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

Autor: Bernard Riedl, Gregory Chauve, Canh Le Tien, Ruhul A. Khan, Avik Khan, Musa R. Kamal, Monique Lacroix, Victor Tan, Jean Bouchard, Stephane Salmieri
Přispěvatelé: 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.
Rok vydání: 2012
Předmět:
Materials science
Polymers and Plastics
Scanning electron microscope
Mechanical properties
Nanocomposite films
02 engineering and technology
010402 general chemistry
01 natural sciences
Nanocomposites
Chitosan
chemistry.chemical_compound
Microscopy
Electron
Transmission
X-Ray Diffraction
Tensile Strength
Spectroscopy
Fourier Transform Infrared
Ultimate tensile strength
Materials Chemistry
medicine
Composite material
Cellulose
[SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases
Barrier properties
Nanocomposite
Organic Chemistry
Nanocrystalline cellulose
021001 nanoscience & nanotechnology
Casting
Nanocrystalline material
0104 chemical sciences
Steam
chemistry
Chemical engineering
Microscopy
Electron
Scanning
Biodegradable
Swelling
medicine.symptom
0210 nano-technology
Zdroj: Carbohydrate Polymers
Carbohydrate Polymers, Elsevier, 2012, 90 (4), pp.1601-8. ⟨10.1016/j.carbpol.2012.07.037⟩
ISSN: 0144-8617
DOI: 10.1016/j.carbpol.2012.07.037
Popis: 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.
Databáze: OpenAIRE
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