Water absorption and hydrothermal performance of PHBV/sisal biocomposites
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Water absorption and hydrothermal performance of PHBV/sisal biocomposites

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Water absorption and hydrothermal performance of PHBV/sisal biocomposites

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dc.contributor.author Badia Valiente, José David
dc.contributor.author Kittikorn, T.
dc.contributor.author Strömberg, E.
dc.contributor.author Santonja-Blasco, L.
dc.contributor.author Martínez-Felipe, A.
dc.contributor.author Ribes Greus, A.
dc.contributor.author Ek, M.
dc.contributor.author Karlsson, S.
dc.date.accessioned 2020-12-14T15:59:01Z
dc.date.available 2020-12-14T15:59:01Z
dc.date.issued 2014
dc.identifier.uri https://hdl.handle.net/10550/76666
dc.description.abstract The performance of biocomposites of poly(hydroxybutyrate-co-valerate) (PHBV) and sisal fibre subjected to hydrothermal tests at different temperatures above the glass transition of PHBV (TH = 26, 36 and 46 °C) was evaluated in this study. The influences of both the fibre content and presence of coupling agent were focused. The water absorption capability and water diffusion rate were considered for a statistical factorial analysis. Afterwards, the physico-chemical properties of water-saturated biocomposites were assessed by Fourier-Transform Infrared Analysis, Size Exclusion Chromatography, Differential Scanning Calorimetry and Scanning Electron Microscopy. It was found that the water diffusion rate increased with both temperature and percentage of fibre, whereas the amount of absorbed water was only influenced by fibre content. The use of coupling agent was only relevant at the initial stages of the hydrothermal test, giving an increase in the diffusion rate. Although the chemical structure and thermal properties of water-saturated biocomposites remained practically intact, the physical performance was considerably affected, due to the swelling of fibres, which internally blew-up the PHBV matrix, provoking cracks and fibre detachment.
dc.language.iso eng
dc.relation.ispartof Polymer Degradation and Stability, 2014, vol. 108, p. 166-174
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Badia Valiente, José David Kittikorn, T. Strömberg, E. Santonja-Blasco, L. Martínez-Felipe, A. Ribes Greus, A. Ek, M. Karlsson, S. 2014 Water absorption and hydrothermal performance of PHBV/sisal biocomposites Polymer Degradation and Stability 108 166 174
dc.subject Termoplàstics
dc.subject Materials compostos
dc.title Water absorption and hydrothermal performance of PHBV/sisal biocomposites
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-12-14T15:59:01Z
dc.identifier.doi https://doi.org/10.1016/j.polymdegradstab.2014.04.012
dc.identifier.idgrec 104895

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