Processing and characterization of thermoplastic starch/polycaprolactone/compatibilizer ternary blends for packaging applications
Thermoplastic starch (TPS)/polycaprolactone(PCL) blends were obtained by melt mixing. First, thebest formulation of thermoplastic starch (starch, plasticizerand additives) was studied. The obtained filmswere characterized by means of differential scanningcalorimetry, DSC (melting temperature and cry...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/5858 |
| Acceso en línea: | http://hdl.handle.net/11336/5858 |
| Access Level: | acceso abierto |
| Palabra clave: | Thermoplastic-Starch Polycaprolactone Grafting Mechanical-Properties Biodegradability https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | Thermoplastic starch (TPS)/polycaprolactone(PCL) blends were obtained by melt mixing. First, thebest formulation of thermoplastic starch (starch, plasticizerand additives) was studied. The obtained filmswere characterized by means of differential scanningcalorimetry, DSC (melting temperature and crystallinitydegree); thermogravimetric analysis, TGA (real compositionof the blend and thermal stability); tensile tests(mechanical properties); infrared spectroscopy, FTIR(interactions between components); scanning electronmicroscopy, SEM (morphology); and water absorptiontests. The effect of PCL/TPS ratio on the previouslymentioned characteristics and properties were studied.In addition, the effect of using PCL modified withmaleic anhydride as compatibilizer was also analyzed.An optimal compatibilizer content was found improvingthe mechanical properties and slowing down thedegradation rate in soil of the blends. On the otherhand, a slight increase in the water absorption of theblends was found in comparison with the noncompatibilizedones. |
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