Influence of PVA and silica on chemical, thermo-mechanical and electrical properties of Celluclast-treated nanofibrillated cellulose composites

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dc.contributor.authorPoyraz, Bayram
dc.contributor.authorTozluoğlu, Ayhan
dc.contributor.authorCandan, Zeki
dc.contributor.authorDemir, Ahmet
dc.contributor.authorYavuz, Mustafa
dc.date.accessioned2020-04-30T23:18:30Z
dc.date.available2020-04-30T23:18:30Z
dc.date.issued2017
dc.departmentDÜ, Teknoloji Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.descriptionWOS: 000412959300043en_US
dc.descriptionPubMed: 28602986en_US
dc.description.abstractThis study reports on the effects of organic polyvinyl alcohol (PVA) and inorganic silica polymer on properties of Celluclast-treated nanofibrillated cellulose composites. Nanofibrillated cellulose was isolated from Eucalyptus camaldulensis and prior to high-pressure homogenizing was pretreated with Celluclast enzyme in order to lower energy consumption. Three nanocomposite films were fabricated via the casting process: nanofibrillated cellulose (CNF), nanocellulose-PVA (CNF-P)and,nanocellulose-silica (CNF-Si). Chemical characterization, crystallization and thermal stability were determined using FT-IR and TGA. Morphological alterations were monitored with SEM. The Young's and storage moduli of the nanocomposites were determined via a universal testing machine and DTMA. The real and imaginary parts of permittivity and electric modulus were evaluated using an impedance analyzer. The crystallinity values of the nanocomposites calculated from the FT-IR were in agreement with the TGA results, showing that the lowest crystallinity value was in the CNF-Si. The CNF-P displayed the highest tensile strength. At a high temperature interval, the storage modulus of the CNF-Si was greater than that of the CNF or CNF-P. The CNF-Si also exhibited a completed singular relaxation process, while the CNF and the CNF-P processes were uncompleted. Consequently, in terms of industrial applications, although the CNF-P composite had mechanical advantages, the CNF-Si composite displayed the best thermo-mechanical properties. (C) 2017 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [COST 1140022]; Istanbul University Research FundIstanbul University [4806, 19515]en_US
dc.description.sponsorshipThe authors wish to thank the Scientific and Technological Research Council of Turkey (TUBITAK Project Number: COST 1140022) and the Istanbul University Research Fund (Project Number: 4806 and Project Number: 19515) for their financial support of this study.en_US
dc.identifier.doi10.1016/j.ijbiomac.2017.06.018en_US
dc.identifier.endpage392en_US
dc.identifier.issn0141-8130
dc.identifier.issn1879-0003
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage384en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2017.06.018
dc.identifier.urihttps://hdl.handle.net/20.500.12684/3367
dc.identifier.volume104en_US
dc.identifier.wosWOS:000412959300043en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofInternational Journal Of Biological Macromoleculesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNanocompositesen_US
dc.subjectPVAen_US
dc.subjectSilicaen_US
dc.subjectMechanical propertiesen_US
dc.subjectElectrical propertiesen_US
dc.titleInfluence of PVA and silica on chemical, thermo-mechanical and electrical properties of Celluclast-treated nanofibrillated cellulose compositesen_US
dc.typeArticleen_US

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