Effect of plasticizers on the mechanical properties of PLA containers prepared by thermoforming

ANDRES TORRES NICOLINI; PATRICIA CINELLI; LEANDRO LUDUEÑA; GONZALO DASSO; VERA ALVAREZ

Mar del Plata

Simposio; XVI Latin-American Polymer Symposium (SLAP 2018), XIV Iberoamerican Polymer Congress (CIP 2018); 2018

Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA)

Biodegradable polymers have been increasingly used in the last years as packaging materials1. Due to its high biodegradability and low production costs, polylactic acid (PLA) is a highly requested polymer for the preparation of biodegradable polymer products2. In the present work, several blends of PLA with polyadipate ester as plasticizer (Glyplast 206/3NL, GL), (Glypast OLA2, OLA2), cellulose nanofibers (CNF) as reinforcement and an additive for the improvement of elongational viscosity (Biostrenght 700, BST) in various proportions have been prepared. Mechanical tensile tests and melt flow index were carried out.