Biodegradable Films Based on Gelatin and Montmorillonite Produced by Spreading

The main objective of this research was to study the properties of gelatin-based nanocomposites reinforced with the montmorillonite (MMT). The gelatin-based nanocomposites were prepared with solutions of 5 g of gelatin/100 g of film-forming solution, 0–10 g of montmorillonite/100 g of gelatin, and 3...

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Bibliographic Details
Published in:International journal of polymer science 2015-01, Vol.2015 (2015), p.1-9
Main Authors: Bittante, Ana Mônica Quinta Barbosa, Caicedo Flaker, Christian Humberto, Alexandre, Elisabete M. C., Coronado Jorge, Manuel Fernando, Sobral, Paulo José do Amaral
Format: Article
Language:English
Subjects:
Environmental impact
Fourier transforms
Gelatins
Glycerol
Mechanical properties
Moisture content
Molecular weight
Montmorillonite
Nanocomposites
Phase transitions
Physical properties
Proteins
Reinforcement
Relative humidity
Scanning electron microscopy
Spectra
Studies
Thermal properties
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Summary:The main objective of this research was to study the properties of gelatin-based nanocomposites reinforced with the montmorillonite (MMT). The gelatin-based nanocomposites were prepared with solutions of 5 g of gelatin/100 g of film-forming solution, 0–10 g of montmorillonite/100 g of gelatin, and 30 g of glycerol/100 g of gelatin and were stored for 7 days at 58% relative humidity or in silica gel, depending on the type of assay. The reinforcement of gelatin-based nanocomposites with montmorillonite increased their thickness and decreased the moisture content. Tensile strength and Young’s modulus increased revealing more resistant and rigid nanocomposites. The increase in MMT concentration slightly changed the X-ray diffraction spectra indicating some loss of crystallinity and reinforced films presented less homogeneous structures. The montmorillonite concentration had not a clear effect on the thermal properties and FTIR spectra of nanocomposites were very similar to separated compounds.
ISSN:1687-9422
1687-9430
DOI:10.1155/2015/806791