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Physicochemical and Mechanical Properties of Gelatin Reinforced with Nanocellulose and Montmorillonite

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Organic rodlike cellulose nanocrystals extracted from sisal fibers and inorganic montmorillonite based on silicate layers were employed to develop bionanocomposites based on gelatin matrix. Bionanocomposites with cellulose nanocrystal, montmorillonite and both nanoreinforcements combined were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis and differential scanning calorimetry. Tensile properties and oxygen and water vapor gas permeability values were determined to study the influence of the addition of nanoreinforcements, different in nature, to gelatin matrix. Bionanocomposites with montmorillonite improved tensile strength but systems reinforced with nanocellulose showed lower tensile strength than neat gelatin ones. Oxygen gas permeability values decreased for all bionanocomposites, especially for montmorillonite systems; however, after the incorporation of reinforcements water vapor permeability increased.
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Keywords: BARRIER PROPERTIES; GELATIN; MONTMORILLONITE; NANOCELLULOSE

Document Type: Research Article

Publication date: 07 June 2016

This article was made available online on 15 April 2016 as a Fast Track article with title: "Physicochemical and Mechanical Properties of Gelatin Reinforced with Nanocellulose and Montmorillonite".

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