Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties

Detalhes bibliográficos
Autor(a) principal: Mui, T. S M [UNESP]
Data de Publicação: 2017
Outros Autores: Silva, L. L G [UNESP], Prysiazhnyi, V. [UNESP], Kostov, K. G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.surfcoat.2016.08.024
http://hdl.handle.net/11449/169148
Resumo: This work deals with surface modification of aluminium alloy AA7075 by two types of atmospheric pressure plasma: dielectric barrier discharge (DBD) and atmospheric pressure plasma jet (APPJ) with the purpose to enhance the adhesion of polyurethane coating on the alloy. The surface characterization was performed by using water contact angle, roughness and surface free energy measurements. Quality of the coating was tested according to the adhesion tape test (ASTM D3359) and evaluated by electrochemical techniques. The aluminium alloy showed great improvement of the surface wettability after plasma treatments. While, the adhesion tape test presented excellent results with perfect adhesion, meaning that both plasma treatments were efficient in improving the adhesion of the polyurethane coating to the AA7075. The Fourier Transform Infrared Spectroscopy (FTIR) results demonstrated that the plasma treatment cleaned the Al alloy surface by removing hydrocarbon contaminations. Both polarization curves and Electrochemical Impedance Spectroscopy (EIS) results showed better characteristics of corrosion resistance for polyurethane-coated AA7075 than untreated coated samples.
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spelling Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion propertiesAA7075Aluminium alloyAPPJDBDPlasmaSurface treatmentThis work deals with surface modification of aluminium alloy AA7075 by two types of atmospheric pressure plasma: dielectric barrier discharge (DBD) and atmospheric pressure plasma jet (APPJ) with the purpose to enhance the adhesion of polyurethane coating on the alloy. The surface characterization was performed by using water contact angle, roughness and surface free energy measurements. Quality of the coating was tested according to the adhesion tape test (ASTM D3359) and evaluated by electrochemical techniques. The aluminium alloy showed great improvement of the surface wettability after plasma treatments. While, the adhesion tape test presented excellent results with perfect adhesion, meaning that both plasma treatments were efficient in improving the adhesion of the polyurethane coating to the AA7075. The Fourier Transform Infrared Spectroscopy (FTIR) results demonstrated that the plasma treatment cleaned the Al alloy surface by removing hydrocarbon contaminations. Both polarization curves and Electrochemical Impedance Spectroscopy (EIS) results showed better characteristics of corrosion resistance for polyurethane-coated AA7075 than untreated coated samples.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Faculty of Engineering – FEG Universidade Estadual Paulista – UNESPTechnological Faculty of Pindamonhangaba – FATECFaculty of Engineering – FEG Universidade Estadual Paulista – UNESPUniversidade Estadual Paulista (Unesp)Technological Faculty of Pindamonhangaba – FATECMui, T. S M [UNESP]Silva, L. L G [UNESP]Prysiazhnyi, V. [UNESP]Kostov, K. G. [UNESP]2018-12-11T16:44:40Z2018-12-11T16:44:40Z2017-02-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article32-36application/pdfhttp://dx.doi.org/10.1016/j.surfcoat.2016.08.024Surface and Coatings Technology, v. 312, p. 32-36.0257-8972http://hdl.handle.net/11449/16914810.1016/j.surfcoat.2016.08.0242-s2.0-849956782592-s2.0-84995678259.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSurface and Coatings Technology0,928info:eu-repo/semantics/openAccess2024-01-08T06:24:39Zoai:repositorio.unesp.br:11449/169148Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:25:34.950426Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
title Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
spellingShingle Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
Mui, T. S M [UNESP]
AA7075
Aluminium alloy
APPJ
DBD
Plasma
Surface treatment
title_short Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
title_full Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
title_fullStr Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
title_full_unstemmed Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
title_sort Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties
author Mui, T. S M [UNESP]
author_facet Mui, T. S M [UNESP]
Silva, L. L G [UNESP]
Prysiazhnyi, V. [UNESP]
Kostov, K. G. [UNESP]
author_role author
author2 Silva, L. L G [UNESP]
Prysiazhnyi, V. [UNESP]
Kostov, K. G. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Technological Faculty of Pindamonhangaba – FATEC
dc.contributor.author.fl_str_mv Mui, T. S M [UNESP]
Silva, L. L G [UNESP]
Prysiazhnyi, V. [UNESP]
Kostov, K. G. [UNESP]
dc.subject.por.fl_str_mv AA7075
Aluminium alloy
APPJ
DBD
Plasma
Surface treatment
topic AA7075
Aluminium alloy
APPJ
DBD
Plasma
Surface treatment
description This work deals with surface modification of aluminium alloy AA7075 by two types of atmospheric pressure plasma: dielectric barrier discharge (DBD) and atmospheric pressure plasma jet (APPJ) with the purpose to enhance the adhesion of polyurethane coating on the alloy. The surface characterization was performed by using water contact angle, roughness and surface free energy measurements. Quality of the coating was tested according to the adhesion tape test (ASTM D3359) and evaluated by electrochemical techniques. The aluminium alloy showed great improvement of the surface wettability after plasma treatments. While, the adhesion tape test presented excellent results with perfect adhesion, meaning that both plasma treatments were efficient in improving the adhesion of the polyurethane coating to the AA7075. The Fourier Transform Infrared Spectroscopy (FTIR) results demonstrated that the plasma treatment cleaned the Al alloy surface by removing hydrocarbon contaminations. Both polarization curves and Electrochemical Impedance Spectroscopy (EIS) results showed better characteristics of corrosion resistance for polyurethane-coated AA7075 than untreated coated samples.
publishDate 2017
dc.date.none.fl_str_mv 2017-02-25
2018-12-11T16:44:40Z
2018-12-11T16:44:40Z
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.surfcoat.2016.08.024
Surface and Coatings Technology, v. 312, p. 32-36.
0257-8972
http://hdl.handle.net/11449/169148
10.1016/j.surfcoat.2016.08.024
2-s2.0-84995678259
2-s2.0-84995678259.pdf
url http://dx.doi.org/10.1016/j.surfcoat.2016.08.024
http://hdl.handle.net/11449/169148
identifier_str_mv Surface and Coatings Technology, v. 312, p. 32-36.
0257-8972
10.1016/j.surfcoat.2016.08.024
2-s2.0-84995678259
2-s2.0-84995678259.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Surface and Coatings Technology
0,928
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 32-36
application/pdf
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_ 1808129426231132160

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