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A thermoplastic polyimidesulfoneA polymer system has been prepared which has the excellent thermoplastic properties generally associated with polysulfones, and the solvent resistance and thermal stability of aromatic polyimides. This material, with improved processability over the base polyimide, can be processed in the 260-325 C range in such a manner as to yield high quality, tough unfilled moldings; strong, high-temperature-resistant adhesive bonds; and well consolidated, graphite-fiber-reinforced moldings (composites). The unfilled moldings have physical properties that are similar to aromatic polysulfones which demonstrates the potential as an engineering thermoplastic. The adhesive bonds exhibit excellent retention of initial strength levels even after thermal aging for 5000 hours at 232 C. The graphite-fiber-reinforced moldings have mechanical properties which makes this polymer attractive for the fabrication of structural composites.
Document ID
19850039332
Document Type
Conference Proceedings
Authors
St. Clair, T. L. (NASA Langley Research Center Hampton, VA, United States)
Yamaki, D. A. (NASA Langley Research Center Hampton, VA; Mobil Research and Development Corp., Paulsboro, NJ, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
NONMETALLIC MATERIALS
Distribution Limits
Public
Copyright
Other