Influence of reactive melt mixing on mechanical behavior of chain extended PLLA/thermoplastic polyurethane blends

Control of thermal degradation and melt strength of Poly (lactic acid), PLA, during melt processing while improving the toughness of the obtained samples is still a challenge for the polymer industry. Poly (L-lactide acide) (PLLA)/Thermoplastic polyurethane (TPU) blends were prepared in compositions of 70/30% and 50/50% in presence of multifunctional epoxy chain extender. A laboratory internal mixer was used to prepare the samples via reactive...