2024-03-29T08:42:13Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/1664172023-05-29T10:34:45Zcom_10234_7034com_10234_9col_10234_8619
00925njm 22002777a 4500
dc
González Ausejo, Jennifer
author
Sánchez-Safont, Estefanía
author
LAGARON, Jose
author
Balart, Rafael
author
Cabedo, Luis
author
Gamez-Perez, Jose
author
2017-02
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was blended with poly(lactic acid) (PLA) with various reactive processing agents to decrease its brittleness and enhance its processability. Three diisocyanates, namely, hexamethylene diisocyanate, poly(hexamethylene diisocyanate), and 1,4-phenylene diisocyanate, were used as compatibilizing agents. The morphology, thermomechanical properties, and rheological behavior were investigated with scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, tensile testing, dynamomechanical thermal analysis in torsion mode (dynamic mechanical analysis), and oscillatory rheometry with a parallel-plate setup. The presence of the diisocyanates resulted in an enhanced polymer blend compatibility; this led to an improvement in the overall mechanical performance but did not affect the thermal stability of the system. A slight reduction in the PHBV crystallinity was observed with the incorporation of the diisocyanates. The addition of diisocyanates to the PHBV–PLA blend resulted in a notable increase in the final complex viscosity at low frequencies when compared with the same system without compatibilizers
González-Ausejo, J., Sánchez-Safont, E., Lagarón, J. M., Balart, R., Cabedo, L. and Gámez-Pérez, J. (2017), Compatibilization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)–poly(lactic acid) blends with diisocyanates. J. Appl. Polym. Sci., 134, 44806. doi: 10.1002/app.44806
http://hdl.handle.net/10234/166417
https://doi.org/10.1002/app.44806
biopolymers and renewable polymers
blends
compatibilization
packaging
biodegradable
Compatibilization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)– poly(lactic acid) blends with diisocyanates