Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations

Detalhes bibliográficos
Autor(a) principal: Munot,H.
Data de Publicação: 2018
Outros Autores: Deshpande,P., Modhera,C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005
Resumo: Conducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution.
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spelling Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigationscorrosioncarbonated concrete pore solutionrebarconducting polypyrroleConducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution.Sociedade Portuguesa de Electroquímica2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005Portugaliae Electrochimica Acta v.36 n.5 2018reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005Munot,H.Deshpande,P.Modhera,C.info:eu-repo/semantics/openAccess2024-02-06T17:07:27Zoai:scielo:S0872-19042018000500005Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:23.616552Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
title Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
spellingShingle Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
Munot,H.
corrosion
carbonated concrete pore solution
rebar
conducting polypyrrole
title_short Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
title_full Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
title_fullStr Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
title_full_unstemmed Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
title_sort Conducting Polypyrrole Coated Rebar in a Carbonated Concrete Pore Solution: Electrochemical Investigations
author Munot,H.
author_facet Munot,H.
Deshpande,P.
Modhera,C.
author_role author
author2 Deshpande,P.
Modhera,C.
author2_role author
author
dc.contributor.author.fl_str_mv Munot,H.
Deshpande,P.
Modhera,C.
dc.subject.por.fl_str_mv corrosion
carbonated concrete pore solution
rebar
conducting polypyrrole
topic corrosion
carbonated concrete pore solution
rebar
conducting polypyrrole
description Conducting polypyrrole was synthesized, and applied with a paint coating on a low carbon steel sample. By using linear polarization technique, the corrosion rates of uncoated and painted low carbon steel samples, in 3.5 wt% NaCl, were determined, and found to be 5 mpy and 0.1 mpy, respectively. The uncoated and conducting polypyrrole coated steel samples were immersed in a simulated carbonated concrete pore solution, and electrochemical studies were carried out. The shift of corrosion potential in the positive direction implies that the polypyrrole coating gives corrosion protection to low carbon steel, in the anodic direction. As compared to uncoated low carbon samples, polypyrrole coated low carbon steel samples exhibited higher impedance values, but their corrosion resistance decreased with increasing chloride ions in a carbonated pore solution.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-01
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dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000500005
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dc.language.iso.fl_str_mv eng
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dc.publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.36 n.5 2018
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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