Title: Thermal Stability of Polymer Matrix Composites

Authors: Robert J. Iredale

DOI: 10.33599/nasampe/c.25.146

Abstract: The material performance needs of the aerospace industry are trending towards higher temperatures across all market segments. Understanding the capability limits of both today' s composites and the material of the future is critical for expansion of the performance envelope for carbon fibre reinforced polymers. Historically, bismaleimide (BMI) and cyanate ester (CE) resins have been used when the thermal performance of industry standard epoxy composites is not sufficient. At these temperatures, additional stability factors come into play beyond the hot/wet performance of the system. In this work, the thermal performance of next generation high temperature composites is investigated in terms of thermo-oxidative degradation, glass transition temperature (Tg) stability and thermal shock resistance. The results from these investigations highlight the advances that Syensqo has achieved in improving the thermal stability of future BMI materials in comparison to the current state of the art. These improvements are achieved while maintaining the excellent mechanical performance associated with BMI matrix composites and enhancing processability in terms of cure and post cure cycle times.

References: 1. R. Iredale, C. Ward and I. Hamerton, Modern advances in bismaleimide resin technology: A 21st century perspective on the chemistry of addition polyimides, Progress in Polymer Science, 69, 2017. https://doi.org/10.1016/j.progpolymsci.2016.12.002 2. T. Fang and D. A. Shimp, Polycyanate esters: science and applications, Progress in Polymer Science, 20, 1995. https://doi.org/10.1016/0079-6700(94)E0006-M 3. J. Boyd and A. Kuo, A new bismaleimide composite with thermal stability approaching PMR15 performance, 39th SAMPE Symposium, Anaheim, 1994

Conference: CAMX 2025

Publication Date: 2025/09/08

SKU: 146

Pages: 10

Price: $20.00