High performance thermoplastic polyimide matrix-fiber composites
- Univ. of Akron, OH (United States)
A new thermoplastic polyimide has been synthesized from 3,3{prime},4,4{prime}-benzophenonecarboxlic dianhydride (BTDA) and 2,2-dimethyl-1,3-(4-aminophenoxy)propane (DMDA) which shows good thermal and dimensional stabilities, as well as mechanical properties. In particular, the toughness of BTDA-DMDA far exceeds other thermoplastic materials with a fracture energy G{sub 1c} of 4.28 kJ/m{sup 2}. A material of this nature has obvious potential as a matrix resin for high temperature, high performance composites. This report concentrates on the study of structure, molecular motion, crystal-amorphous interface and crystal morphology to explore origins of the high toughness. Furthermore, the authors will examine the BTDA-DMDA matrix composites` mechanical properties and matrix-fiber interphase.
- OSTI ID:
- 141860
- Report Number(s):
- CONF-930304--
- Country of Publication:
- United States
- Language:
- English
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