Exploratory Evaluation of Polyphenylquinoxaline Fiber as a Precursor for High Mol Modulus Carbon Fiber.
Abstract
This report describes exploratory studies for graphitizing polyphenylquinoxaline fibers. In order to obtain larger diameter, high performance carbon fibers for improved impact and transverse and compres-sive strengths in graphite fiber/resin composites, and for development of carbon fiber/metal matrix composites. The properties of the graphitized PPQ fibers did not reach those of the state-of-the-art fibers under this exploratory investigation. It is expected, however, that the fiber properties can be considerably improved with proper stabilization. Thermal crosslinking of polyphenylquinoxalines to obtain stabilization has been subsequently demonstrated. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1974
- Accession Number
- AD0780430
Entities
People
- J. M. Augl
Organizations
- Naval Ordnance Laboratory