Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel

In this paper, the effectiveness of γ-mercaptopropyltrimethoxysilane (MTMO) films as temporary corrosion protection and adhesion promoter on electro-galvanized steel was studied. The films were synthesized from hydrolyzed MTMO with ethanol or methanol, applied by immersion on electro-galvanized stee...

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Autores principales: Seré, Pablo Ricardo, Banera, Mauro Jonathan, Egli, Walter Alfredo, Elsner, Cecilia Inés, Di Sarli, Alejandro Ramón, Deyá, Marta Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
Electro-galvanized steel
Temporary protection
Adhesion
Sol-gel pretreatment
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81954
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81954
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Electro-galvanized steel
Temporary protection
Adhesion
Sol-gel pretreatment
spellingShingle Química
Electro-galvanized steel
Temporary protection
Adhesion
Sol-gel pretreatment
Seré, Pablo Ricardo
Banera, Mauro Jonathan
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
topic_facet Química
Electro-galvanized steel
Temporary protection
Adhesion
Sol-gel pretreatment
description In this paper, the effectiveness of γ-mercaptopropyltrimethoxysilane (MTMO) films as temporary corrosion protection and adhesion promoter on electro-galvanized steel was studied. The films were synthesized from hydrolyzed MTMO with ethanol or methanol, applied by immersion on electro-galvanized steel and cured under different conditions. The porosity of the coating was evaluated by cyclic voltammetry, the corrosion behavior by polarization curves and the protection degree by exposure in the humidity and prohesion chambers. The films were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). From the obtained experimental results, it was concluded that this protection is markedly affected by the coating curing conditions and the alcohol used in the hydrolysis. MTMO is a good temporary protector against electro-galvanized steel corrosion in high humidity environment but it is less effective in environments containing aggressive ions such as Cl− and SO4−2. In a second stage, pretreated samples were coated with an alkyd anticorrosive paint and exposed to the salt spray chamber. Dry adhesion tests as well as SEM and EDS studies were also done in order to know the nature of the disbonding fails (adhesion or cohesion).
format Articulo
Articulo
author Seré, Pablo Ricardo
Banera, Mauro Jonathan
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_facet Seré, Pablo Ricardo
Banera, Mauro Jonathan
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_sort Seré, Pablo Ricardo
title Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
title_short Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
title_full Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
title_fullStr Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
title_full_unstemmed Effect on Temporary Protection and Adhesion Promoter of Silane Nanofilms Applied on Electro-galvanized Steel
title_sort effect on temporary protection and adhesion promoter of silane nanofilms applied on electro-galvanized steel
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/81954
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