Characterization of the cork surface by inverse gas chromatography

Detalhes bibliográficos
Autor(a) principal: Cordeiro, Nereida
Data de Publicação: 1995
Outros Autores: Neto, Carlos Pascoal, Gandini, Alessandro, Belgacem, Mohamed Naceur
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.13/3377
Resumo: Inverse gas chromatography (IGC) at infinite dilution has been used to study the surface properties of cork from Quercus suber. The dispersive component of its surface energy was determined at different temperatures using n -alkanes as probes, and a γDS value of 38 ± 1 mJ · m-2 at 40°C was obtained. The surface acid (A)/base (B) properties were also evaluated by using polar probes and the results indicate that cork has an amphoteric character, with a KA /KB = 1.1. The advantages of IGC, compared with the technique of contact angle measurements in the characterization of the cork surface, are discussed.
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spelling Characterization of the cork surface by inverse gas chromatographyCork surfaceCharacterization of the cork surfaceInverse gas chromatography.Faculdade de Ciências Exatas e da EngenhariaInverse gas chromatography (IGC) at infinite dilution has been used to study the surface properties of cork from Quercus suber. The dispersive component of its surface energy was determined at different temperatures using n -alkanes as probes, and a γDS value of 38 ± 1 mJ · m-2 at 40°C was obtained. The surface acid (A)/base (B) properties were also evaluated by using polar probes and the results indicate that cork has an amphoteric character, with a KA /KB = 1.1. The advantages of IGC, compared with the technique of contact angle measurements in the characterization of the cork surface, are discussed.ElsevierDigitUMaCordeiro, NereidaNeto, Carlos PascoalGandini, AlessandroBelgacem, Mohamed Naceur2021-05-06T12:51:26Z1995-01-01T00:00:00Z1995-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/3377engCordeiro, N., Neto, C. P., Gandini, A., & Belgacem, M. N. (1995). Characterization of the cork surface by inverse gas chromatography. Journal of colloid and interface science, 174(1), 246-249.10.1006/jcis.1995.1387info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T12:56:20Zoai:digituma.uma.pt:10400.13/3377Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:06:25.794608Repositório 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 Characterization of the cork surface by inverse gas chromatography
title Characterization of the cork surface by inverse gas chromatography
spellingShingle Characterization of the cork surface by inverse gas chromatography
Cordeiro, Nereida
Cork surface
Characterization of the cork surface
Inverse gas chromatography
.
Faculdade de Ciências Exatas e da Engenharia
title_short Characterization of the cork surface by inverse gas chromatography
title_full Characterization of the cork surface by inverse gas chromatography
title_fullStr Characterization of the cork surface by inverse gas chromatography
title_full_unstemmed Characterization of the cork surface by inverse gas chromatography
title_sort Characterization of the cork surface by inverse gas chromatography
author Cordeiro, Nereida
author_facet Cordeiro, Nereida
Neto, Carlos Pascoal
Gandini, Alessandro
Belgacem, Mohamed Naceur
author_role author
author2 Neto, Carlos Pascoal
Gandini, Alessandro
Belgacem, Mohamed Naceur
author2_role author
author
author
dc.contributor.none.fl_str_mv DigitUMa
dc.contributor.author.fl_str_mv Cordeiro, Nereida
Neto, Carlos Pascoal
Gandini, Alessandro
Belgacem, Mohamed Naceur
dc.subject.por.fl_str_mv Cork surface
Characterization of the cork surface
Inverse gas chromatography
.
Faculdade de Ciências Exatas e da Engenharia
topic Cork surface
Characterization of the cork surface
Inverse gas chromatography
.
Faculdade de Ciências Exatas e da Engenharia
description Inverse gas chromatography (IGC) at infinite dilution has been used to study the surface properties of cork from Quercus suber. The dispersive component of its surface energy was determined at different temperatures using n -alkanes as probes, and a γDS value of 38 ± 1 mJ · m-2 at 40°C was obtained. The surface acid (A)/base (B) properties were also evaluated by using polar probes and the results indicate that cork has an amphoteric character, with a KA /KB = 1.1. The advantages of IGC, compared with the technique of contact angle measurements in the characterization of the cork surface, are discussed.
publishDate 1995
dc.date.none.fl_str_mv 1995-01-01T00:00:00Z
1995-01-01T00:00:00Z
2021-05-06T12:51:26Z
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://hdl.handle.net/10400.13/3377
url http://hdl.handle.net/10400.13/3377
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Cordeiro, N., Neto, C. P., Gandini, A., & Belgacem, M. N. (1995). Characterization of the cork surface by inverse gas chromatography. Journal of colloid and interface science, 174(1), 246-249.
10.1006/jcis.1995.1387
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv 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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