Toughness Enhancement of Commercial Poly (Hydroxybutyrate-co-Valerate) (PHBV) by Blending with a Thermoplastic Polyurethane (TPU)
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Other documents of the author: González Ausejo, Jennifer; Sánchez-Safont, Estefanía; Cabedo, Luis; Gamez-Perez, Jose
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comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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Title
Toughness Enhancement of Commercial Poly (Hydroxybutyrate-co-Valerate) (PHBV) by Blending with a Thermoplastic Polyurethane (TPU)Date
2016Publisher
World Scientific Publishing Co Pte LtdISSN
1756-9737; 1756-9745Bibliographic citation
GONZÁLEZ-AUSEJO, Jennifer, et al. Toughness Enhancement of Commercial Poly (Hydroxybutyrate-co-Valerate)(PHBV) by Blending with a Thermoplastic Polyurethane (TPU). Journal of Multiscale Modelling, 2016, vol. 7, no 04, p. 1640008.Type
info:eu-repo/semantics/articlePublisher version
http://www.worldscientific.com/loi/jmmSubject
Abstract
Poly(hydroxyl butyrate-co-valerate) (PHBV) is a biopolymer synthesized by microorganisms that is fully biodegradable with improved thermal and tensile properties with respect to some commodity plastics. However, it ... [+]
Poly(hydroxyl butyrate-co-valerate) (PHBV) is a biopolymer synthesized by microorganisms that is fully biodegradable with improved thermal and tensile properties with respect to some commodity plastics. However, it presents an intrinsic brittleness that limits its potential application in replacing plastics in packaging applications. Films made of blends of PHBV with different contents of thermoplastic polyurethane (TPU) were prepared by single screw extruder and their fracture toughness behavior was assessed by means of the essential work of fracture (EWF) Method. As the crack propagation was not always stable, a partition method has been used to compare all formulations and to relate results with the morphology of the blends. Indeed, fully characterization of the different PHBV/TPU blends showed that PHBV was incompatible with TPU. The blends showed an improvement of the toughness fracture, finding a maximum with intermediate TPU contents. [-]
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Journal of Multiscale Modelling, 2016, vol. 7, núm. 04Rights
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