Effects of heat treatment on chitosan nanocomposite film reinforced with nanocrystalline cellulose and tannic acid

Rubentheren V 1 , Ward TA 2 , Chee CY 1 , Nair P 1 , Salami E 1 , Fearday C 1

Affiliations 

  • 1 Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • 2 Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia. Electronic address: DrTomWard@um.edu.my
Carbohydr Polym, 2016 Apr 20;140:202-8.
PMID: 26876845 DOI: 10.1016/j.carbpol.2015.12.068

Abstract

This article presents an analysis of the influence of heat treatment on chitosan nanocomposite film. A series of samples comprising: pure chitosan film, chitosan film embedded with nanocrystalline cellulose (NCC), chitosan film crosslinked with tannic acid and chitosan film with a blend of NCC and tannic acid were heat treated using a convection oven. Fourier-transform-infrared spectroscopy (FTIR) and X-ray diffraction test (XRD) shows the changes in chemical interaction of the heat treated films. The heat treated films show significant improvements in moisture absorption. Tensile strength and Young's Modulus were increased up to 7MPa and 259MPa, respectively when the samples were subjected to heat treatment. For the NCC particles, a transmission electron microscope (TEM) was used to inspect the structural properties of cellulose particle in suspension form.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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