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Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
dc.contributor.author | Abbasi, Hooman |
dc.contributor.author | Antunes, Marcelo de Sousa Pais |
dc.contributor.author | Velasco Perero, José Ignacio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica |
dc.date.accessioned | 2018-10-24T11:08:30Z |
dc.date.available | 2019-09-19T00:26:03Z |
dc.date.issued | 2018-09-19 |
dc.identifier.citation | Abbasi, H., De Sousa Pais, M., V. J. Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion. "Polymer composites", 2019, vol. 40, S2 Special Issue: Graphene and Carbon Fibers, p. E1416-E1425. |
dc.identifier.issn | 0272-8397 |
dc.identifier.uri | http://hdl.handle.net/2117/122919 |
dc.description.abstract | 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 |
dc.format.extent | 10 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject.lcsh | Foam |
dc.subject.lcsh | Nanocomposites (Materials) |
dc.subject.lcsh | Materials--Research |
dc.subject.lcsh | Composite materials |
dc.subject.other | Foams |
dc.subject.other | Nanocomposites |
dc.subject.other | Structure-property relations |
dc.title | Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion |
dc.type | Article |
dc.subject.lemac | Nanocompòsits (Materials) |
dc.subject.lemac | Escumes |
dc.subject.lemac | Materials compostos -- Estructures i propietats |
dc.contributor.group | Universitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials |
dc.identifier.doi | 10.1002/pc.25029 |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/10.1002/pc.25029 |
dc.rights.access | Open Access |
local.identifier.drac | 23428888 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-89787-P/ES/ESPUMAS POLIMERICAS MULTIFUNCIONALES BASADAS EN TERMOPLASTICOS DE ALTA TEMPERATURA/ |
local.citation.author | Abbasi, H.; De Sousa Pais, M.; Velasco, J.I. |
local.citation.publicationName | Polymer composites |
local.citation.volume | 40 |
local.citation.number | S2 Special Issue: Graphene and Carbon Fibers |
local.citation.startingPage | E1416 |
local.citation.endingPage | E1425 |
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