoters between an epoxy waterborne paint and electrogalvanized steel. The metallic substrate...

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Autores principales: Seré, Pablo Ricardo, Di Sarli, Alejandro Ramón, Deyá, Marta Cecilia
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2018
Materias:
Química
silanes
electrogalvanized steel
adhesion
paint
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120704
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-120704
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
silanes
electrogalvanized steel
adhesion
paint
spellingShingle Química
silanes
electrogalvanized steel
adhesion
paint
Seré, Pablo Ricardo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
Silanes as adhesion promoters in waterborne epoxy paints
topic_facet Química
silanes
electrogalvanized steel
adhesion
paint
description The aim of this work was to study mercaptopropyltrimethoxysilane (MTMO), aminopropyltrimethoxy silane (AMEO) glycidoxypropyltrimethoxysilane (GLYMO) and glycidoxypropyltriethoxysilane (GLYEO) as adhesion promoters between an epoxy waterborne paint and electrogalvanized steel. The metallic substrate was brushed with hot water and detergent, electrochemically cleaned, immersed in the hydrolysed silanes solutions and dried at 110 ºC for 1 h. Finally, the pretreated substrates were paint by brush. The paint used was an epoxy-poliamidoamine whose dried film thickness was 85±15 m. As control a replicate of the substrate without silane pretreatment was used (Z). After curing, the painted samples were exposed in the salt spray or in the humidity chambers. Rusting and blistering degrees, adhesion and failure at the scribe were evaluated along the exposure. The experimental results showed differences among the pretreatments performance, especially in the loss of adhesion and failures at the scribe. The paint on both the GLYEO pretreated and the Z samples lost most of its adhesion after 30 days of exposure in the chambers. For the MTMO pretreated and the Z samples the failure at the scribe started to be important after 30 days in the salt spray chamber, while for the GLYEO pretreated samples it occurred after 60 days in the humidity chamber.
format Objeto de conferencia
Objeto de conferencia
author Seré, Pablo Ricardo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_facet Seré, Pablo Ricardo
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_sort Seré, Pablo Ricardo
title Silanes as adhesion promoters in waterborne epoxy paints
title_short Silanes as adhesion promoters in waterborne epoxy paints
title_full Silanes as adhesion promoters in waterborne epoxy paints
title_fullStr Silanes as adhesion promoters in waterborne epoxy paints
title_full_unstemmed Silanes as adhesion promoters in waterborne epoxy paints
title_sort silanes as adhesion promoters in waterborne epoxy paints
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/120704
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AT disarlialejandroramon silanesasadhesionpromotersinwaterborneepoxypaints
AT deyamartacecilia silanesasadhesionpromotersinwaterborneepoxypaints
bdutipo_str Repositorios
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