Polímeros (Dec 2014)

Mechanical, thermal, and barrier properties of methylcellulose/cellulose nanocrystals nanocomposites

  • Hudson Alves Silvério,
  • Wilson Pires Flauzino Neto,
  • Ingrid Souza Vieira da Silva,
  • Joyce Rover Rosa,
  • Daniel Pasquini,
  • Rosana Maria Nascimento de Assunção,
  • Hernane da Silva Barud,
  • Sidney José Lima Ribeiro

DOI
https://doi.org/10.1590/0104-1428.1691
Journal volume & issue
Vol. 24, no. 6
pp. 683 – 688

Abstract

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In this work, the effects of incorporating cellulose nanocrystals from soy hulls (WSH30) on the mechanical, thermal, and barrier properties of methylcellulose (MC) nanocomposites were evaluated. MC/WSH30 nanocomposite films with different filler levels (2, 4, 6, 8, and 10%) were prepared by casting. Compared to neat MC film, improvements in the mechanical and barrier properties were observed, while thermal stability was retained. The improved mechanical properties of nanocomposites prepared may be attributed to mechanical percolation of WSH30, formation of a continuous network of WSH30 linked by hydrogen interactions and a close association between filler and matrix.

Keywords