Journal
CARBOHYDRATE POLYMERS
Volume 90, Issue 4, Pages 1757-1763Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.07.065
Keywords
Alginate; Nanocrystalline cellulose; Nanocomposite; Biopolymers; Morphology; Thermal properties
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- FPInnovations (Pointe-Claire, Quebec, Canada) through the RDC program
- Fondation Armand-Frappier
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Nanocrystalline cellulose (NCC) reinforced alginate-based nanocomposite film was prepared by solution casting. The NCC content in the matrix was varied from 1 to 8% ((w/w) % dry matrix). It was found that the nanocomposite reinforced with 5 wt% NCC content exhibits the highest tensile strength which was increased by 37% compared to the control. Incorporation of NCC also significantly improved water vapor permeability (WVP) of the nanocomposite showing a 31% decrease due to 5 wt% NCC loading. Molecular interactions between alginate and NCC were supported by Fourier Transform Infrared Spectroscopy. The X-ray diffraction studies also confirmed the appearance of crystalline peaks due to the presence of NCC inside the films. Thermal stability of alginate-based nanocomposite films was improved after incorporation of NCC. (C) 2012 Elsevier Ltd. All rights reserved.
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