Sharmin, Nusrat; Khan, Ruhul A.; Salmieri, Stephane; Dussault, Dominic; Bouchard, Jean et Lacroix, Monique 
ORCID: https://orcid.org/0000-0002-2042-4033
(2012).
Modification and Characterization of Biodegradable Methylcellulose Films with Trimethylolpropane Trimethacrylate (TMPTMA) by γ Radiation: Effect of Nanocrystalline Cellulose
Journal of Agricultural and Food Chemistry
, vol. 60
, nº 2.
pp. 623-629.
DOI: 10.1021/jf203500s.
Résumé
Methylcellulose (MC)-based films were prepared by solution casting from its 1% aqueous suspension containing 0.25% glycerol. Trimethylolpropane trimethacrylate (TMPTMA) monomer (0.1-2% by wt) along with the glycerol was added to the MC suspension. The films were cast and irradiated from a radiation dose varied from 0.1 to 10 kGy. Then the mechanical properties such as tensile strength (TS), tensile modulus (TM), and elongation at break (Eb) and barrier properties of the films were evaluated. The highest TS (47.88 PMa) and TM (1791.50 MPa) of the films were found by using 0.1% monomer at 5 kGy dose. The lowest water vapor permeability (WVP) of the films was found to be 5.57 ġ mm/m(2)̇daẏkPa (at 0.1% monomer and 5 kGy dose), which is 12.14% lower than control MC-based films. Molecular interactions due to incorporation of TMPTMA were supported by FTIR spectroscopy. A band at 1720 cm(-1) was observed due to the addition of TMPTMA in MC-based films, which indicated the typical (C(box drawings double horizontal)O) carbonyl stretching. For the further improvement of the mechanical and barrier properties of the film, 0.025-1% nanocrystalline cellulose (NCC) was added to the MC-based suspension containing 1% TMPTMA. Addition of NCC led to a significant improvement in the mechanical and barrier properties. The novelty of this investigation was to graft insoluble monomer using γ radiation with MC-based films and use of biodegradable NCC as the reinforcing agent.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | methyl cellulose; trimethylolpropane; trimethacrylate; biodegradable; films; nanocrystalline; cellulose; packaging materials |
| Centre: | Centre INRS-Institut Armand Frappier |
| Date de dépôt: | 09 mars 2024 17:58 |
| Dernière modification: | 09 mars 2024 18:01 |
| URI: | https://espace.inrs.ca/id/eprint/14088 |
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