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Silicon Oxide Permeation Barrier Coating and Plasma Sterilization of PET Bottles and Foils
Author(s) -
Deilmann Michael,
Halfmann Helmut,
Steves Simon,
Bibinov Nikita,
Awakowicz Peter
Publication year - 2009
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200930907
Subject(s) - permeation , materials science , coating , polyethylene terephthalate , sterilization (economics) , plasma , oxide , plasma etching , silicon oxide , chemical engineering , polyethylene , etching (microfabrication) , silicon , composite material , membrane , optoelectronics , chemistry , metallurgy , layer (electronics) , biochemistry , physics , silicon nitride , quantum mechanics , monetary economics , economics , foreign exchange market , engineering , foreign exchange
The results of silicon oxide permeation barrier coating and plasma sterilization are shown using a low‐pressure microwave plasma reactor system based on a Plasmaline antenna developed for the treatment of polyethylene terephthalate bottles and foils. The influence of the coating composition on the barrier properties is analyzed and a good correlation is found. The optimized barrier coatings are analyzed regarding coating defects, which are visualized by means of capacitively coupled oxygen plasma etching of the coated substrates. The capabilities of plasma sterilization are exemplarily demonstrated for spores of Bacillus atrophaeus allowing for a spore reduction according to today's regulations for aseptic food packaging.