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ESCA study of several fluorocarbon polymers exposed to atomic oxygen in low earth orbit or within or downstream from a radio-frequency oxygen plasmaThe ESCA (electron spectroscopy for chemical analysis) spectra of films of Tedlar, tetrafluoroethylene-hexafluoropropylene copolymer (in the form of a Teflon FEP coating on Kapton H, i.e., Kapton F), and polytetrafluoroethylene (Teflon or Teflon TFE), exposed to atomic oxygen O(3P) either in LEO on the STS-8 Space Shuttle or within or downstream from a radio-frequency oxygen plasma, were compared. The major difference in surface chemistry of Tedlar induced by the various exposures to O(3P) was a much larger uptake of oxygen when etched either in or out of the glow of an O2 plasma than when etched in LEO. In contrast, Kapton F exhibited very little surface oxidation during any of the three different exposures to O(3P), while Teflon was scarcely oxidized.
Document ID
19900034850
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Golub, Morton A.
(NASA Ames Research Center Moffett Field, CA, United States)
Wydeven, Theodore
(NASA Ames Research Center Moffett Field, CA, United States)
Cormia, Robert D.
(Surface Science Laboratories Mountain View, CA, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: Polymer
Volume: 30
ISSN: 0032-3861
Subject Category
Nonmetallic Materials
Accession Number
90A21905
Distribution Limits
Public
Copyright
Other

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