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Poly /Diels-Alder/ matrix resinsA poly (Diels-Alder) (PDA) resin approach was investigated as a means to achieve autoclavability of high-temperature resistant resin/fiber composites under mild fabrication conditions. The results of the study were highly promising and program objectives were achieved. Low-void content Type A-S graphite reinforced composites were autoclave fabricated from a PDA resin/fiber prepreg prepared from an acetone:methanol:dioxane varnish. Autoclave conditions were 400 F and 100 psi for up to two hours duration. After postcure at temperatures up to 600 F, the composites demonstrated high initial mechanical properties at temperatures up to 550 F. The results from isothermal aging studies in air for 1000 hours indicated potential for long-term (over 1000 hours) use at 500 F and shorter-term use at 550 F.
Document ID
19770048067
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jones, R. J.
(TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Orell, M. K.
(TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Sheppard, C. H.
(TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Vaughan, R. W.
(TRW Defense and Space Systems Group Redondo Beach, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
April 1, 1977
Publication Information
Publication: SAMPE Quarterly
Volume: 8
Subject Category
Composite Materials
Accession Number
77A30919
Funding Number(s)
CONTRACT_GRANT: NAS3-17770
CONTRACT_GRANT: NAS3-15834
Distribution Limits
Public
Copyright
Other

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