Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 48, Issue 17, Pages 2059-2070Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998313494103
Keywords
Clay; nanocomposites; biodegradable; extrusion; morphology; mechanical properties
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Funding
- National Agency of Science and Technology (ANPCyT) [PICT06 1560, Fonarsec FSNano004]
- National University of Mar del Plata (UNMdP) [15G327]
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The effect of extrusion conditions on the performance of polycaprolactone /organo-modified clay nanocomposites was studied. It was demonstrated that the extrusion parameters have negligible effect on the molecular weight of polycaprolactone, 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-polycaprolactone/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.
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