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Low-Flammability PTFE for High-Oxygen EnvironmentsModified forming process removes volatile combustible materials. Flammability of cable-wrapping tape reduced by altering tape-manufacturing process. In new manufacturing process, tape formed by proprietary process of screw extrusion, followed by washing in solvent and drying. Tape then wrapped as before. Spectrogram taken after extrusion, washing, and drying shows lower hydrocarbon content. PTFE formed by new process suited to oxygen-rich environments. Safe in liquid oxygen of Space Shuttle tank and in medical uses; thin-wall shrinkable tubing in hospital test equipment, surgical instruments, and implants.
Document ID
19860000389
Document Type
Other - NASA Tech Brief
Authors
Walle, E. (Martin Marietta Corp.)
Fallon, B. (Martin Marietta Corp.)
Sheppard, A. (Martin Marietta Corp.)
Date Acquired
August 12, 2013
Publication Date
July 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 4
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
MFS-28127
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.