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Evaluation of non-specular reflecting silvered Teflon and filled adhesivesA non-specular silver-Teflon tape thermal control coating was tested to provide the data necessary to qualify it for use on the Space Shuttle Orbiter radiators. Effects of cure cycle temperature and pressure on optical and mechanical properties on the silver-Teflon tape were evaluated. The baseline Permacel P-223 adhesive, used with the specular silver-Teflon tape initially qualified for the Orbiter radiators, and four alternate metal-filled and unfilled adhesives were evaluated. Tests showed the cure process has no effect on the silver-Teflon optical properties, and that the baseline adhesive cure cycle gives best results. In addition the P-223 adhesive bond is more reproducible than the alternates, and the non-specular tape meets both the mechanical and the optical requirements of the Orbiter radiator coating specification. Existing Orbiter coating techniques were demonstrated to be effective in aplying the non-specular tape to a curved panel simulating the radiators. Author
Document ID
19810023654
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Bourland, G.
(Vought Corp. Dallas, TX, United States)
Cox, R. L.
(Vought Corp. Dallas, TX, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1981
Publication Information
Publisher: NASA, Langley Research Center
Subject Category
Composite Materials
Report/Patent Number
NASA-CR-165657
Report Number: NASA-CR-165657
Accession Number
81N32197
Funding Number(s)
CONTRACT_GRANT: NAS1-14672
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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