Fabrication and characterization of polyaniline functionalized graphene nanosheets (GNSs)/polydimethylsiloxane (PDMS) nanocomposite films

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dc.authorid0000-0002-8554-3025en_US
dc.authorid0000-0001-8405-3676en_US
dc.authorid0000-0003-2960-5188en_US
dc.authorscopusid55791385000en_US
dc.authorscopusid57213235247en_US
dc.authorscopusid31168170200en_US
dc.contributor.authorAltın, Yasin
dc.contributor.authorÜnsal, Ömer Faruk
dc.contributor.authorBedeloğlu, Ayşe
dc.date.accessioned2022-04-01T08:36:47Z
dc.date.available2022-04-01T08:36:47Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Polimer Malzeme Mühendisliği Bölümüen_US
dc.description.abstractIn this study, graphene nanosheets (GNSs)/poly(dimethylsiloxane) (PDMS) nanocomposites and the novel polyaniline (PANI)-functionalized graphene nanosheets (GNSs)/poly(dimethylsiloxane) (PDMS) nanocomposites were fabricated successfully. GNSs and PANI-functionalized GNSs were dispersed in PDMS matrix at different nanofiller concentration and nanocomposites were prepared via solution casting method. PANI functionalization were performed by in-situ polymerization of aniline in the presence of GNSs and was used in order to be dispersed homogenously and efficiently in the PDMS matrix. Besides graphene layers were also isolated to hinder aggregation in the polymeric matrix. The effect of PANI functionalization of GNSs and filler concentration on dielectric, electrical and mechanical properties of nanocomposite films were investigated. According to dielectric measurements, the dielectric constant of polymer nanocomposites highly dependant on frequency, so dielectric constant was characterized in a wide frequency range (1 Hz–10 MHz) at room temperature, in this study. The dielectric constant of PDMS nanocomposites containing 1.50% GNSs and 1.50% PANI-GNSs increased by 111 times and 24 times, at 1 Hz, compared to pure PDMS, respectively. Besides, electrical conductivity increased 6868 and 1474 times with the addition of GNSs and PANI-GNSs, respectively. Optimized GNSs/PDMS and PANI-functionalized GNSs/PDMS nanocomposites can be candidate for soft actuators to be used in artificial muscle applications, in the future.en_US
dc.identifier.doi10.1177/09673911211023941en_US
dc.identifier.endpage752en_US
dc.identifier.issn09673911
dc.identifier.issue9en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage741en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1828
dc.identifier.volume29en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAltın, Yasin
dc.institutionauthorÜnsal, Ömer Faruk
dc.institutionauthorBedeloğlu, Ayşe
dc.language.isoenen_US
dc.publisherSAGE Publications Ltden_US
dc.relation.ispartofPolymers and Polymer Compositesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDielectric constanten_US
dc.subjectgraphene nanosheets (GNSs)en_US
dc.subjectgraphene oxideen_US
dc.subjectpoly (dimethyl siloxane) (PDMS)en_US
dc.subjectpolyanilineen_US
dc.subjectpolymer nanocompositeen_US
dc.titleFabrication and characterization of polyaniline functionalized graphene nanosheets (GNSs)/polydimethylsiloxane (PDMS) nanocomposite filmsen_US
dc.typeArticleen_US

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