INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Characterization of polylactic acid/ethylvinylacetate/cellulose composites
Autor/es:
MD. MINHAZ-ULHAQUE; MARIANO PRACELLA; VERA A. ALVAREZ; ANALIA VAZQUEZ
Lugar:
Gramado, Brasil
Reunión:
Conferencia; ISNAPOL 2010; 2010
Institución organizadora:
ABPOL
Resumen:
In this work we have studied the effect of ethylene vinyl acetate (EVA) on the thermal and mechanical properties of polylactic acid (PLA). EVA copolymers, due to their important rubber and resin properties are used for various applications, such as packaging films, adhesives/paper coatings, wire and cable insulation, barrier sheets; nevertheless, the properties of EVA composites have been little studied. So that, we have also incorporated modified cellulose fibers (Cell) and have studied the final properties of ternary composites: PLA/ EVA/Cell. It was observed that tensile strength and Young’s modulus decreased as a function of EVA content whereas for elongation at break a perfect exponential growth correlation was found. A similar trend was besides found for composites. In addition, tensile modulus has a little increase with fibre content. The effects of EVA and cellulose on glass transition, melting and crystallization temperatures (Tg, Tm and Tc respectively) were also analyzed