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Biodegradable Films Based on Gelatin and Montmorillonite Produced by Spreading

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Author(s):
Coronado Jorge, Manuel Fernando ; Alexandre, Elisabete M. C. ; Caicedo Flaker, Christian Humberto ; Quinta Barbosa Bittante, Ana Monica ; do Amaral Sobral, Paulo Jose
Total Authors: 5
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF POLYMER SCIENCE; v. 2015, p. 9-pg., 2015-01-01.
Abstract

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. (AU)

FAPESP's process: 13/07914-8 - FoRC - Food Research Center
Grantee:Bernadette Dora Gombossy de Melo Franco
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 11/15784-1 - Study of the dispersion of nanoparticles in water and its effect on properties of gelatin-based nanocomposits
Grantee:Christian Humberto Caicedo Flaker
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 13/25907-9 - Development of nanocomposites with active principles added as nanoemulsion
Grantee:Elisabete Maria da Cruz Alexandre
Support Opportunities: Scholarships in Brazil - Post-Doctoral