Next Article in Journal
Impact of Long-Term RF-EMF on Oxidative Stress and Neuroinflammation in Aging Brains of C57BL/6 Mice
Next Article in Special Issue
The Degradation Properties of MgO Whiskers/PLLA Composite In Vitro
Previous Article in Journal
In Vivo Performance of Decellularized Vascular Grafts: A Review Article
Previous Article in Special Issue
Biodegradable and Toughened Composite of Poly(Propylene Carbonate)/Thermoplastic Polyurethane (PPC/TPU): Effect of Hydrogen Bonding
Open AccessArticle

Toughness Enhancement of PHBV/TPU/Cellulose Compounds with Reactive Additives for Compostable Injected Parts in Industrial Applications

1
Polymers and Advanced Materials Group (PIMA), Universitat Jaume I, 12071 Castellón, Spain
2
Leartiker S. Coop., Xemein Etorbidea 12A, 48270 Markina-Xemein, Spain
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(7), 2102; https://doi.org/10.3390/ijms19072102
Received: 25 June 2018 / Revised: 16 July 2018 / Accepted: 17 July 2018 / Published: 19 July 2018
(This article belongs to the Special Issue Synthesis and Applications of Biopolymer Composites)
Poly(3-hydroxybutyrate-co-3-valerate), PHBV, is a bacterial thermoplastic biopolyester that possesses interesting thermal and mechanical properties. As it is fully biodegradable, it could be an alternative to the use of commodities in single-use applications or in those intended for composting at their end of life. Two big drawbacks of PHBV are its low impact toughness and its high cost, which limit its potential applications. In this work, we proposed the use of a PHBV-based compound with purified α-cellulose fibres and a thermoplastic polyurethane (TPU), with the purpose of improving the performance of PHBV in terms of balanced heat resistance, stiffness, and toughness. Three reactive agents with different functionalities have been tested in these compounds: hexametylene diisocianate (HMDI), a commercial multi-epoxy-functionalized styrene-co-glycidyl methacrylate oligomer (Joncryl® ADR-4368), and triglycidyl isocyanurate (TGIC). The results indicate that the reactive agents play a main role of compatibilizers among the phases of the PHBV/TPU/cellulose compounds. HMDI showed the highest ability to compatibilize the cellulose and the PHBV in the compounds, with the topmost values of deformation at break, static toughness, and impact strength. Joncryl® and TGIC, on the other hand, seemed to enhance the compatibility between the fibres and the polymer matrix as well as the TPU within the PHBV. View Full-Text
Keywords: biopolyester; compatibilizer; cellulose; elastomer; toughening; biodisintegration; heat deflection temperature biopolyester; compatibilizer; cellulose; elastomer; toughening; biodisintegration; heat deflection temperature
Show Figures

Graphical abstract

MDPI and ACS Style

Sánchez-Safont, E.L.; Arrillaga, A.; Anakabe, J.; Cabedo, L.; Gamez-Perez, J. Toughness Enhancement of PHBV/TPU/Cellulose Compounds with Reactive Additives for Compostable Injected Parts in Industrial Applications. Int. J. Mol. Sci. 2018, 19, 2102.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop