Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion

Significant improvement in electrical conductivity of graphene nanoplatelets-filled polyetherimide (PEI) foams was achieved by simultaneously increasing the porosity and graphene nanoplatelets dispersion. Foams were prepared by means of water vapor-induced phase separation using a concentration of g...

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Detalhes bibliográficos
Autores: Abbasi, Hooman|||0000-0001-5167-4126, Antunes, Marcelo de Sousa Pais|||0000-0001-5911-1969, Velasco Perero, José Ignacio|||0000-0003-0331-5270
Formato: artículo
Fecha de publicación:2018
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/122919
Acesso em linha:https://hdl.handle.net/2117/122919
https://dx.doi.org/10.1002/pc.25029
Access Level:acceso abierto
Palavra-chave:Foam
Nanocomposites (Materials)
Materials--Research
Composite materials
Foams
Nanocomposites
Structure-property relations
Nanocompòsits (Materials)
Escumes
Materials compostos -- Estructures i propietats
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersionAbbasi, Hooman|||0000-0001-5167-4126Antunes, Marcelo de Sousa Pais|||0000-0001-5911-1969Velasco Perero, José Ignacio|||0000-0003-0331-5270FoamNanocomposites (Materials)Materials--ResearchComposite materialsFoamsNanocompositesStructure-property relationsNanocompòsits (Materials)EscumesMaterials compostos -- Estructures i propietatsÀrees temàtiques de la UPC::Enginyeria dels materialsSignificant improvement in electrical conductivity of graphene nanoplatelets-filled polyetherimide (PEI) foams was achieved by simultaneously increasing the porosity and graphene nanoplatelets dispersion. Foams were prepared by means of water vapor-induced phase separation using a concentration of graphene nanoplatelets (GnP) between 1 and 10 wt%. To obtain two sets of foams having different density and porosity, PEI's concentration in N-methyl pyrrolidone (NMP) solvent prior to foaming was set at 15 and 25–30 wt%, respectively. High-power sonication was applied to GnP-NMP suspension before PEI's addition for the foam series with higher porosity (15 wt% PEI). All foams were later characterized in terms of cellular structure, thermal stability, dynamic-mechanical properties, and electrical conductivity. A notable enhancement in electrical conductivity was observed with foaming, especially when increasing the porosity and applying sonication, with foams reaching values as high as 1.7 × 10-1 S/m while maintaining the thermal stability and mechanical performance20182018-09-1920182018-10-24journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/122919https://dx.doi.org/10.1002/pc.25029reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 MAT2017-89787-P ESPUMAS POLIMERICAS MULTIFUNCIONALES BASADAS EN TERMOPLASTICOS DE ALTA TEMPERATURAopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1229192026-05-27T15:37:01Z
dc.title.none.fl_str_mv Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
title Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
spellingShingle Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
Abbasi, Hooman|||0000-0001-5167-4126
Foam
Nanocomposites (Materials)
Materials--Research
Composite materials
Foams
Nanocomposites
Structure-property relations
Nanocompòsits (Materials)
Escumes
Materials compostos -- Estructures i propietats
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
title_full Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
title_fullStr Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
title_full_unstemmed Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
title_sort Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
dc.creator.none.fl_str_mv Abbasi, Hooman|||0000-0001-5167-4126
Antunes, Marcelo de Sousa Pais|||0000-0001-5911-1969
Velasco Perero, José Ignacio|||0000-0003-0331-5270
author Abbasi, Hooman|||0000-0001-5167-4126
author_facet Abbasi, Hooman|||0000-0001-5167-4126
Antunes, Marcelo de Sousa Pais|||0000-0001-5911-1969
Velasco Perero, José Ignacio|||0000-0003-0331-5270
author_role author
author2 Antunes, Marcelo de Sousa Pais|||0000-0001-5911-1969
Velasco Perero, José Ignacio|||0000-0003-0331-5270
author2_role author
author
dc.subject.none.fl_str_mv Foam
Nanocomposites (Materials)
Materials--Research
Composite materials
Foams
Nanocomposites
Structure-property relations
Nanocompòsits (Materials)
Escumes
Materials compostos -- Estructures i propietats
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Foam
Nanocomposites (Materials)
Materials--Research
Composite materials
Foams
Nanocomposites
Structure-property relations
Nanocompòsits (Materials)
Escumes
Materials compostos -- Estructures i propietats
Àrees temàtiques de la UPC::Enginyeria dels materials
description Significant improvement in electrical conductivity of graphene nanoplatelets-filled polyetherimide (PEI) foams was achieved by simultaneously increasing the porosity and graphene nanoplatelets dispersion. Foams were prepared by means of water vapor-induced phase separation using a concentration of graphene nanoplatelets (GnP) between 1 and 10 wt%. To obtain two sets of foams having different density and porosity, PEI's concentration in N-methyl pyrrolidone (NMP) solvent prior to foaming was set at 15 and 25–30 wt%, respectively. High-power sonication was applied to GnP-NMP suspension before PEI's addition for the foam series with higher porosity (15 wt% PEI). All foams were later characterized in terms of cellular structure, thermal stability, dynamic-mechanical properties, and electrical conductivity. A notable enhancement in electrical conductivity was observed with foaming, especially when increasing the porosity and applying sonication, with foams reaching values as high as 1.7 × 10-1 S/m while maintaining the thermal stability and mechanical performance
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-09-19
2018
2018-10-24
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/122919
https://dx.doi.org/10.1002/pc.25029
url https://hdl.handle.net/2117/122919
https://dx.doi.org/10.1002/pc.25029
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 MAT2017-89787-P ESPUMAS POLIMERICAS MULTIFUNCIONALES BASADAS EN TERMOPLASTICOS DE ALTA TEMPERATURA
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405580491227136
score 15,300719

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