(Bio) polymer/ZnO nanocomposites for packaging applications: a review of gas barrier and mechanical properties
Nanotechnology is playing a pivotal role in improving quality of life due to its versatile
applications in many areas of research. In this regard, nanoparticles have gained significant
importance. Zinc oxide nanoparticles (ZnO NPs) amongst other nanoparticles are being
used in producing nanocomposites. Methods like solvent casting, solution casting, solvent
volatilization, twin-screw extrusion, melt compounding and extrusion blow molding have
been applied to produce ZnO NPs based (bio) polymer composites. These composites are …
applications in many areas of research. In this regard, nanoparticles have gained significant
importance. Zinc oxide nanoparticles (ZnO NPs) amongst other nanoparticles are being
used in producing nanocomposites. Methods like solvent casting, solution casting, solvent
volatilization, twin-screw extrusion, melt compounding and extrusion blow molding have
been applied to produce ZnO NPs based (bio) polymer composites. These composites are …
Nanotechnology is playing a pivotal role in improving quality of life due to its versatile applications in many areas of research. In this regard, nanoparticles have gained significant importance. Zinc oxide nanoparticles (ZnO NPs) amongst other nanoparticles are being used in producing nanocomposites. Methods like solvent casting, solution casting, solvent volatilization, twin-screw extrusion, melt compounding and extrusion blow molding have been applied to produce ZnO NPs based (bio)polymer composites. These composites are of great interest in the research area of food packaging materials due to their improved multifunctional characteristics like their mechanical, barrier and antimicrobial properties. This paper gives an overview of the main methods to synthesize ZnO NPs, methods to incorporate ZnO NPs in (bio)polymers, and finally, the gas barrier and mechanical properties of the nanocomposites. As a conclusion, a maximum decline in oxygen, carbon dioxide and water vapor permeability was reported as 66%, 17% and 38% respectively, while tensile strength and young’s modulus were observed to increase by 32% and 57% respectively, for different (bio)polymer/ZnO nanocomposites.
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