Effect of Zinc Oxide Nanoparticles on Barrier and Mechanical Properties of EVOH Nanocomposite film Incorporating with Plasticizer

Abstract

In this study, ethylene vinyl alcohol copolymer (EVOH) nanocomposite was prepared by adding nano zinc oxide (nano-ZnO) as a filling agent and glycerol as a plasticizer. In the solution mixing method, usually a plasticizer is used to prevent the film from becoming brittle. However, adding a plasticizer also has adverse effects on the film. Examples of such effects include; decreased barrier properties (water vapor permeability and oxygen permeability) and reduced mechanical properties (tensile strength (TS)). The goal of this study was, to reduce the adverse effects of the plasticizer on film's matrix by adding nanoparticles. Three concentrations (0%, 1%, and 2%) of Nano-ZnO were used in order to find the optimum concentration of glycerol (30%, 40%, and 50%) with the least significant adverse effect. Incorporating glycerol reduced the barrier and the tensile strength properties in matrix films, while, adding nano-ZnO improved barrier, tensile strength properties and reduced adverse effects of the glycerol. FE-SEM image analysis was used to confirm the adverse effects of glycerol on matrix film.

Fabrication of biodegradable chicken feathers into ecofriendly-functionalized biomaterials: characterization and bio-assessment study

“…The coated HSP exhibited a good ORB (130–600 s) compared with the uncoated HSP (80 s). Coatings based on SEDCFs are highly lipophilic materials, such that hygroscopic oil does not dissolve in its HSP, leading to excellent ORB 65 . The oil resistance of paper coated with different SEDCFs concentration exhibited good oil resistance as the SEDCFs concentration increased from (1–3%) due to the high hydrophobicity of it, which meets the demands for food packaging.…”

“…The oil resistance of paper coated with different SEDCFs concentration exhibited good oil resistance as the SEDCFs concentration increased from (1–3%) due to the high hydrophobicity of it, which meets the demands for food packaging. Several studies were reported, the addition of active materials as coated part enhance their ORB as cellulose nanofibers/chitosan nanoparticles 65 , HSP/ZnO/SiO2 58 and HSP/Microcrystalline Wax Emulsion 66 .…”