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Pmr polyimides with improved high temperature performance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Alston, W. B. Vannucci, R. D. |
| Copyright Year | 1975 |
| Description | Studies were performed to investigate the effect of substituting a hexafluoro isopropyl idene connecting group for a carbonyl group of a PMR polyimide monomeric reactant on the thermo-mechanical properties processability of graphite fiber reinforced PMR polyimide composites. Composites were fabricated utilizing PMR methodology. Monomeric reactant solutions of various stoichiometric ratios were used to impregnate Hercules HTS graphite fiber. The processing characteristics and elevated temperature (600 F) mechanical properties of the composites are described. |
| File Size | 1220404 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760004201 |
| Archival Resource Key | ark:/13960/t7kq2sc4c |
| Language | English |
| Publisher Date | 1975-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Stoichiometry Carbon Fibers Composite Materials Graphite Polyimides Mechanical Properties High Temperature Research Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |