عنوان مقاله [English]
The widespread use of traditional petroleum based plastic and rubber has received considerable attention in recent years due to their environmental pollution. To overcome it, the development of new bio-degradability polymer materials to replace the petroleum based plastic and rubber is proposed. Poly (lactic acid) is one of the most well known biodegradable polymers with several favorable properties such as high strength and stiffness, being bio-based and excellent transparency. However, the inherent brittleness of PLA, limits its applications that need plastic deformation at high stress levels. Blending with a ductile polymers is the most effective and convenient way to modify Poly (lactic acid) to overcome its brittles. EVA is an elastomeric polymer with high softness and flexibility which can be blended with other polymers to increase their ductility and impact strength. The main objective of this paper is to provide a simple but effective and economic route to prepare tough Poly (lactic acid) materials based on physical melt blending of PLA with EVA copolymers. We studied enhancing the compatibility and impact strength through dynamic vulcanization of EVA and using nanoparticles.