KMID : 1024520170260010001
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Journal of the Environmental Sciences 2017 Volume.26 No. 1 p.1 ~ p.10
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Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/Graphene Oxide Nanocomposite Films: Thermomechanical Properties, Oxygen Transmission Rates, and Hydrolytic Degradation
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You Eun-Jung
Ha Chang-Sik Kim Gue-Hyun Lee Won-Ki
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Abstract
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In this study, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/graphene oxide (GO) nanocomposite films containing various content of GO were prepared using solution casting method. The effect of GO content on Young¡¯s modulus and dispersion of GO in PHBV matrix was investigated. Also, the thermomechanical properties, oxygen transmission rates and hydrolytic degradation of PHBV/GO nanocomposite films were studied. The addition of GO into PHBV improves the Young¡¯s modulus and decreases thermal expansion coefficient. The improvement can be mainly attributed to good dispersion of GO and interfacial interactions between PHBV and GO. Furthermore, PHBV/GO nanocomposite films show good oxygen barrier properties. PHBV/GO nanocomposites show lower hydrolytic degradation rates with increasing content of GO.
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KEYWORD
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Graphene oxide, Poly(3-hydroxybutyrate-co-3-hydroxyvalerate), Hydrolytic degradation, Modulus, Barrier property
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