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

Tanzina Huq (1) , Stephane Salmieri (1) , Avik Khan (1) , Ruhul A Khan (1) , Canh Le Tien (1) , Bernard Riedl (2) , Carole Fraschini (3) , Jean Bouchard (3) , Jorge Uribe-Calderon (4) , Musa R Kamal (4) , Monique Lacroix (1)

1 INRS-IAF - Institut Armand Frappier
2 Département des sciences du bois et de la forêt, Faculté de foresterie, géographie et géomatique
3 FPInnovations
4 Department of Chemical Engineering [Montréal]

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.

Mots clés: Alginate; Nanocrystalline cellulose; Nanocomposite; Biopolymers; Morphology; Thermal properties

Domaines: Maladies infectieuses

Tanzina Huq, Stephane Salmieri, Avik Khan, Ruhul A Khan, Canh Le Tien, et al.. Nanocrystalline cellulose (NCC) reinforced alginate based biodegradable nanocomposite film.. Carbohydrate Polymers, 2012, 90 (4), pp.1757-63. ⟨10.1016/j.carbpol.2012.07.065⟩. ⟨pasteur-00818530⟩