Triplex systems: Accelerated and outdoor tests

The protective paint/galvanized steel system is called duplex and it is claimed that protects steel from corrosion synergistically. The triplex system adds a pretreatment between the paint and the substrate in order to enhance the corrosion protection or paint adhesion. In this work, the behavior ag...

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Autores principales: Seré, Pablo Ricardo, Schvezov, Carlos, Di Sarli, Alejandro Ramón, Deyá, Marta Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ingeniería Química
Accelerated tests
Electrochemical impedance spectroscopy
Electrogalvanized steel
Service conditions
Silane
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98939
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98939
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
Accelerated tests
Electrochemical impedance spectroscopy
Electrogalvanized steel
Service conditions
Silane
spellingShingle Ingeniería Química
Accelerated tests
Electrochemical impedance spectroscopy
Electrogalvanized steel
Service conditions
Silane
Seré, Pablo Ricardo
Schvezov, Carlos
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
Triplex systems: Accelerated and outdoor tests
topic_facet Ingeniería Química
Accelerated tests
Electrochemical impedance spectroscopy
Electrogalvanized steel
Service conditions
Silane
description The protective paint/galvanized steel system is called duplex and it is claimed that protects steel from corrosion synergistically. The triplex system adds a pretreatment between the paint and the substrate in order to enhance the corrosion protection or paint adhesion. In this work, the behavior against the corrosion of electrogalvanized steel pretreated with a commercial silane, mercaptopropyltrimethoxysilane (MTMO) or a chromium(III)-based solution (Cr) was studied. Pretreated samples were painted with an alkyd system and exposed in humidity, prohesion chambers or xenon lamp artificial weathering. Besides, some of them were exposed in outdoor experimental station (Posadas, Misiones Province, Argentina, 27° 22′S and 55° 53′W) for 5 years. The evolution of the different triplex systems was evaluated by visual observation, loss of gloss, color variation, loss of adhesion, and electrochemical impedance spectroscopy. A painted sample without pretreatment was used as control. Subjected to accelerated tests, the highest protective efficiency was obtained in samples pretreated with MTMO or Cr. However, in the outdoor tests the best behavior corresponds to the control samples because the pretreated ones failed due to adhesion problems.
format Articulo
Articulo
author Seré, Pablo Ricardo
Schvezov, Carlos
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_facet Seré, Pablo Ricardo
Schvezov, Carlos
Di Sarli, Alejandro Ramón
Deyá, Marta Cecilia
author_sort Seré, Pablo Ricardo
title Triplex systems: Accelerated and outdoor tests
title_short Triplex systems: Accelerated and outdoor tests
title_full Triplex systems: Accelerated and outdoor tests
title_fullStr Triplex systems: Accelerated and outdoor tests
title_full_unstemmed Triplex systems: Accelerated and outdoor tests
title_sort triplex systems: accelerated and outdoor tests
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/98939
work_keys_str_mv AT serepabloricardo triplexsystemsacceleratedandoutdoortests
AT schvezovcarlos triplexsystemsacceleratedandoutdoortests
AT disarlialejandroramon triplexsystemsacceleratedandoutdoortests
AT deyamartacecilia triplexsystemsacceleratedandoutdoortests
bdutipo_str Repositorios
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