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Investigation of teflon fep embrittlement on spacecraft in low-earth orbit
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | deGroh, Kim K. Banks, Bruce A. |
| Copyright Year | 1997 |
| Description | Teflon fluorinated ethylene propylene (FEP) (DuPont) is commonly used on exterior spacecraft surfaces for thermal control in the low-Earth orbit environment. Silverized or aluminized Teflon FEP is used for the outer layers of the thermal control blanket because of its high reflectance, low solar absorptance, and high thermal emittance. Teflon FEP is also desirable because, compared with other spacecraft polymers (such as Kapton), it has relatively high resistance to atomic oxygen erosion. Because of its comparably low atomic oxygen erosion yield, Teflon FEP has been used unprotected in the space environment. Samples of Teflon FEP from the Long Duration Exposure Facility (LDEF) and the Hubble Space Telescope (retrieved during its first servicing mission) were evaluated for solar-induced embrittlement and for synergistic effects of solar degradation and atomic oxygen. |
| File Size | 18472 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050179340 |
| Archival Resource Key | ark:/13960/t6c29tt4k |
| Language | English |
| Publisher Date | 1997-03-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Degradation Spacecraft Shielding Thermal Control Coatings Low Earth Orbits Space Weathering Embrittlement Tensile Tests Hubble Space Telescope Hardness Long Duration Exposure Facility Teflon Trademark Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
