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dc.contributor.authorGedler, Gabriel
dc.contributor.authorAntunes, Marcelo de Sousa Pais
dc.contributor.authorVelasco Perero, José Ignacio
dc.contributor.authorOzisik, Rahmi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2016-01-14T15:22:44Z
dc.date.available2018-03-01T01:30:17Z
dc.date.issued2016-02
dc.identifier.citationGedler, G., De Sousa Pais, M., Velasco J.I., Ozisik, R. Effects of graphene concentration, relative density and cellular morphology on the thermal conductivity of polycarbonate–graphene nanocomposite foams. "European polymer journal", Febrer 2016, vol. 75, p. 190-199.
dc.identifier.issn0014-3057
dc.identifier.urihttp://hdl.handle.net/2117/81477
dc.description.abstractThe thermal conductivity of polycarbonate–graphene nanocomposite foams was studied as a function of relative density, developed cellular structure and graphene concentration. Two types of supercritical CO2 foaming processes were employed to obtain foams with a wide range of relative densities and cellular morphologies. The thermal conductivity of unfoamed nanocomposites increased in more than two times upon addition of 5 wt% graphene. Foaming led to lowered thermal conductivity values, as low as 0.03 W/(m K), with thermal conductivity being mainly controlled by relative density and in a lower extent by graphene concentration. Higher thermal conductivities were obtained with increasing relative density and cell size, as well as with increasing graphene concentration, especially in those cases where improved graphene dispersion was achieved with foaming. Thermal conductivity values displayed a better fit when using a three-phase model when compared to the two-phase model previously proposed for polymer composite foams.
dc.format.extent10 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials
dc.subject.lcshFoamed materials--Testing
dc.subject.lcshNanocomposites (Materials)
dc.subject.lcshComposite materials--Testing
dc.subject.lcshComposite materials--Thermal properties
dc.subject.otherThermal conductivity
dc.subject.otherPolycarbonate
dc.subject.otherGraphene
dc.subject.otherNanocomposite foams
dc.titleEffects of graphene concentration, relative density and cellular morphology on the thermal conductivity of polycarbonate–graphene nanocomposite foams
dc.typeArticle
dc.subject.lemacNanocompòsits (Materials) -- Propietats tèrmiques
dc.subject.lemacMaterials compostos -- Propietats tèrmiques
dc.subject.lemacMaterials compostos -- Proves
dc.subject.lemacMaterials escumosos -- Proves
dc.contributor.groupUniversitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials
dc.identifier.doi10.1016/j.eurpolymj.2015.12.018
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0014305715300975
dc.rights.accessOpen Access
local.identifier.drac17390751
dc.description.versionPostprint (author's final draft)
local.citation.authorGedler, G.; De Sousa Pais, M.; Velasco, J.I.; Ozisik, R.
local.citation.publicationNameEuropean polymer journal
local.citation.volume75
local.citation.startingPage190
local.citation.endingPage199


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