Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)

Siloxane – poly (methylmethacrylate)-based materials are system s formed by a silicon network, to which chains of poly (methylmethacrylate) are linked by covalent bonds or by physica l interactions. Their stability and adherence allow their appli cation on substrates like tin plate in order to incre...

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Main Authors: Sandra R. Kunst, Gustavo A. Ludwig, Maria R. Vega, Cláudia T. Oliveira, Célia F. Malfatti
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2014-01-01
Series:Dyna
Online Access:http://www.redalyc.org/articulo.oa?id=49632758002
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author Sandra R. Kunst
Gustavo A. Ludwig
Maria R. Vega
Cláudia T. Oliveira
Célia F. Malfatti
author_facet Sandra R. Kunst
Gustavo A. Ludwig
Maria R. Vega
Cláudia T. Oliveira
Célia F. Malfatti
author_sort Sandra R. Kunst
collection DOAJ
description Siloxane – poly (methylmethacrylate)-based materials are system s formed by a silicon network, to which chains of poly (methylmethacrylate) are linked by covalent bonds or by physica l interactions. Their stability and adherence allow their appli cation on substrates like tin plate in order to increase the corrosion re sistance. The aim of this work is to coat tin plate with a hybr id film obtained from a sol consisting of alkoxide precursors: 3 - (trimethoxysi lylpropyl) methacrylate (TMSM) and poly (methyl methacrylate) P MMA. Effect of tetraethoxysilane (TEOS) addition was evaluated. Morp hology was evaluated by SEM and contact angle. Electrochemical behavior was evaluated by open circuit potential (OCP), potenti odynamic polarization and electrochemical impedance spectroscop y (EIS). Results showed that siloxane-PMMA film obtained with a higher a ddition of TEOS had higher thickness. However, intense densific ation caused by TEOS addition promoted crack formation, thereby compr omising the corrosion resistance.
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spelling doaj.art-e7427f56d7f441feb2769b96238d2ea92022-12-22T03:10:36ZengUniversidad Nacional de ColombiaDyna0012-73532014-01-01811881119Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)Sandra R. KunstGustavo A. LudwigMaria R. VegaCláudia T. OliveiraCélia F. MalfattiSiloxane – poly (methylmethacrylate)-based materials are system s formed by a silicon network, to which chains of poly (methylmethacrylate) are linked by covalent bonds or by physica l interactions. Their stability and adherence allow their appli cation on substrates like tin plate in order to increase the corrosion re sistance. The aim of this work is to coat tin plate with a hybr id film obtained from a sol consisting of alkoxide precursors: 3 - (trimethoxysi lylpropyl) methacrylate (TMSM) and poly (methyl methacrylate) P MMA. Effect of tetraethoxysilane (TEOS) addition was evaluated. Morp hology was evaluated by SEM and contact angle. Electrochemical behavior was evaluated by open circuit potential (OCP), potenti odynamic polarization and electrochemical impedance spectroscop y (EIS). Results showed that siloxane-PMMA film obtained with a higher a ddition of TEOS had higher thickness. However, intense densific ation caused by TEOS addition promoted crack formation, thereby compr omising the corrosion resistance.http://www.redalyc.org/articulo.oa?id=49632758002
spellingShingle Sandra R. Kunst
Gustavo A. Ludwig
Maria R. Vega
Cláudia T. Oliveira
Célia F. Malfatti
Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
Dyna
title Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
title_full Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
title_fullStr Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
title_full_unstemmed Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
title_short Corrosion resistance of hybrid films applied on tin plate: Precursor solution acidified with nitric acid (pH=3)
title_sort corrosion resistance of hybrid films applied on tin plate precursor solution acidified with nitric acid ph 3
url http://www.redalyc.org/articulo.oa?id=49632758002
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