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PMR Composites Of Increased ToughnessToughness increased without sacrificing processability or hot strength. Resin composition provides best overall balance of composite toughness and retention of mechanical properties at 600 degree F (316 degree C) with processability obtained by substituting 20 mole percent of diamine used in PMR-15 resins with diamine containing twice number of flexible phenyl connecting groups.
Document ID
19880000286
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Vannucci, Raymond D. (NASA Lewis Research Center, Cleveland, Ohio.)
Bowles, Kenneth J. (NASA Lewis Research Center, Cleveland, Ohio.)
Date Acquired
August 13, 2013
Publication Date
May 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 5
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-14574
Accession Number
88B10286
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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