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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

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.citation	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.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.subject	Termoplàstics
dc.subject	Materials compostos
dc.title	Water absorption and hydrothermal performance of PHBV/sisal biocomposites
dc.type	journal article	es_ES
dc.date.updated	2020-12-14T15:59:01Z
dc.identifier.doi	10.1016/j.polymdegradstab.2014.04.012
dc.identifier.idgrec	104895
dc.rights.accessRights	open access	es_ES