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Electrical conduction behavior of high-performance microcellular nanocomposites made of graphene nanoplatelet-filled polysulfone
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. Doctorat en Ciència i Enginyeria dels Materials |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials |
dc.date.accessioned | 2021-01-15T14:07:23Z |
dc.date.available | 2021-01-15T14:07:23Z |
dc.date.issued | 2020-12-04 |
dc.identifier.citation | Abbasi, H.; De Sousa Pais, M.; Velasco J.I. Electrical conduction behavior of high-performance microcellular nanocomposites made of graphene nanoplatelet-filled polysulfone. "Nanomaterials", 4 Desembre 2020, vol. 10, núm. 12, p. 2425:1-2425:12. |
dc.identifier.issn | 2079-4991 |
dc.identifier.uri | http://hdl.handle.net/2117/335406 |
dc.description.abstract | Graphene nanoplatelet (GnP)-filled polysulfone (PSU) cellular nanocomposites, prepared by two different methods—namely, water vapor-induced phase separation (WVIPS) and supercritical CO2 dissolution (scCO2) foaming—were produced with a range of densities from 0.4 to 0.6 g/cm3 and characterized in terms of their structure and electrical conduction behavior. The GnP content was varied from 0 to 10 wt%. The electrical conductivity values were increased with the amount of GnP for the three different studied foam series. The highest values were found for the microcellular nanocomposites prepared by the WVIPS method, reaching as high as 8.17 × 10-2 S/m for 10 wt% GnP. The variation trend of the electrical conductivity for each series was analyzed by applying both the percolation and the tunneling models. Comparatively, the tunneling model showed a better fitting in the prediction of the electrical conductivity. The preparation technique of the cellular nanocomposite affected the resultant cellular structure of the nanocomposite and, as a result, the porosity or gas volume fraction (Vg). A higher porosity resulted in a higher electrical conductivity, with the lightest foams being prepared by the WVIPS method, showing electrical conductivities two orders of magnitude higher than the equivalent foams prepared by the scCO2 dissolution technique |
dc.language.iso | eng |
dc.rights | Attribution 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject.lcsh | Nanocomposites (Materials) |
dc.subject.lcsh | Graphene |
dc.subject.lcsh | Electric conductivity |
dc.subject.other | Cellular nanocomposite |
dc.subject.other | Electrical conductivity |
dc.subject.other | Graphene nanoplatelets |
dc.subject.other | Polysulfone |
dc.title | Electrical conduction behavior of high-performance microcellular nanocomposites made of graphene nanoplatelet-filled polysulfone |
dc.type | Article |
dc.subject.lemac | Nanocompòsits (Materials) |
dc.subject.lemac | Grafè |
dc.subject.lemac | Conductivitat elèctrica |
dc.contributor.group | Universitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials |
dc.identifier.doi | 10.3390/nano10122425 |
dc.relation.publisherversion | https://www.mdpi.com/2079-4991/10/12/2425 |
dc.rights.access | Open Access |
local.identifier.drac | 29979394 |
dc.description.version | Postprint (published version) |
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 | Nanomaterials |
local.citation.volume | 10 |
local.citation.number | 12 |
local.citation.startingPage | 2425:1 |
local.citation.endingPage | 2425:12 |
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