Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/26218 |
Resumo: | Two different types of carbon nanofibers (CNF) were incorporated in the same polypropylene (PP) matrix by twin-screw extrusion. The electrical characterization of both CNFs / PP composites as a function of volume fraction show different electrical performance: conducting and non-conducting. The objective of this work is to study the rheological behaviour of both composites with the aim of relating it to the electrical behaviour. The results indicate that the rheological behaviours are different, suggesting that rheology differentiates the microstructural variations responsible for the electrical performance. Furthermore, the main rheological parameters were correlated to the electrical conductivity. The results show that G´/ G´´ and G´ are the most sensitive parameters when compared to the onset of electrical percolation. Finally, in spite of the intrinsic measuring differences between electrical and rheological analysis, the two calculated thresholds are very similar: ~ 0.5 for the rheological and ~ 0.4 for the electrical. |
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Rheological and electrical analysis in carbon nanofibre reinforced polypropylene compositesPolypropyleneCarbon nanofibersElectrical conductivityRheologicalrheological parameterspercolationnanocompositesrheologyconductive networkextrusionScience & TechnologyTwo different types of carbon nanofibers (CNF) were incorporated in the same polypropylene (PP) matrix by twin-screw extrusion. The electrical characterization of both CNFs / PP composites as a function of volume fraction show different electrical performance: conducting and non-conducting. The objective of this work is to study the rheological behaviour of both composites with the aim of relating it to the electrical behaviour. The results indicate that the rheological behaviours are different, suggesting that rheology differentiates the microstructural variations responsible for the electrical performance. Furthermore, the main rheological parameters were correlated to the electrical conductivity. The results show that G´/ G´´ and G´ are the most sensitive parameters when compared to the onset of electrical percolation. Finally, in spite of the intrinsic measuring differences between electrical and rheological analysis, the two calculated thresholds are very similar: ~ 0.5 for the rheological and ~ 0.4 for the electrical.Financial support for this work has been provided by Consellería de Educación e Ordenación Universitaria, Xunta de Galicia through grant CN2011/008.WileyUniversidade do MinhoLanceros-Méndez, S.Paleo, A. J.Silva, J.Hattum, F. W. J. vanAres, A. I.2013-022013-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/26218eng1099-048810.1002/polb.23200info: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:RCAAP2023-07-21T12:42:50Zoai:repositorium.sdum.uminho.pt:1822/26218Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:40:10.093124Repositório 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 |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
title |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
spellingShingle |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites Lanceros-Méndez, S. Polypropylene Carbon nanofibers Electrical conductivity Rheological rheological parameters percolation nanocomposites rheology conductive network extrusion Science & Technology |
title_short |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
title_full |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
title_fullStr |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
title_full_unstemmed |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
title_sort |
Rheological and electrical analysis in carbon nanofibre reinforced polypropylene composites |
author |
Lanceros-Méndez, S. |
author_facet |
Lanceros-Méndez, S. Paleo, A. J. Silva, J. Hattum, F. W. J. van Ares, A. I. |
author_role |
author |
author2 |
Paleo, A. J. Silva, J. Hattum, F. W. J. van Ares, A. I. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Lanceros-Méndez, S. Paleo, A. J. Silva, J. Hattum, F. W. J. van Ares, A. I. |
dc.subject.por.fl_str_mv |
Polypropylene Carbon nanofibers Electrical conductivity Rheological rheological parameters percolation nanocomposites rheology conductive network extrusion Science & Technology |
topic |
Polypropylene Carbon nanofibers Electrical conductivity Rheological rheological parameters percolation nanocomposites rheology conductive network extrusion Science & Technology |
description |
Two different types of carbon nanofibers (CNF) were incorporated in the same polypropylene (PP) matrix by twin-screw extrusion. The electrical characterization of both CNFs / PP composites as a function of volume fraction show different electrical performance: conducting and non-conducting. The objective of this work is to study the rheological behaviour of both composites with the aim of relating it to the electrical behaviour. The results indicate that the rheological behaviours are different, suggesting that rheology differentiates the microstructural variations responsible for the electrical performance. Furthermore, the main rheological parameters were correlated to the electrical conductivity. The results show that G´/ G´´ and G´ are the most sensitive parameters when compared to the onset of electrical percolation. Finally, in spite of the intrinsic measuring differences between electrical and rheological analysis, the two calculated thresholds are very similar: ~ 0.5 for the rheological and ~ 0.4 for the electrical. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02 2013-02-01T00:00:00Z |
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/1822/26218 |
url |
http://hdl.handle.net/1822/26218 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1099-0488 10.1002/polb.23200 |
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 |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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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1799132946277335040 |