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- Title
Physiochemical and Barrier Properties of Polyvinyl alcohol/chitosan/TEMPO-oxidized Cellulose Nanofibers Composite Films.
- Authors
CHOO, K. W.; CHING, Y. C.; CHUAH, C. H.
- Abstract
In this present work, microcrystalline cellulose (MCC) was oxidized by TEMPO-mediated oxidation, followed by mechanical homogenization to form a transparent dispersion which consisted of individual TEMPO-mediated oxidized cellulose nanofibers (TOCNs). Various amounts of TOCNs were incorporated into PVA/CS composites using solution casting method to produce bionanocomposite films. Differential scanning calorimetry (DSC) analysis proved that the TOCNs and PVA/CS composites are miscible due to the strong intermolecular bonding. TOCNs improved the barrier properties of the PVA/CS composites by decreasing the water vapor transmission rate (WVTR), oxygen permeability (OP) and swelling property. From optical transmittance study, the bio-nanocomposite films indicated good optical light transparency due to the homogeneous dispersion of nano-filler within PVA/CS composites upon the addition of 1.0 wt% of TOCNs. Due to their excellent physiochemical and barrier properties, the reinforcement of TOCNs into PVA/CS composite was an effective method to produce a transparent bio-nanocomposite material for food packaging application.
- Publication
Journal of Polymer Materials, 2017, Vol 34, Issue 1, p223
- ISSN
0973-8622
- Publication type
Academic Journal