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Nanocrystalline cellulose (NCC) reinforced alginate based biodegradable nanocomposite film.

Research paper by Tanzina T Huq, Stephane S Salmieri, Avik A Khan, Ruhul A RA Khan, Canh C Le Tien, Bernard B Riedl, Carole C Fraschini, Jean J Bouchard, Jorge J Uribe-Calderon, Musa R MR Kamal, Monique M Lacroix

Indexed on: 05 Sep '12Published on: 05 Sep '12Published in: Carbohydrate Polymers



Abstract

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.