| Antimicrobial ceramic hybrid films for keep-freshness packaging with fluorinated illite particles |
| Dong Min Seong, Jeong Ho Chang |
| Center for Convergence Bioceramic Materials , Korea Institute of Ceramic Engineering and Technology (KICET) , Chungbuk 28160 , South Korea |
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Received: December 25, 2020; Revised: February 8, 2021 Accepted: March 5, 2021. Published online: July 31, 2021. |
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| ABSTRACT |
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This work reports the preparation of a ceramic hybrid film for keep-freshness with enhanced oxygen and moisture permeability, and antimicrobial properties using fluorine-coated illite (F-illite) and low-density polyethylene (LDPE) resin. Before the fi lm was manufactured, a master batch of F-illite and LDPE was prepared through an extruder, and a large amount of LDPE resin was mixed to produce a film containing 4wt% F-illite. The amount and dispersity of the F-illite in the LDPE matrix were confi rmed by TGA, wide-angle XRD and SEM analysis. As a result, the F-illite hybrid fi lms had an oxygen transmission rate (OTR) of 13,430 mL/m2 ؚday), which is higher than 10,309 mL/m2 ؚday of the general LDPE film. Moreover, the water vapor transmission rate (WVTR) was 20.13 g/m2, which was higher than that of the general LDPE fi lm 16.13 g/m2·day. In addition, the F-illite hybrid film showed more than 99% antibacterial activity against S. aureus. |
| Key words:
Antimicrobial · Fluorine-coated illite · Film · Oxygen transmission rate · Water vapor transmission rate |
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