- Author
- Sorathia, U. | Keller, T. | Venkatachalam, R. S. | Armistead, P. | Sastri, S. | Ness, J.
- Title
- Fire Resistant Composites Based on Phthalonitrile Resins. Research and Development Report.
- Coporate
- Naval Surface Warfare Center, Behtesda, MD
- Sponsor
- Office of Naval Research, Arlington, VA
- Report
- Research and Development, March 1996, 46 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- resins | composite materials | fire resistant materials | glass | fire barriers | flammability | smoke | combustion gases | heat release
- Identifiers
- phthalonitrile
- Abstract
- In order to facilitate the transition of Navy developed high temperature and fire resistant materials for ship and submarine applications, phthalonitrile resin based glass reinforced composites were evaluated for mechanical and flammability properties. Additionally, these composite materials were also characterized as face sheets for fire barrier applications in conjunction with more conventional materials of choice such as vinyl ester and epoxies. Data indicate that glass/phthalonitrile composite mechanical properties exceed those of glass fiber reinforced vinyl ester or epoxy composites studied previously. Further, the short beam shear strengths are much higher than those typically found for glass/epoxy composites and approach the typical values found for carbon fiber reinforced epoxy composites. Data also indicate that glass reinforced phthalonitrile composite when used as a fire barrier face sheet (0.125 in. thick) is effective in reducing smoke generation and increasing time to ignition for both glass/vinyl ester and glass/epoxy composite systems.