Thin-Film Coated Plastic Wrap for Food Packaging

Hsin-Yu Wu; Ting-Xuan Liu; Chia-Hsun Hsu; Yun-Shao Cho; Zhi-Jia Xu; Shu-Chuan Liao; Bo-Han Zeng; Yeu-Long Jiang; Shui-Yang Lien

doi:10.3390/ma10070821

Thin-Film Coated Plastic Wrap for Food Packaging

Materials (Basel). 2017 Jul 18;10(7):821. doi: 10.3390/ma10070821.

Authors

Hsin-Yu Wu¹, Ting-Xuan Liu², Chia-Hsun Hsu³, Yun-Shao Cho⁴, Zhi-Jia Xu⁵, Shu-Chuan Liao^{6

7}, Bo-Han Zeng⁸, Yeu-Long Jiang⁹, Shui-Yang Lien¹⁰

Affiliations

¹ Graduate Institute of Optoelectronic Engineering and Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, Taiwan. xinmarchentic@gmail.com.
² Department of Electrical Engineering, Da-Yeh University, Chunghua 51591, Taiwan. yljiang@nchu.edu.tw.
³ Department of Materials Science and Engineering, Da-Yeh University, Chunghua 51591, Taiwan. f0003209@gmail.com.
⁴ Department of Materials Science and Engineering, Da-Yeh University, Chunghua 51591, Taiwan. cstcaptive@gmail.com.
⁵ Department of Materials Science and Engineering, Da-Yeh University, Chunghua 51591, Taiwan. ysc@mail.dyu.edu.tw.
⁶ Bachelor Program for Design and Materials for Medical Equipment and Devices, Da-Yeh University, Changhua 51591, Taiwan. s313326229@gmail.com.
⁷ Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan. s313326229@gmail.com.
⁸ Bachelor Program for Design and Materials for Medical Equipment and Devices, Da-Yeh University, Changhua 51591, Taiwan. liaozizi@mail.dyu.edu.tw.
⁹ Graduate Institute of Optoelectronic Engineering and Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, Taiwan. z0978588769@gmail.com.
¹⁰ Department of Materials Science and Engineering, Da-Yeh University, Chunghua 51591, Taiwan. syl@mail.dyu.edu.tw.

Abstract

In this study, the antimicrobial property and food package capability of polymethylpentene (PMP) substrate with silicon oxdie (SiO_x) and organic silicon (SiC_xH_y) stacked layers deposited by an inductively coupled plasma chemical vapor deposition system were investigated. The experimental results show that the stacked pair number of SiO_x/SiC_xH_y on PMP is limited to three pairs, beyond which the films will crack and cause package failure. The three-pair SiO_x/SiC_xH_y on PMP shows a low water vapor transmission rate of 0.57 g/m²/day and a high water contact angle of 102°. Three-pair thin-film coated PMP demonstrates no microbe adhesion and exhibits antibacterial properties within 24 h. Food shelf life testing performed at 28 °C and 80% humidity reports that the three-pair thin-film coated PMP can enhance the food shelf-life to 120 h. The results indicate that the silicon-based thin film may be a promising material for antibacterial food packaging applications to extend the shelf-life of food products.

Keywords: food package; inductively coupled plasma chemical vapor deposition; polymethylpentene; shelf-life; water vapor transmission rate.