NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Toughening of PMR composites by gradient semi-interpenetrating networksThe toughening of the PMR-15 and LARC RP-46 high temperature thermosetting polyimides is presently attempted through the construction of a semiinterpenetrating network at ply interfaces through the use of the Matrimid 5218 thermoplastic polyimide powder, whose 315-320 glass transition temperature is compatible with the PMR matrices. The 60 vol pct fiber composites thus prepared for the two resins, with and without toughening, were comprehensively characterized in flexure, tension, intralaminar and short beam shear, compression and quasi-isotropic short-block compression, as well as modes I and II interlaminar fracture toughness and compression after impact.
Document ID
19930031781
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Johnston, N. J.
(NASA Langley Research Center Hampton, VA, United States)
Srinivasan, K.
(NASA Langley Research Center Hampton, VA, United States)
Peter, R. H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: International SAMPE Symposium and Exhibition, 37th, Anaheim, CA, Mar. 9-12, 1992, Proceedings (A93-15726 04-23)
Publisher: Society for the Advancement of Material and Process Engineering
Subject Category
Composite Materials
Accession Number
93A15778
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available