Resins for Advanced Reentry Systems Applications.
Abstract
Metal-loaded carbon and graphite-cloth reinforced composites were prepared from blends of poly(phenylquinoxaline) and poly(metal phosphinates) of zirconium, hafnium, tantalum, lead, or uranium. The flexural strengths of composite samples containing equal weights of the two polymers in the resin phase ranged from 13,000 to 32,000 psi. The corresponding values for laminates in which the resin phase contained 80 per cent of a poly(metal phosphinate) ranged from 4,500 to 17,000 psi. All laminates had low void contents. Pyrolysis of the laminates produced cohesive structures having flexural strengths of 3,000 to 6,000 psi. The strength values increased to 7,000 to 10,000 psi after the samples were reimpregnated with a furfuryl alcohol resin and repyrolyzed. The pyrolysis results are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1973
- Accession Number
- AD0764630
Entities
People
- Gerd H. Dahl
- James P. King
- Peter B. Block