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Improvement of the plasma treatment effect on PET with a newly designed atmospheric pressure plasma jet
Author(s) -
Onyshchenko Iuliia,
De Geyter Nathalie,
Morent Rino
Publication year - 2017
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.201600200
Subject(s) - materials science , polyethylene terephthalate , multiphysics , jet (fluid) , x ray photoelectron spectroscopy , plasma , atmospheric pressure plasma , argon , surface modification , contact angle , plasma cleaning , capillary action , injector , atmospheric pressure , analytical chemistry (journal) , composite material , mechanics , atomic physics , chemistry , mechanical engineering , physics , nuclear magnetic resonance , nuclear physics , chromatography , finite element method , meteorology , thermodynamics , engineering
In this work, two different plasma jet designs (typical design and with geometrical modification) operating in argon are used to examine the influence of the additional plate on the created hydrophilic polyethylene terephthalate (PET) region. The surface analyses techniques (contact angle measurements and X‐ray photoelectron spectroscopy [XPS]) clearly show that the introduction of an additional plate in the plasma jet set‐up only has a significant impact on the hydrophilic footprint when using a small capillary‐sample distance of 2 mm. Comsol Multiphysics is used to explain the effect of the plasma jet design modification on the hydrophilic footprint. The simulations reveal a completely different gas flow pattern for the set‐up with the modified geometry.