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The utilization of biopolymers as a packaging material has received enormous attention, owing to the arising pressure on global warming and environmental pollution. Polylactic acid (PLA) is identified as a promising biopolymer with good processability amidst other biopolymers. However, due to its poor barrier property and brittle nature, its use is limited. To alleviate the properties of polymer composites, plasticization and reinforcement with nanoparticles are carried out in this study. Nanoparticles derived from naturals resources (almond shell wastes) are utilized for the present research due to the ecological concerns associated toward the usage of synthetic nanoparticles. Almond shell nanoparticles with an average particle size of 197 nm were prepared by ball milling and then ultrasonication. The influence of plasticizers, such as glycerol, sorbitol, polyethylene glycol, clove oil and polycaprolactone on the …