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Evaluation of Thermal Control Coatings and Polymeric Materials Exposed to Ground Simulated Atomic Oxygen and Vacuum Ultraviolet RadiationNumerous thermal control and polymeric samples with potential International Space Station applications were evaluated for atomic oxygen and vacuum ultraviolet radiation effects in the Princeton Plasma Physics Laboratory 5 eV Neutral Atomic Oxygen Facility and in the MSFC Atomic Oxygen Drift Tube System. Included in this study were samples of various anodized aluminum samples, ceramic paints, polymeric materials, and beta cloth, a Teflon-impregnated fiberglass cloth. Aluminum anodizations tested were black duranodic, chromic acid anodize, and sulfuric acid anodize. Paint samples consisted of an inorganic glassy black paint and Z-93 white paint made with the original PS7 binder and the new K2130 binder. Polymeric samples evaluated included bulk Halar, bulk PEEK, and silverized FEP Teflon. Aluminized and nonaluminized Chemfab 250 beta cloth were also exposed. Samples were evaluated for changes in mass, thickness, solar absorptance, and infrared emittance. In addition to material effects, an investigation was made comparing diffuse reflectance/solar absorptance measurements made using a Beckman DK2 spectroreflectometer and like measurements made using an AZ Technology-developed laboratory portable spectroreflectometer.
Document ID
19960029068
Acquisition Source
Marshall Space Flight Center
Document Type
Technical Publication (TP)
Authors
Kamenetzky, R. R. (NASA Marshall Space Flight Center Huntsville,AL United States)
Vaughn, J. A. (NASA Marshall Space Flight Center Huntsville,AL United States)
Finckenor, M. M. (NASA Marshall Space Flight Center Huntsville,AL United States)
Linton, R. C. (NASA Marshall Space Flight Center Huntsville,AL United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1995
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
NAS 1.60:3595
M-798
NASA-TP-3595
Accession Number
96N29631
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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