The effect of graphene flake size on the properties of graphene-based polymer composite films

dc.contributorAalto Universityen
dc.contributor.authorTarhini, Alien_US
dc.contributor.authorTehrani-Bagha, Alien_US
dc.contributor.authorKazan, Michelen_US
dc.contributor.authorGrady, Brianen_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.organizationAmerican University of Beiruten_US
dc.contributor.organizationUniversity of Oklahomaen_US
dc.description.abstractIn this work, the role of graphene flake size on the properties of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) composites was studied. Graphene flakes were added to PVDF-HFP using a solution mixing and molding process. By increasing graphene particle size and its concentration in the composites, higher electrical conductivity, in-plane thermal conductivity, and elastic modulus were achieved. Maximum tensile strength was obtained for the composites with average graphene flake size of 2, 5, and 7 μm at graphene concentrations of 10 wt%, 5 wt%, and 20 wt%, respectively. Thick flexible composite films (0.2–0.4 mm) with ultra-high in-plane electrical conductivity (~4500 S/m), in-plane thermal conductivity (~26 W/m/K), and tensile strength (~50 MPa) were obtained for the samples containing the graphene flakes with a larger average particle size of 7 μm. To our knowledge, the first two values are larger than any other values reported in the literature for PVDF-based composites.en
dc.description.versionPeer revieweden
dc.identifier.citationTarhini, A, Tehrani-Bagha, A, Kazan, M & Grady, B 2021, ' The effect of graphene flake size on the properties of graphene-based polymer composite films ', Journal of Applied Polymer Science, vol. 138, no. 6, 49821 .
dc.identifier.otherPURE UUID: b13c234f-0948-4a1a-b1da-679daddd822een_US
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dc.relation.ispartofseriesJournal of Applied Polymer Scienceen
dc.relation.ispartofseriesVolume 138, issue 6en
dc.subject.keywordelectrical conductivityen_US
dc.subject.keywordmechanical propertiesen_US
dc.subject.keywordpolymer composite filmen_US
dc.subject.keywordthermal conductivityen_US
dc.titleThe effect of graphene flake size on the properties of graphene-based polymer composite filmsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi