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

Naffakh Cherradi Hadi, Mohammed and Díez-Pascual, Ana M. and 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.

Description

Title: Polymer blend nanocomposites based on poly(L-lactic acid), polypropylene and WS2 inorganic nanotubes
Author/s:
  • Naffakh Cherradi Hadi, Mohammed
  • Díez-Pascual, Ana M.
  • Marco, Carlos
Item Type: Article
Título de Revista/Publicación: RSC Advances
Date: April 2016
ISSN: 2046-2069
Volume: 6
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada e Ingeniería de Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2013-41021-PUnspecifiedUnspecifiedDesarrollo de materiales nanocompuestos avanzados basados en polímeros biodegradables y nanotubos inorgánicos

More information

Item ID: 45941
DC Identifier: http://oa.upm.es/45941/
OAI Identifier: oai:oa.upm.es:45941
DOI: 10.1039/C6RA05803E
Official URL: http://pubs.rsc.org/-/content/articlelanding/2016/ra/c6ra05803e#!divAbstract
Deposited by: Memoria Investigacion
Deposited on: 22 May 2017 07:50
Last Modified: 20 Mar 2019 14:48
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