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Reduction of Plasticizer Leaching from PVC by Barrier Coatings Deposited Using DBD Processes at Atmospheric Pressure
Author(s) -
Barreto Mercedes Cerezuela,
Borris Jochen,
Thomas Michael,
Hänsel Renate,
Stoll Michael,
Klages ClausPeter
Publication year - 2012
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.201200005
Subject(s) - hexamethyldisiloxane , dielectric barrier discharge , plasticizer , octamethylcyclotetrasiloxane , materials science , atmospheric pressure , leaching (pedology) , coating , chemical engineering , atmospheric pressure plasma , plasma polymerization , volumetric flow rate , composite material , monomer , polymer , plasma , dielectric , polymer chemistry , oceanography , physics , optoelectronics , environmental science , engineering , quantum mechanics , soil science , soil water , geology
Barrier coatings against plasticizer leaching are deposited on flexible polyvinylchloride (PVC) films typically used in flooring or in the automotive industry. Octamethylcyclotetrasiloxane (OMCTS) and hexamethyldisiloxane (HMDSO) are plasma polymerized using plasma‐activated CVD (PA‐CVD) based on an atmospheric pressure (AP) dielectric barrier discharge (DBD). A reduction in plasticizer leaching higher than 80% is achieved with these coatings. The effect of the monomer flow rate, discharge power, and oxygen flow rate on the barrier efficiency is investigated. The coating composition of the best barrier coating has been identified and the long‐time barrier efficiency in contact with an organic solvent has been studied.