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Thermochemical tests on resins: char resistance of selected phenolic cured epoxides
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Keck, F. L. |
| Copyright Year | 1982 |
| Description | Curing epoxy resins with novalac phenolic resins is a feasible approach for increasing intact char of the resin system. Char yields above 40% at 700 C were achieved with epoxy novalac (DEN 438)/novalac phenolic (BRWE 5833) resin systems with or without catalyst such as ethyl tri-phenyl phosphonium iodide. These char yields are comparable to commercially used epoxy resin systems like MY-720/DDS/BF3. Stable prepregs are easily made from a solvent solution of the epoxy/phenolic system and this provides a feasible process for fabrication of same into commercial laminates. |
| File Size | 382119 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820018515 |
| Archival Resource Key | ark:/13960/t5m951z73 |
| Language | English |
| Publisher Date | 1982-02-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Curing Product Development Catalysis Laminates Phenolic Epoxy Resins Epoxy Compounds Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
