Sustainable Microwave Synthesis Of Biodegradable Active Packaging Films Based On Polycaprolactone And Layered Zno Nanoparticles
POLYMER DEGRADATION AND STABILITY(2021)
摘要
Sustainable nanocomposites based on biodegradable polycaprolactone (PCL) matrix and ZnO nanoparticles (ZnONPs) functionalized with ionic liquid (IL) were prepared via bulk in-situ ring opening polymerization of epsilon-caprolactone (epsilon CL). PCL-ZnONPs nanocomposite films were examined in terms of mechanical, thermal and barrier properties. The influence of ZnONPs on the potential antimicrobial effect and biodegradation of PCL-ZnONPs films was investigated. Introduction of IL-ZnONPs NPs (3.0 wt%) into PCL matrix resulted in significant decrease of water vapor permeation (46%), induced bactericidal effect against food-born pathogenic bacterium E.coli and enhanced biodegradation rate of the prepared nanocomposite film. Therefore, these materials present high application potential as active bio-packaging films, e.g. for food storage. (C) 2021 Elsevier Ltd. All rights reserved.
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关键词
Biodegradable packaging, Polycaprolactone, Nanocomposites, Ionic liquids, Microwaves, In-situ ring opening polymerization
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