Effect of surface modification of colloidal silica nanoparticles on the rigid amorphous fraction and mechanical properties of amorphous polyurethane-urea-silica nanocomposites

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dc.contributor.authorOğuz, Oğuzhan
dc.contributor.authorCandau, Nicolas
dc.contributor.authorBernhard, Stephane H. F.
dc.contributor.authorSöz, Çağla
dc.contributor.authorHeinz, Özge
dc.contributor.authorStochlet, Gregory
dc.contributor.authorMenceloğlu, Yusuf Z.
dc.date.accessioned2021-01-08T21:51:22Z
dc.date.available2021-01-08T21:51:22Z
dc.date.issued2019
dc.departmentTAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümüen_US
dc.descriptioncandau, nicolas/0000-0002-1559-8696; Oguz, Oguzhan/0000-0002-4457-5274en_US
dc.descriptionWOS:000496886100001en_US
dc.description.abstractColloidal silica nanoparticles (NPs) modified with eight different silane coupling agents were incorporated into an amorphous poly(tetramethylene oxide)-based polyurethane-urea copolymer matrix at a concentration of 10 wt % (4.4 vol %) in order to investigate the effect of their surface chemistry on the structure-property behavior of the resulting nanocomposites. The rigid amorphous fraction (RAF) of the nanocomposite matrix as determined by differential scanning calorimetry and dynamic mechanical analysis was confirmed to vary significantly with the surface chemistry of the NPs and to be strongly correlated with the bulk mechanical properties in simple tension. Hence, nanocomposites with an RAF of about 30 wt % showed a 120% increase in Young's modulus, a 25% increase in tensile strength, a 15% decrease in elongation at break with respect to the neat matrix, which had no detectable RAF, whereas nanocomposites with an RAF of less than 5% showed a 60% increase in Young's modulus, a 10% increase in tensile strength and a 5% decrease in the elongation at break. (c) 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [109M073]
dc.description.sponsorshipSome preliminary investigations for this study were performed as part of a project funded by the Scientific and Technical Research Council of Turkey (TUBITAK) with the contract number 109M073.
dc.identifier.doi10.1002/pola.29529
dc.identifier.issn0887-624X
dc.identifier.issn1099-0518
dc.identifier.scopus2-s2.0-85075453222
dc.identifier.scopusqualityN/A
dc.identifier.urihttp://doi.org/10.1002/pola.29529
dc.identifier.urihttps://hdl.handle.net/20.500.12846/180
dc.identifier.wosWOS:000496886100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorSöz, Çağla
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofJournal Of Polymer Science Part A-Polymer Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectElastomersen_US
dc.subjectPolyurethanesen_US
dc.subjectSilicasen_US
dc.subjectModificationen_US
dc.subjectNanocompositesen_US
dc.subjectThermal Propertiesen_US
dc.subjectMechanical Propertiesen_US
dc.subjectDynamic Mechanical Propertiesen_US
dc.subjectSurface Modificationen_US
dc.titleEffect of surface modification of colloidal silica nanoparticles on the rigid amorphous fraction and mechanical properties of amorphous polyurethane-urea-silica nanocomposites
dc.typeArticle

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