TY - JOUR AU - Nakaya, M. AU - Motomura, K. AU - Maeda, T. AU - Hotta, A. PY - 2018/01/01 TI - Gas and flavor barrier thin film coating to plastic closures JF - Quarterly Physics Review; Vol 4 No 1 (2018): Vol. 4 Issue 1, January 2018 KW - N2 - 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. UR - https://esmed.org/MRA/qpr/article/view/1590