Correlation between composition, structure and properties of poly(lactic acid) / polyadipate based nanobiocomposites
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-bio...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/12620 |
| Acceso en línea: | http://hdl.handle.net/11336/12620 |
| Access Level: | acceso abierto |
| Palabra clave: | Ageing Nanocomposites Organo-Modified Montmorillonite Poly(Lactic Acid) https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | 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. |
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