Polymer blend nanocomposites based on poly(L-lactic acid), polypropylene and WS2 inorganic nanotubes

Naffakh Cherradi Hadi, Mohammed; Díez-Pascual, Ana M. y Marco, Carlos (2016). Polymer blend nanocomposites based on poly(L-lactic acid), polypropylene and WS2 inorganic nanotubes. "RSC Advances", v. 6 ; pp. 40033-40044. ISSN 2046-2069. https://doi.org/10.1039/C6RA05803E.

Descripción

Título: Polymer blend nanocomposites based on poly(L-lactic acid), polypropylene and WS2 inorganic nanotubes
Autor/es:
  • Naffakh Cherradi Hadi, Mohammed
  • Díez-Pascual, Ana M.
  • Marco, Carlos
Tipo de Documento: Artículo
Título de Revista/Publicación: RSC Advances
Fecha: Abril 2016
Volumen: 6
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Física Aplicada e Ingeniería de Materiales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Tungsten disulphide inorganic nanotubes (INT-WS2) have been incorporated into poly(L-lactic acid) (PLLA)/ polypropylene (PP) blends compatibilized with polypropylene-grafted-maleic anhydride (PP-g-MAH), and their effects on the morphology, thermal and mechanical properties of the resulting nanocomposites have been investigated. The nanofillers were uniformly dispersed at the nanoscale via a melt-blending process. The addition of 1.0 wt% INT-WS2 to the PLLA/PP blends hardly affected their thermal stability or their degradation mechanism. Differential scanning calorimetry (DSC) thermograms revealed the nucleating role of INT-WS2 on both polymeric components, reflected not only in an increase in the crystallization temperature from the melt but also in a rise in the crystallization enthalpy and the suppression of the cold-crystallization process; this effect was found to be more pronounced on PLLA and the blends rich in this component. Dynamic mechanical analysis (DMA) measurements demonstrated that the storage modulus of the nanocomposites was higher than those of the binary blends in the whole temperature range studied, ascribed to a synergistic effect of their increased crystallinity and the high INT-WS2 rigidity. This study opens up new perspectives to develop novel INTWS2/polymer blend hybrid nanocomposites that show great potential for biomedical applications.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaMAT2013-41021-P. MNSin especificarSin especificarMinistry Economy and Competitivity - MINECO

Más información

ID de Registro: 45941
Identificador DC: http://oa.upm.es/45941/
Identificador OAI: oai:oa.upm.es:45941
Identificador DOI: 10.1039/C6RA05803E
URL Oficial: http://pubs.rsc.org/-/content/articlelanding/2016/ra/c6ra05803e#!divAbstract
Depositado por: Memoria Investigacion
Depositado el: 22 May 2017 07:50
Ultima Modificación: 22 May 2017 07:50
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