Sustainable, fire‐resistant phthalonitrile‐based glass fiber composites
Abstract
The sustainable resveratrol‐based phthalonitrile was used in the preparation of E‐glass fiber‐reinforced phthalonitrile composite panels fabricated by hot pressed prepreg consolidation with bis[4‐(3‐aminophenoxy)phenyl]sulfone (m‐BAPS) as the curing additive. This amorphous monomer exhibited excellent viscosities at temperatures below 200 °C, which is applicable to standard processing conditions. Rheometric measurements were used to evaluate the cure of the composite as a function of the postcure conditions. The composite retains >95% of its room temperature storage modulus up to 450 °C based on these postcuring parameters. More importantly, flammability performance of the composite—which was determined in terms of ignitability, heat release, and mass loss rate—excels over other state‐of‐the‐art polymer/glass composites. Even under the most extreme heat fluxes (e.g., 100 kW⋅m−2), the composite performs exceptionally well suggesting that resveratrol‐based phthalonitrile composites can be used in fire‐resistant applications. Published 2018.† J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1128–1132
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 12, 2018
- Source ID
- 10.1002/pola.28989
Entities
People
- Arica R. Shepherd
- Jadah S. Clarke
- Matthew Laskoski
- Teddy M. Keller
- Usman Sorathia
- Wadia Mahzabeen
Organizations
- Naval Surface Warfare Center
- Office of Naval Research
- United States Naval Research Laboratory