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Interaction of Argon, Hydrogen and Oxygen Plasma Early Afterglow with Polyvinyl Chloride (PVC) Materials
Author(s) -
Kregar Zlatko,
Bišćan Marijan,
Milošević Slobodan,
Mozetič Miran,
Vesel Alenka
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.201200062
Subject(s) - afterglow , argon , plasma , analytical chemistry (journal) , spectrometer , pyrometer , materials science , hydrogen , radiative transfer , polyvinyl chloride , atomic physics , chemistry , optics , temperature measurement , composite material , physics , gamma ray burst , organic chemistry , quantum mechanics , astronomy , chromatography
Samples of PVC foils are exposed to an early afterglow of gaseous plasma created by an electrode‐less RF discharge in predominant H‐mode using Ar, H 2 and O 2 gases. Sample temperature is measured with a pyrometer while the presence of reaction products is determined with an optical spectrometer. The temporal evolution of major radiative species is measured. The results show that the samples are rather immune to the Ar afterglow. H 2 afterglow causes substantial heating of the sample due to heterogeneous surface recombination of H‐atoms, while O 2 plasma treatment results in etching of the material which is substantial already at room temperature. The specific behaviour of reactive species is explained by taking into account spectrometer calibration curves, excitation energies and radiative species lifetimes.