Dépôt numérique

Production and properties of nanocellulose-reinforced methylcellulose-based biodegradable films

Khan, Ruhul A.; Salmieri, Stéphane; Dussault, Dominic; Uribe-Calderon, Jorge; Kamal, Musa R.; Safrany, Agnes et Lacroix, Monique ORCID logoORCID: https://orcid.org/0000-0002-2042-4033 (2010). Production and properties of nanocellulose-reinforced methylcellulose-based biodegradable films Journal of Agricultural and Food Chemistry , vol. 58 , nº 13. pp. 7878-7885. DOI: 10.1021/jf1006853.

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Methylcellulose (MC)-based films were prepared by casting from its 1% aqueous solution containing 0.5% vegetable oil, 0.25% glycerol, and 0.025% Tween 80. Puncture strength (PS), puncture deformation (PD), viscoelasticity coefficient, and water vapor permeability (WVP) were found to be 147 N/mm, 3.46 mm, 41%, and 6.34 g.mm/m(2).day.kPa, respectively. Aqueous nanocellulose (NC) solution (0.1-1%) was incorporated into the MC-based formulation, and it was found that PS was improved (117%) and WVP was decreased (26%) significantly. Films containing 0.25% NC were found to be the optimum. Then films were exposed to gamma radiation (0.5-50 kGy), and it was revealed that mechanical properties of the films were slightly decreased after irradiation, whereas barrier properties were further improved with a decrease of WVP to 28.8% at 50 kGy. Molecular interactions due to incorporation of NC were supported by FTIR spectroscopy. Thermal properties of the NC-containing films were improved, confirmed by TGA and DSC. Crystalline peaks appeared due to NC addition, found by XRD. Micrographs of films containing NC were investigated by SEM.

Type de document: Article
Mots-clés libres: -
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 30 juin 2024 21:30
Dernière modification: 30 juin 2024 21:30
URI: https://espace.inrs.ca/id/eprint/14789

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