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dc.contributor.authorAkın, Okan
dc.contributor.authorTıhmınlıoğlu, Funda
dc.date.accessioned2018-03-27T07:59:59Z
dc.date.available2018-03-27T07:59:59Z
dc.date.issued2018-03
dc.identifier.citationAkın, O., and Tıhmınlıoğlu, F. (2018). Effects of organo-modified clay addition and temperature on the water vapor barrier properties of polyhydroxy butyrate homo and copolymer nanocomposite films for packaging applications. Journal of Polymers and the Environment, 26(3), 1121-1132. doi:10.1007/s10924-017-1017-2en_US
dc.identifier.issn1566-2543
dc.identifier.urihttp://doi.org/10.1007/s10924-017-1017-2
dc.identifier.urihttp://hdl.handle.net/11147/6841
dc.description.abstractPolymer nanocomposites, based on bacterial biodegradable thermoplastic polyester, poly(hydroxy-butyrate) (PHB), poly(hydroxyl-butyrate-co-hydroxy-valerate) (PHBHV), and commercial organo-modified montmorillonite (OMMT-Cloisite 10A) were prepared by solution casting method. This work aims to investigate the effect of Cloisite 10A type clay addition on the water vapour permeability properties of PHB/OMMT, and PHBHV/OMMT nanobiocomposite films. Temperature dependence of water vapor permeabilities of the films were also evaluated at various temperatures, and semi empirical permeability models were used to predict the permeability of polymer systems as a function of clay concentration and aspect ratio of nanoplates. Moreover, thermal, optical, and mechanical properties of the composites were examined by using varieties of techniques including differential scanning calorimeter (DSC), thermogravimetric analyzer (TGA), scanning electron microscope (SEM), and thin-film X-ray diffractometer (TF-XRD) respectively. Test results indicated that addition of highly intergallery swollen Cloisite 10A to the PHB/PHBHV, reduced the water vapor permeability up to 41 and 25% compared to native PHB and PHBHV films, respectively. Regarding the all mechanical properties measured, the maximum improvement was achieved for 3 wt% clay loaded samples for both PHB and PHBHV polymer composites. An increase of about 152 and 73% in tensile strength and of 77 and 18% in strain at break was achieved for PHB and PHBHV polymers, respectively. As a result of X-ray diffraction analysis, exfoliated structure was achieved at low clay loaded sample (1% w/w), however at higher concentration (3% w/w) the structure found as intercalated. Therefore, it is an evident that enhancement of characteristic properties highly depend on the dispersion level of clay particles in polymer matrix. The results obtained in this study show the feasibility of improvement of the properties of PHB based polymers with incorporation of nanoclay.en_US
dc.description.sponsorshipNational Research Council of Turkey (TUBITAK 108M335)en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relationinfo:eu-repo/grantAgreement/TUBITAK/MAG/108M335en_US
dc.relation.isversionof10.1007/s10924-017-1017-2en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBionanocompositeen_US
dc.subjectWater vaporen_US
dc.subjectPolymer filmsen_US
dc.subjectPHBHVen_US
dc.subjectBiodegradable polymersen_US
dc.subjectNanocompositesen_US
dc.titleEffects of organo-modified clay addition and temperature on the water vapor barrier properties of polyhydroxy butyrate homo and copolymer nanocomposite films for packaging applicationsen_US
dc.typearticleen_US
dc.contributor.authorIDTR1143en_US
dc.contributor.iztechauthorAkın, Okan
dc.contributor.iztechauthorTıhmınlıoğlu, Funda
dc.relation.journalJournal of Polymers and the Environmenten_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume26en_US
dc.identifier.issue3en_US
dc.identifier.startpage1121en_US
dc.identifier.endpage1132en_US
dc.identifier.wosWOS:000426565900024
dc.identifier.scopusSCOPUS:2-s2.0-85018480699
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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