Journal
CARBOHYDRATE POLYMERS
Volume 105, Issue -, Pages 285-292Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.01.057
Keywords
Hybrid nanocomposites; Cellulose nanocrystals; Silver nanoparticles
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Hydroxypropyl methyl cellulose (HPMC) based hybrid nanocomposites reinforced with bacterial cellulose nanocrystals (BCNC) and silver nanoparticles (AgNPs) had been prepared and characterised. BCNC was capable of improving the tensile strength and modulus of HPMC, but they made the film more brittle. The addition of AgNPs along with BCNC, helped to regain some of the lost elongation properties without affecting other properties. Moisture sorption analysis proved that the hydrophilicity of the nanocomposite decreased considerably by the addition of these nanomaterials. Several mathematical models were also used to fit the experimental sorption results. A unique combination of two nanomaterials was highly effective in overcoming certain limitations of nanocomposites which uses only one type of nanomaterial. This type of hybrid nanocomposites with superior properties is expected to be useful in eco-friendly food packaging applications. (C) 2014 Elsevier Ltd. All rights reserved.
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