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dc.creatorPeleš, Adriana
dc.creatorAleksić, Obrad S.
dc.creatorPavlović, Vera P.
dc.creatorĐoković, Vladimir
dc.creatorDojčilović, Radovan
dc.creatorNikolić, Z.
dc.creatorMarinković, F.
dc.creatorMitrić, Miodrag
dc.creatorBlagojević, Vladimir A.
dc.creatorVlahović, Branislav
dc.creatorPavlović, Vladimir B.
dc.date.accessioned2018-10-29T12:15:42Z
dc.date.available2018-10-29T12:15:42Z
dc.date.issued2018
dc.identifier.issn0031-8949 (Print)
dc.identifier.issn1402-4896 (Online)
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/4079
dc.description.abstractThe influence of the mechanical activation of ZnO nanoparticle fillers on the structural and electrical properties of the matrix of poly(vinylidenefluoride)-ZnO (PVDF-ZnO) films was investigated. Transmission electron microscopy and scanning electron microscopy analyses showed that mechanical activation in a high energy planetary ball mill reduces the size of ZnO particles. X-ray diffraction and Raman spectroscopy revealed that PVDF crystallized predominantly as the γ-phase. Non-activated ZnO filler reduces the degree of the crystallinity of the matrix and promotes crystallization of α-phase of PVDF in the film, while the fillers activated for 5 and 10 min induce crystallization of β-phase, indicating that mechanical activation of the filler can be used as a general method for fabrication of PVDF composites with increased content of piezoelectric β-phase crystals. Dielectric spectroscopy measurements show that polymer composite with the high content of β-phase (with ZnO filler activated for 5 min) exhibits the highest value of dielectric permittivity in 150-400 K range of temperatures. Kinetic analysis shows combined effects of increased surface area and increased concentration of surface defects on the interactions between polymer chains and activated nanoparticles. © 2018 IOP Publishing Ltd.
dc.publisherIOP Publishing
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS//
dc.relationUnited States National Science Foundation (NSF) / Centers of Research Excellence in Science and Technology (CREST), Grant HRD-0833184
dc.relationUnited States National Aeronautics and Space Administration (NASA), Grant NNX09AV07A
dc.rightsrestrictedAccess
dc.sourcePhysica Scripta
dc.subjectcrystallization
dc.subjectdielectric properties
dc.subjectmechanical activation
dc.subjectpolymer composites
dc.subjectPVDF
dc.subjectZnO
dc.titleStructural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractДојчиловић, Радован; Митрић, Миодраг; Влаховић, Бранислав; Пелеш, Aдриана; Aлексић, Обрад; Ђоковић, Владимир; Павловић, Владимир Б.; Павловић, Вера П.; Николић, З.; Маринковић, Ф.; Благојевић, Владимир A.;
dc.citation.spage105801
dc.citation.volume93
dc.identifier.wos000442645300001
dc.identifier.doi10.1088/1402-4896/aad749
dc.identifier.scopus2-s2.0-85054040483
dc.type.versionpublishedVersion


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