EFFECT OF PROCESSING PARAMETERS ON THE GENERAL PERFORMANCE OF PCL/CLAY NANOCOMPOSITES

LEANDRO N. LUDUEÑA; MATIAS LANFRANCONI; JOSE M. KENNY; ANALÍA VAZQUEZ

Nuremberg

Conferencia; 29th International Conference of the POLYMER PROCESSING SOCIETY; 2013

The effect of extrusion conditions on the performance of Polycaprolactone (PCL)/organo-modified clay nanocomposites was studied. It was demonstrated that the extrusion parameters have negligible effect on the molecular weight of PCL, on the morphology of the nanocomposites and on the final thermal/mechanical properties of the materials. This result was a consequence of the previous optimization of both polymer/clay compatibility and clay processing stability. Finally, the molten-PCL/clay mixtures were post-processed by different techniques submitting the mixtures to extensional flow. Clay platelets alignment was observed as a function of the extensional flow intensity which further improved the mechanical properties of the nanocomposites.