%A Nakaya, M. %A Motomura, K. %A Maeda, T. %A Hotta, A. %D 2018 %T Gas and flavor barrier thin film coating to plastic closures %K %X Abstract The gas and flavor barrier enhancement of plastic closures for food and beverage applications was attempted through thin film coating. Diamond-like carbon (DLC) thin films were formed onto the inner surface of closures, using a specific plasma-assisted chemical vapor deposition (PECVD) technique. In order to overcome the difficulty in forming a high gas barrier thin film coating onto the surface of the sealing parts of plastic closures, wet treatment using 3-aminopropyltrimethoxysilane (3APTMS) was applied in prior to DLC coating. As a result, the oxygen gas barrier of the sealing parts was significantly increased. Flavor barrier enhancement was also confirmed based on the sorption of d-limonene inside the coated sealing parts. %U https://esmed.org/MRA/qpr/article/view/1590 %J Quarterly Physics Review %0 Journal Article %V 4 %N 1 %@ 2572-701X %8 2018-01-01