INVESTIGADORES
MARCOVICH norma Esther
congresos y reuniones científicas
Título:
EDIBLE NANOCOMPOSITE FILMS BASED ON SODIUM CASEINATE AND NANOCELULOSE FIBERS
Autor/es:
MARIANA PEREDA; GUILLERMINA AMICA; ILONA RÁCZ; NORMA E. MARCOVICH
Lugar:
San José, Costa Rica
Reunión:
Simposio; XII Simposio latinoamericano de Polímeros; 2010
Institución organizadora:
Laboratorio de Polímeros de la Universidad Nacional y Laboratorio Nacional de Nanotecnología del Centro Nacional de Alta Tecnología
Resumen:
Biopolymers are attractive materials because they are biodegradable, recyclable and compostable, and are regarded as the best replacement for conventional packaging materials in respect of energy resources and environmental impact [1]. In the same way, cellulose fibres with one nano/micro scale dimension are attractive as reinforcing fillers in polymeric matrices due to their good mechanical properties with very high bending strength, and stiffness (e.g. Young’s modulus of about 150 GPa [2]). The advantages of nanocomposite materials, compared with conventional composites, are their superior thermal, mechanical and barrier properties even at very low reinforcement content (< 5 wt%), added to a better recyclability and low weight [3]. In this perspective, it is interesting to study the behavior of nanocomposites based on natural resources. Thus, the focus of this work is to prepare and characterize films based on glycerol-plasticized sodium caseinate (SC) and nanocellulose (NC) fibers.