Artículos de revistas
Correlation between composition, structure and properties of poly(lactic acid) / polyadipate based nanobiocomposites
Fecha
2010-06-15Registro en:
Martino, Veronica P.; Ruseckaite, Roxana Alejandra; Jiménez, Alfonso; Averous, Luc; Correlation between composition, structure and properties of poly(lactic acid) / polyadipate based nanobiocomposites; Wiley Vch Verlag; Macromolecular Materials And Engineering (print); 295; 6; 15-6-2010; 551-558
1438-7492
Autor
Martino, Veronica P.
Ruseckaite, Roxana Alejandra
Jiménez, Alfonso
Averous, Luc
Resumen
Poly(lactic acid) plasticized with 15 and 20 wt.-% of polyadipate was melt-blended with different amounts of an O-MMT (1–5 wt.-%) to prepare nano-biocomposites. The effect of plasticizer and nanofiller contents on the morphology and on thermal, mechanical and barrier properties of PLA-based nano-biocomposites was evaluated in order to understand their structure-properties relationships. The oxygen transmission rate was notably reduced (around 45%) with increasing amount of clay due to an increased tortuosity. However, for clay concentrations above 3 wt.-%, a significant detriment in ductile properties could also be observed. For a given amount of nanofiller, the increasing plasticizer concentration improved the clay dispersion through the polymeric matrix.