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dc.contributor.authorAbbasi, Hooman
dc.contributor.authorAntunes, Marcelo de Sousa Pais
dc.contributor.authorVelasco Perero, José Ignacio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2018-03-23T10:12:36Z
dc.date.available2018-03-23T10:12:36Z
dc.date.issued2018-03-21
dc.identifier.citationAbbasi, H., De Sousa Pais, M., V. J. Effects of carbon nanotubes/graphene nanoplatelets hybrid systems on the structure and properties of polyetherimide-based foams. "Polymers", 21 Març 2018, vol. 10, núm. 4, p. 1-22.
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/2117/115597
dc.description.abstractFoams based on polyetherimide (PEI) with carbon nanotubes (CNT) and PEI with graphene nanoplatelets (GnP) combined with CNT were prepared by water vapor induced phase separation. Prior to foaming, variable amounts of only CNT(0.1–2.0wt%) or a combination of GnP(0.0–2.0 wt %) and CNT (0.0–2.0 wt %) for a total amount of CNT-GnP of 2.0 wt %, were dispersed in a solvent using high power sonication, added to the PEI solution, and intensively mixed. While the addition of increasingly higher amounts of only CNT led to foams with more heterogeneous cellular structures, the incorporation of GnP resulted in foams with ¿ner and more homogeneous cellular structures. GnP in combination with CNT effectively enhanced the thermal stability of foams by delaying thermal decomposition and mechanically-reinforced PEI. The addition of 1.0 wt % GnP in combination with 1.0 wt % CNT resulted in foams with extremely high electrical conductivity, which was related to the formation of an optimum conductive network by physical contact between GnP layers and CNT, enabling their use in electrostatic discharge (ESD) and electromagnetic interference (EMI) shielding applications. The experimental electrical conductivity values of foams containing only CNT ¿tted well to a percolative conduction model, with a percolation threshold of 0.06 vol % (0.1 wt %) CNT
dc.format.extent22 p.
dc.language.isoeng
dc.rightsAttribution 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Indústries químiques::Química tèxtil
dc.subject.lcshNanocomposites (Materials)
dc.subject.lcshGraphene
dc.subject.lcshCarbon nanotubes
dc.subject.lcshNanoparticles
dc.subject.lcshFoamed materials
dc.subject.lcshElectric conductivity
dc.subject.lcshPercolation
dc.subject.lcshUltrasonics
dc.subject.otherNanocomposites
dc.subject.otherGraphene
dc.subject.otherCarbon nanotubes
dc.subject.otherHybrid nanoparticles
dc.subject.otherPolyetherimide foams
dc.subject.otherElectrical conductivity
dc.subject.otherPercolation
dc.subject.otherUltrasonication
dc.titleEffects of carbon nanotubes/graphene nanoplatelets hybrid systems on the structure and properties of polyetherimide-based foams
dc.typeArticle
dc.subject.lemacNanocompòsits (Materials)
dc.subject.lemacGrafè
dc.subject.lemacNanotubs de carboni
dc.subject.lemacNanopartícules
dc.subject.lemacMaterials escumosos
dc.subject.lemacConductivitat elèctrica
dc.subject.lemacUltrasons
dc.contributor.groupUniversitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials
dc.identifier.doi10.3390/polym10040348
dc.relation.publisherversionhttp://www.mdpi.com/2073-4360/10/4/348
dc.rights.accessOpen Access
drac.iddocument22025417
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PE/MAT2014-56213-P
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PE/MAT2017-89787-P
upcommons.citation.authorAbbasi, H., De Sousa Pais, M., Velasco J.I.
upcommons.citation.publishedtrue
upcommons.citation.publicationNamePolymers
upcommons.citation.volume10
upcommons.citation.number4
upcommons.citation.startingPage1
upcommons.citation.endingPage22


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution 3.0 Spain