Matrix impact on the mechanical, thermal and electrical properties of microfluidized nanofibrillated cellulose composites

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dc.contributor.authorPoyraz, Bayram
dc.contributor.authorTozluoğlu, Ayhan
dc.contributor.authorCandan, Zeki
dc.contributor.authorDemir, Ahmet
dc.date.accessioned2020-04-30T23:19:06Z
dc.date.available2020-04-30T23:19:06Z
dc.date.issued2017
dc.departmentDÜ, Teknoloji Fakültesien_US
dc.descriptionWOS: 000414549700007en_US
dc.description.abstractThis study reports on the effect of organic polyvinyl alcohol (PVA) and silica matrix on the properties of cellulose-based nanocomposites. Nanofibrillated cellulose was isolated from kraft pulp and treated with Pulpzyme HC 2500 enzyme prior to high-pressure homogenization in order to lower energy consumption. Three nanocomposite films were fabricated via the casting process: nanofibrillated cellulose, nanocellulose-PVA (NC-PVA) and nanocellulose-silica (NC-Si). Chemical characterization and crystallization were determined with FTIR. Thermal stability was investigated with thermogravimetric analysis. Morphological alterations were monitored with scanning electron microscopy. A universal testing machine and dynamic mechanical thermal analysis were used for determination of Young's and storage moduli. The real and imaginary parts of permittivity and electric modulus were evaluated using an impedance analyzer. Considerable alterations were seen under FTIR. Thermal stability was lower in NC-Si than in NC-PVA due to lower crystallinity. Higher Young's modulus and storage moduli were observed in NC-PVA than in NC-Si. NC-PVA exhibited a singular relaxation process, while a double relaxation process was seen in NC-Si. Consequently, the nanocomposite film prepared from the organic matrix (NC-PVA) had a mechanical advantage for industrial applications. However, neat NC composite revealed the highest storage modulus and thermal stability.en_US
dc.description.sponsorshipTUBITAK (European Cooperation Science in Technology) [COST 114O022]; Istanbul UniversityIstanbul University [4806, 19515]en_US
dc.description.sponsorshipThe authors thank TUBITAK (European Cooperation Science in Technology: project no. COST 114O022) for support in this research. They also thank the Istanbul University Research Fund for financial support of this study (project nos. 4806 and 19515).en_US
dc.identifier.doi10.1515/polyeng-2017-0022en_US
dc.identifier.endpage931en_US
dc.identifier.issn0334-6447
dc.identifier.issn2191-0340
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage921en_US
dc.identifier.urihttps://doi.org/10.1515/polyeng-2017-0022
dc.identifier.urihttps://hdl.handle.net/20.500.12684/3647
dc.identifier.volume37en_US
dc.identifier.wosWOS:000414549700007en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWalter De Gruyter Gmbhen_US
dc.relation.ispartofJournal Of Polymer Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectmatrixen_US
dc.subjectnanocompositesen_US
dc.subjectnanofibrillated celluloseen_US
dc.subjectPVAen_US
dc.subjectsilicaen_US
dc.titleMatrix impact on the mechanical, thermal and electrical properties of microfluidized nanofibrillated cellulose compositesen_US
dc.typeArticleen_US

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