Porous membranes and thin films containing poly-lactic acid (PLA), carvacrol (CRV) and graphene nanoplatelets (GNP) were fabricated by electrospinning and solvent casting at different formulations. The systems were characterized from a mechanical, morphological, calorimetric and spectroscopic point of view. CRV release as a function of time was studied and a mathematical model was used to fit and interpret the data in order to investigate the release mechanism. The results indicate that the incorporation of GNP generally determined a simultaneous strengthening, stiffening and toughening effect, while preserving a good ductility. Furthermore, integrating GNP allowed tuning the amount and kinetics of CRV release, and proved to reduce the initial burst release effect.

R Scaffaro, A Maio, F Lopresti (2019). Effect of graphene and fabrication technique on the release kinetics of carvacrol from polylactic acid. COMPOSITES SCIENCE AND TECHNOLOGY, 169, 60-69 [10.1016/j.compscitech.2018.11.003].

Effect of graphene and fabrication technique on the release kinetics of carvacrol from polylactic acid

R Scaffaro
;
A Maio;F Lopresti
2019-01-05

Abstract

Porous membranes and thin films containing poly-lactic acid (PLA), carvacrol (CRV) and graphene nanoplatelets (GNP) were fabricated by electrospinning and solvent casting at different formulations. The systems were characterized from a mechanical, morphological, calorimetric and spectroscopic point of view. CRV release as a function of time was studied and a mathematical model was used to fit and interpret the data in order to investigate the release mechanism. The results indicate that the incorporation of GNP generally determined a simultaneous strengthening, stiffening and toughening effect, while preserving a good ductility. Furthermore, integrating GNP allowed tuning the amount and kinetics of CRV release, and proved to reduce the initial burst release effect.
5-gen-2019
R Scaffaro, A Maio, F Lopresti (2019). Effect of graphene and fabrication technique on the release kinetics of carvacrol from polylactic acid. COMPOSITES SCIENCE AND TECHNOLOGY, 169, 60-69 [10.1016/j.compscitech.2018.11.003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/369882
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