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http://dx.doi.org/10.20909/kopast.2016.22.3.85

Preparation and Characterization of Low Density Polyethylene (LDPE) and Flower-like Zinc Oxide (FZnO) Composite Films  

Kim, Insoo (Department of Packaging, Yonsei University)
Lee, Hojun (Department of Packaging, Yonsei University)
Kim, Dowan (Department of Packaging, Yonsei University)
Seo, Jongchul (Department of Packaging, Yonsei University)
Publication Information
KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY / v.22, no.3, 2016 , pp. 85-93 More about this Journal
Abstract
Flower-like zinc oxide (FZnO) was successfully synthesized via a sonochemical process. The chemical structure, morphology, and antimicrobial properties of as- prepared FZnO were investigated. Additionally, pure LDPE and five different LDPE/FZnO composite films were prepared with different FZnO content by using a twin screw extruder. According to the FTIR and SEM analyses, there exists weak interfacial interaction between LDPE and FZnO. Compared with pure LDPE, the LDPE/FZnO composite films showed UV barrier and enhanced antimicrobial activity against Escherichia coli (E. coli) as a Gram-negative micro-organism and Staphylococcus aureus (S. aureus) as a Gram-positive micro-organism. To enhance the interfacial interaction and good dispersion of FZnO into the LDPE matrix, and resultantly to such as UV barrier and antimicrobial properties of LDPE/FZnO composite films as the packaging materials, further efforts are required.
Keywords
Flower-like zinc oxide; Sonochemical synthesis; Composite films; UV barrier; Antimicrobial properties;
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