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Mechanical and barrier properties of nanocrystalline cellulose reinforced chitosan based nanocomposite films

Authors :
Bernard Riedl
Gregory Chauve
Canh Le Tien
Ruhul A. Khan
Avik Khan
Musa R. Kamal
Monique Lacroix
Victor Tan
Jean Bouchard
Stephane Salmieri
Institut Armand Frappier (INRS-IAF)
Institut National de la Recherche Scientifique [Québec] (INRS)-Réseau International des Instituts Pasteur (RIIP)
Département des sciences du bois et de la forêt, Faculté de foresterie, géographie et géomatique
Université Laval [Québec] (ULaval)
FPInnovations
Department of Chemical Engineering [Montréal]
McGill University = Université McGill [Montréal, Canada]
This research was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) and by FPInnovations (Pointe-Claire, Canada) through the RDC program.
Source :
Carbohydrate Polymers, Carbohydrate Polymers, Elsevier, 2012, 90 (4), pp.1601-8. ⟨10.1016/j.carbpol.2012.07.037⟩
Publication Year :
2012
Publisher :
Elsevier BV, 2012.

Abstract

International audience; Nanocrystalline cellulose (NCC) reinforced chitosan-based biodegradable films were prepared by solution casting. The NCC content in the films was varied from 1 to 10% (dry wt. basis). It was found that the tensile strength (TS) of the nanocomposite films with 5% (w/w) NCC content was optimum with an improvement of 26% compared to the control chitosan films. Incorporation of NCC also significantly improved barrier properties. Water vapor permeability (WVP) of the chitosan/NCC films was decreased by 27% for the optimum 5% (w/w) NCC content. Swelling studies revealed a decrease in water uptake of the NCC-reinforced chitosan films. Analyses of thermal properties showed no significant effect of NCC whereas X-ray diffraction studies confirmed the appearance of crystalline peaks in the nanocomposite films. Surface morphology of the films was investigated by scanning electron microscopy and it was found that NCC was dispersed homogenously into chitosan matrix.

Details

ISSN :
01448617
Volume :
90
Database :
OpenAIRE
Journal :
Carbohydrate Polymers
Accession number :
edsair.doi.dedup.....dfdb30cf808d85f8ac689acfac4865dd
Full Text :
https://doi.org/10.1016/j.carbpol.2012.07.037