Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel

Detalhes bibliográficos
Autor(a) principal: Borsoi, Cleide
Data de Publicação: 2018
Outros Autores: Scienza, Lisete Cristine, Zattera, Ademir José, Ferreira, Carlos Arthur
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/231514
Resumo: Polymeric coatings may act as a physical barrier between the aggressive ions and the metal substrate. However, prolonged exposure may cause damage to the polymer coating, leading to a continuous reduction of the barrier effect and consequently loss of the corrosion protection. The objective of this study is to determine the effect of aminopropyltriethoxysilane (APS), cellulose and polyaniline emeraldine-salt (PAni ES) in an epoxy coating on the corrosion protection of mild steel. Microcrystalline cellulose (MCC) and cellulose nanowhiskers (CNW) functionalized or not with PAni ES were used and compared. The coating properties were investigated by electrochemical impedance spectroscopy (EIS), salt spray test and scanning electron microscopy (SEM). The surface of the carbon steel, after 1000 h of exposure, did not present evidence of superficial corrosion. Polymer coatings using CNW and PAni ES showed improved corrosion protection properties even after 90 days of immersion in 3.5 wt% NaCl solution. The greatest increase in the corrosion resistance of the coating was found by EIS for the epoxy coating reinforced with CNW functionalized with PAni ES, revealing a synergistic effect of the electroactivity of a conducting polymer and nanosized cellulose particles.
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spelling Borsoi, CleideScienza, Lisete CristineZattera, Ademir JoséFerreira, Carlos Arthur2021-11-04T04:23:54Z20181516-1439http://hdl.handle.net/10183/231514001132262Polymeric coatings may act as a physical barrier between the aggressive ions and the metal substrate. However, prolonged exposure may cause damage to the polymer coating, leading to a continuous reduction of the barrier effect and consequently loss of the corrosion protection. The objective of this study is to determine the effect of aminopropyltriethoxysilane (APS), cellulose and polyaniline emeraldine-salt (PAni ES) in an epoxy coating on the corrosion protection of mild steel. Microcrystalline cellulose (MCC) and cellulose nanowhiskers (CNW) functionalized or not with PAni ES were used and compared. The coating properties were investigated by electrochemical impedance spectroscopy (EIS), salt spray test and scanning electron microscopy (SEM). The surface of the carbon steel, after 1000 h of exposure, did not present evidence of superficial corrosion. Polymer coatings using CNW and PAni ES showed improved corrosion protection properties even after 90 days of immersion in 3.5 wt% NaCl solution. The greatest increase in the corrosion resistance of the coating was found by EIS for the epoxy coating reinforced with CNW functionalized with PAni ES, revealing a synergistic effect of the electroactivity of a conducting polymer and nanosized cellulose particles.application/pdfengMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 21, n. 6 (2018), e20170269, 10 p.Celulose microcristalinaNanofibras de celuloseRevestimento poliméricoProteção contra corrosãoCellulose nanowhiskersMicrocrystalline cellulosePolyanilinePolymeric coatingsElectrochemical impedance spectroscopyEffect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steelinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001132262.pdf.txt001132262.pdf.txtExtracted Texttext/plain38588http://www.lume.ufrgs.br/bitstream/10183/231514/2/001132262.pdf.txt71d38d0659954b41a359c2dc750ad36cMD52ORIGINAL001132262.pdfTexto completo (inglês)application/pdf5359610http://www.lume.ufrgs.br/bitstream/10183/231514/1/001132262.pdf71e40c3e99131b532d629730831bd671MD5110183/2315142021-11-20 05:49:14.994781oai:www.lume.ufrgs.br:10183/231514Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T07:49:14Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
title Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
spellingShingle Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
Borsoi, Cleide
Celulose microcristalina
Nanofibras de celulose
Revestimento polimérico
Proteção contra corrosão
Cellulose nanowhiskers
Microcrystalline cellulose
Polyaniline
Polymeric coatings
Electrochemical impedance spectroscopy
title_short Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
title_full Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
title_fullStr Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
title_full_unstemmed Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
title_sort Effect of the incorporation of micro and nanocellulose particles on the anticorrosive properties of epoxy coatings applied on carbon steel
author Borsoi, Cleide
author_facet Borsoi, Cleide
Scienza, Lisete Cristine
Zattera, Ademir José
Ferreira, Carlos Arthur
author_role author
author2 Scienza, Lisete Cristine
Zattera, Ademir José
Ferreira, Carlos Arthur
author2_role author
author
author
dc.contributor.author.fl_str_mv Borsoi, Cleide
Scienza, Lisete Cristine
Zattera, Ademir José
Ferreira, Carlos Arthur
dc.subject.por.fl_str_mv Celulose microcristalina
Nanofibras de celulose
Revestimento polimérico
Proteção contra corrosão
topic Celulose microcristalina
Nanofibras de celulose
Revestimento polimérico
Proteção contra corrosão
Cellulose nanowhiskers
Microcrystalline cellulose
Polyaniline
Polymeric coatings
Electrochemical impedance spectroscopy
dc.subject.eng.fl_str_mv Cellulose nanowhiskers
Microcrystalline cellulose
Polyaniline
Polymeric coatings
Electrochemical impedance spectroscopy
description Polymeric coatings may act as a physical barrier between the aggressive ions and the metal substrate. However, prolonged exposure may cause damage to the polymer coating, leading to a continuous reduction of the barrier effect and consequently loss of the corrosion protection. The objective of this study is to determine the effect of aminopropyltriethoxysilane (APS), cellulose and polyaniline emeraldine-salt (PAni ES) in an epoxy coating on the corrosion protection of mild steel. Microcrystalline cellulose (MCC) and cellulose nanowhiskers (CNW) functionalized or not with PAni ES were used and compared. The coating properties were investigated by electrochemical impedance spectroscopy (EIS), salt spray test and scanning electron microscopy (SEM). The surface of the carbon steel, after 1000 h of exposure, did not present evidence of superficial corrosion. Polymer coatings using CNW and PAni ES showed improved corrosion protection properties even after 90 days of immersion in 3.5 wt% NaCl solution. The greatest increase in the corrosion resistance of the coating was found by EIS for the epoxy coating reinforced with CNW functionalized with PAni ES, revealing a synergistic effect of the electroactivity of a conducting polymer and nanosized cellulose particles.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2021-11-04T04:23:54Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/231514
dc.identifier.issn.pt_BR.fl_str_mv 1516-1439
dc.identifier.nrb.pt_BR.fl_str_mv 001132262
identifier_str_mv 1516-1439
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url http://hdl.handle.net/10183/231514
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 21, n. 6 (2018), e20170269, 10 p.
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