Development of packaging based on PLA/POE/SeNPs nanocomposites by blown film extrusion method: Physicochemical, structural, morphological and antioxidant properties

The aim of the current study was to prepare a novel and biodegradable polylactic acid (PLA) film by the addition of different concentrations of polyolefin elastomer (POE; 10, 20 and 30 wt%), selenium nanoparticles (SeNPs; 1.5 wt%) and triethyl citrate (TEC) as plasticizer in order to modify physical and mechanical properties of the film. The SeNP with mean particle diameter of 170 nm was successfully prepared by using ascorbic acid and polyvinyl alcohol as the reducing and binding agent. The FT-IR results showed new chemical interactions among PLA matrix and incorporated POE and SeNPs. Tensile strength and Young’s Modulus of the nanocomposite films decreased by adding SeNPs and POE, whereas the elongation at break of the films significantly increased (p