Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200

Detalhes bibliográficos
Autor(a) principal: Nardeli, Jéssica V. [UNESP]
Data de Publicação: 2020
Outros Autores: Fugivara, Cecílio S. [UNESP], Taryba, Maryna, Montemor, M. F., Benedetti, Assis V. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.corsci.2020.108984
http://hdl.handle.net/11449/202085
Resumo: Biobased polyurethane coatings derived from vegetable oils, with 2 different compositions, were prepared and applied on the AA1200 aluminum alloy to confer corrosion protection. The influence of the ratio between the polyester (flexible segment) and the prepolymer (rigid segment) was investigated. Infrared spectroscopy studies evidenced the difference between the areas of the bands (–NH) and optical and scanning electron microscopy evidenced the morphological features of the coating surface before and after immersion in aggressive medium. The barrier properties and anti-corrosion performance of the coatings were evaluated by electrochemical impedance spectroscopy and the results revealed an increase of impedance over the immersion time. Localized corrosion studies confirmed the self-healing effect in coatings formulated with the highest content of polyester.
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spelling Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200Aluminum alloyBiobased coatingsCorrosion protectionLEISSelf-healingSVET/pH micro-potentiometryBiobased polyurethane coatings derived from vegetable oils, with 2 different compositions, were prepared and applied on the AA1200 aluminum alloy to confer corrosion protection. The influence of the ratio between the polyester (flexible segment) and the prepolymer (rigid segment) was investigated. Infrared spectroscopy studies evidenced the difference between the areas of the bands (–NH) and optical and scanning electron microscopy evidenced the morphological features of the coating surface before and after immersion in aggressive medium. The barrier properties and anti-corrosion performance of the coatings were evaluated by electrochemical impedance spectroscopy and the results revealed an increase of impedance over the immersion time. Localized corrosion studies confirmed the self-healing effect in coatings formulated with the highest content of polyester.Universidade Estadual Paulista-UNESP Instituto de QuímicaCentro de Química Estrutural CQE Departamento de Engenharia Química DEQ Instituto Superior Técnico Universidade de Lisboa, Av. Rovisco PaisUniversidade Estadual Paulista-UNESP Instituto de QuímicaUniversidade Estadual Paulista (Unesp)Universidade de LisboaNardeli, Jéssica V. [UNESP]Fugivara, Cecílio S. [UNESP]Taryba, MarynaMontemor, M. F.Benedetti, Assis V. [UNESP]2020-12-12T02:49:27Z2020-12-12T02:49:27Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.corsci.2020.108984Corrosion Science, v. 177.0010-938Xhttp://hdl.handle.net/11449/20208510.1016/j.corsci.2020.1089842-s2.0-85090599148Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCorrosion Scienceinfo:eu-repo/semantics/openAccess2021-10-23T05:25:45Zoai:repositorio.unesp.br:11449/202085Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:18:50.028231Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
title Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
spellingShingle Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
Nardeli, Jéssica V. [UNESP]
Aluminum alloy
Biobased coatings
Corrosion protection
LEIS
Self-healing
SVET/pH micro-potentiometry
title_short Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
title_full Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
title_fullStr Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
title_full_unstemmed Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
title_sort Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200
author Nardeli, Jéssica V. [UNESP]
author_facet Nardeli, Jéssica V. [UNESP]
Fugivara, Cecílio S. [UNESP]
Taryba, Maryna
Montemor, M. F.
Benedetti, Assis V. [UNESP]
author_role author
author2 Fugivara, Cecílio S. [UNESP]
Taryba, Maryna
Montemor, M. F.
Benedetti, Assis V. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de Lisboa
dc.contributor.author.fl_str_mv Nardeli, Jéssica V. [UNESP]
Fugivara, Cecílio S. [UNESP]
Taryba, Maryna
Montemor, M. F.
Benedetti, Assis V. [UNESP]
dc.subject.por.fl_str_mv Aluminum alloy
Biobased coatings
Corrosion protection
LEIS
Self-healing
SVET/pH micro-potentiometry
topic Aluminum alloy
Biobased coatings
Corrosion protection
LEIS
Self-healing
SVET/pH micro-potentiometry
description Biobased polyurethane coatings derived from vegetable oils, with 2 different compositions, were prepared and applied on the AA1200 aluminum alloy to confer corrosion protection. The influence of the ratio between the polyester (flexible segment) and the prepolymer (rigid segment) was investigated. Infrared spectroscopy studies evidenced the difference between the areas of the bands (–NH) and optical and scanning electron microscopy evidenced the morphological features of the coating surface before and after immersion in aggressive medium. The barrier properties and anti-corrosion performance of the coatings were evaluated by electrochemical impedance spectroscopy and the results revealed an increase of impedance over the immersion time. Localized corrosion studies confirmed the self-healing effect in coatings formulated with the highest content of polyester.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T02:49:27Z
2020-12-12T02:49:27Z
2020-12-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.corsci.2020.108984
Corrosion Science, v. 177.
0010-938X
http://hdl.handle.net/11449/202085
10.1016/j.corsci.2020.108984
2-s2.0-85090599148
url http://dx.doi.org/10.1016/j.corsci.2020.108984
http://hdl.handle.net/11449/202085
identifier_str_mv Corrosion Science, v. 177.
0010-938X
10.1016/j.corsci.2020.108984
2-s2.0-85090599148
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Corrosion Science
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128345848676352

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