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Characterization of aging effects of LARC-160Specimens of freshly prepared polyimide precursor resin LARC-160 and resin aged at room temperature up to 45 days were characterized by high-pressure liquid chromatography and several different thermal analyses. Graphite reinforced composites were then fabricated from fresh and aged resin and tested to determine if changes observed by these techniques were significant. It was found that resin aging resulted in greater flow during processing and poorer composite isothermal stability. However, aging did not affect the room-temperature flexural or short-beam-shear strengths of the composites.
Document ID
19810036480
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Young, P. R. (NASA Langley Research Center Hampton, VA, United States)
Sykes, G. F. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Symposium on Resins for aerospace
Location: Honolulu, HI
Start Date: April 3, 1979
End Date: April 6, 1979
Accession Number
81A20884
Distribution Limits
Public
Copyright
Other

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