Abstract
Growing demands for increased shelf-life of food products and chemical inertia of the contact surfaces have stimulated development of polymers with improved high-barrier properties. Our objectives in this article are (1) to describe experimental results on Plasma-enhanced chemical vapor deposition (PECVD) and its importance to produce thin layers of inorganic glassy barrier materials for food, pharmaceutical, and organic display applications; (2) despite the thereby greatly enhanced quality of film or rigid packaging material, some residual coating defects result in less-than-perfect gas, moisture and aroma barriers: an innovative technique based on reactive ion etching (RIE) in oxygen plasma is also presented, along with a staining method, which render even sub-μm coating defects visible. Data are shown for oxygen transmission rate on virgin and defective coatings, and the industrial context and applications are presented.
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Czeremuszkin, G., Latrèche, M., Wertheimer, M.R. et al. Ultrathin Silicon-Compound Barrier Coatings for Polymeric Packaging Materials: An Industrial Perspective. Plasmas and Polymers 6, 107–120 (2001). https://doi.org/10.1023/A:1011308919705
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DOI: https://doi.org/10.1023/A:1011308919705