Polyurethaneurea–silica nanocomposites: Preparation and investigation of the structure–property behavior

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dc.authorid0000-0003-3942-070X
dc.contributor.authorMalay, Özge
dc.contributor.authorOğuz, Oğuzhan
dc.contributor.authorSöz, Çağla
dc.contributor.authorYılgör, Emel
dc.contributor.authorYılgör, İskender
dc.contributor.authorMenceloğlu, Yusuf Ziya
dc.date.accessioned2021-03-30T08:48:16Z
dc.date.available2021-03-30T08:48:16Z
dc.date.issued2013
dc.departmentTAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümüen_US
dc.description.abstractNanocomposites consisting of thermoplastic polyurethane–urea (TPU) and silica nanoparticles of various size and filler loadings were prepared by solution blending and extensively characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), thermal analysis, tensile tests, and nanoindentation. TPU copolymer was based on a cycloaliphatic diisocyanate and poly(tetramethylene oxide) (PTMO-2000) soft segments and had urea hard segment content of 20% by weight. TPU/silica nanocomposites using silica particles of different size (29, 74 and 215 nm) and at different loadings (1, 5, 10, 20 and 40 wt. %) were prepared and characterized. Solution blending using isopropyl alcohol resulted in even distribution of silica nanoparticles in the polyurethane–urea matrix. FTIR spectroscopy indicated strong interactions between silica particles and polyether segments. Incorporation of silica nanoparticles of smaller size led to higher modulus and tensile strength of the nanocomposites, and elastomeric properties were retained. Increased filler content of up to about 20 wt. % resulted in materials with higher elastic moduli and tensile strength while the glass transition temperature remained the same. The fracture toughness increased relative to neat TPU regardless of the silica particle size. Improvements in tensile properties of the nanocomposites, particularly at intermediate silica loading levels and smaller particle size, are attributed to the interactions between the surface of silica nanoparticles and ether linkages of the polyether segments of the copolymers.
dc.identifier.citationMalay, O., Oğuz, O., Koşak Söz, Ç., Yılgör, E., Yılgör, I., & Menceloğlu, Y. Z. (2013). Polyurethaneurea–silica nanocomposites: Preparation and investigation of the structure–property behavior. Polymer, 54(20), 5310-5320.
dc.identifier.doi10.1016/j.polymer.2013.07.043
dc.identifier.endpage5320en_US
dc.identifier.issn0032-3861
dc.identifier.issue20en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage5310en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12846/564
dc.identifier.volume54en_US
dc.institutionauthorSöz, Çağla
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPolymer
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectNanocompositeen_US
dc.subjectThermoplastic polyurethane–ureaen_US
dc.subjectSilica nanoparticlesen_US
dc.subjectNanokompoziten_US
dc.subjectTermoplastik Poliüretan-üreen_US
dc.subjectSilika nanopartikülleren_US
dc.subjectNanokompositen_US
dc.subjectThermoplastischer Polyurethan Harnstoffen_US
dc.subjectSilica Nanopartikelen_US
dc.titlePolyurethaneurea–silica nanocomposites: Preparation and investigation of the structure–property behavior
dc.typeArticle

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