Evaluation of Newly Developed Reinforced Thermoplastic Composites.
Abstract
Five thermoplastic resins were screened for suitability as fluid resistant matrices for graphite composites. Additionally, the thermoplastic resins were screened for reformability after obtaining a full complement of mechanical properties. Three of these resins (NTS), (PPS) and (PEEK) were selected for further characterization. These materials were essentially insensitive to aircraft fluids and moisture and had mechanical properties equivalent to or better than state-of-the-art (SOTA) epoxies. The PPS system was similar to NTS and PEEK with regard to room temperature properties. It was better than NTS but worse than PEEK with regard to solvent resistance. At elevated temperature (i.e. greater than 220 degrees F) PPS was somewhat poorer than NTS and PEEK. To improve coupling between NTS and Kevlar fabric, polyimide sizings were evaluated, and yielded excellent results based on Flexural and short beam shear properties. The design properties of NTS on Kevlar and Kevlar/graphite hydrids were judged to be equivalent to those of currently used epoxy systems. (MM)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1982
- Accession Number
- ADA306169
Entities
People
- C. H. Sheppard
- E. E. House
Organizations
- Boeing