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effects of ldef flight exposure on selected polymer matrix resin composite materialsThe characterization of selected graphite fiber reinforced epoxy and polysulfone matrix resin composites which received exposure to the LEO environment on the LDEF is reported. The changes in mechanical properties of ultimate tensile strength and tensile modulus for exposed flight specimens are compared to the three sets of control specimens. Marked changes in surface appearance are discussed, and resin loss is reported. The chemical characterization including IR, thermal, and selected solution property measurements showed that the molecular structure of the polymeric matrix had not changed significantly in response to this exposure.
Document ID
19910015739
Document Type
Conference Paper
Authors
Slemp, Wayne S.
(NASA Langley Research Center Hampton, VA., United States)
Young, Philip R.
(NASA Langley Research Center Hampton, VA., United States)
Witte, William G., Jr.
(NASA Langley Research Center Hampton, VA., United States)
Shen, James Y.
(Lockheed Engineering and Sciences Co. Hampton, VA., United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: First LDEF Post-Retrieval Symposium Abstracts
Subject Category
COMPOSITE MATERIALS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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