INVESTIGADORES
D'AMICO david Alberto
congresos y reuniones científicas
Título:
Biodegradable polymer matrix nanocomposites for packaging applications
Autor/es:
L. LUDUEÑA; D'AMICO DAVID ALBERTO; A. VÁZQUEZ; V. P. CYRAS; L. B. MANFREDI; ALVAREZ VERA
Reunión:
Workshop; 4to Workshop in Green Chemistry and Nanotechnologies in Polymer Chemistry.; 2013
Resumen:
In this work, Polycaprolactone (PCL) and Poly(hydroxybutyrate) (PHB) nanocomposites reinforced with sodium and organo-modified clays were prepared by melt intercalation and solvent casting. In the case of the PCL based nanocomposites, the effect of clay type and content and melt processing conditions/technique on the morphology, mechanical/thermal/barrier properties and biodegradability of the nanocomposites was studied. The optimal reinforcement (C20A) for PCL was that showing the strongest melt processing resistance and the lowest hydrophobicity. PCL/C20A nanocomposites showed mechanical, creep, impact and barrier properties improvements while the biodegradability remained almost constant. The PHB/clay nanocomposites were prepared by solvent casting. The incorporation of the organo-modified clay improved the mechanical properties and increased the thermal stability of the PHB matrix. This result has technological importance due to the molecular weight degradation that takes place when PHB is processed by temperature and shear forces such as in extrusion processes.