Síntesis y caracterización de nanopartículas de ferrita de cobalto obtenidas en una plantilla de alúmina porosa bajo condiciones de confinamiento
- Danila Merino
- Yamila Mansilla
- Claudia Casalongué
- Vera Alvarez
ISSN: 0718-8706
Année de publication: 2016
Volumen: 7
Número: 3
Pages: 31-43
Type: Article
D'autres publications dans: Avances en Ciencias e Ingeniería
Résumé
PLA-Chitosan films compatibilized with hexamethylenediisocyanate (HDI) were obtained by casting and subsequent hot pressing. The films were prepared with different contents of chitosan (CS) and then its physicochemical properties were studied by Fourier Transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), optical microscopy (OM) and X-ray diffraction (XRD). It was found that the compatibilizing agent reacts completely and that chitosan affects the thermal properties of the films decreasing their decomposition temperatures, glass transition temperature (Tg) and melting (Tm) and increase its crystallinity. From the functional standpoint, antimicrobial properties of each blend were tested against Pseudomonas syringae pv tomato DC-3000. The increase in chitosan content was proportional to the antimicrobial effect allowing project its potential application in the agronomic field.