info:eu-repo/semantics/article
Carboxymethylcellulose–montmorillonite nanocomposite films activated with murta (Ugni molinae Turcz) leaves extract
Fecha
2012-01Registro en:
Quilaqueo Gutiérrez, Marcela; Echeverría, Ignacio; Ihl, Mónica; Bifani, Valerio; Mauri, Adriana Noemi; Carboxymethylcellulose–montmorillonite nanocomposite films activated with murta (Ugni molinae Turcz) leaves extract; Elsevier; Carbohydrate Polymers; 87; 2; 1-2012; 1495-1502
0144-8617
CONICET Digital
CONICET
Autor
Quilaqueo Gutiérrez, Marcela
Echeverría, Ignacio
Ihl, Mónica
Bifani, Valerio
Mauri, Adriana Noemi
Resumen
The functionality of nanocomposite films based on carboxymethylcellulose (CMC) and montmorillonite (MMT) activated with murta (Ugni molinae Turcz) leaves extract was studied. Films were prepared by casting from film-forming dispersions containing CMC, glycerol (used as plasticizer) and different concentrations of MMT, using water or murta extract as solvent. The addition of MMT increased the tensile strength and the elasticity modulus of the films, and decreased their permeabilities to water vapor, oxygen and carbon dioxide. Besides the antioxidants properties provided to the films, the addition of murta leaves extract changed the gas permeability in different forms according to the MMT content, and plasticized the nanocomposite matrix.