Study on microstructure and physical properties of composite films based on chitosan and methylcellulose
- Pinotti, Adriana Noemi
- Garcia, Maria Alejandra
- Martino, Miriam Nora
- Zaritzky, Noemi Elisabet
DOIAbstract
Biodegradable films obtained from chitosan (CH) and methylcellulose (MC) can reduce environmental problems associated with synthetic packagings. Biodegradable films still need a cost reduction to be economically profitable; the use of CH, a by-product obtained from wastes of the fishing industry would be a good alternative. The objectives of the present work were to characterize physical, mechanical and water vapor barrier properties and microstructure of films of CH, MC and their mixtures. Solutions of 2% CH and 1% MC were mixed in different proportions. Films were obtained by casting. Film microstructure was characterized by SEM, X-ray diffraction and FTIR spectroscopy. Water vapor permeabilities for CH and MC films were 6.67±0.74×10−11 a...
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