Preparation and properties of T800-class carbon fiber reinforced polyimide composite for aero engine

doi:10.19936/j.cnki.2096-8000.20220228.031

Abstract

Abstract: Aiming at the need of aero engines for high-temperature resistance polymer-matrix composites with high performance, research works were carried out on preparation and properties T800-class carbon fiber reinforced polyimide composite. Phenylacetylene(PEPA)-endcapped polyimide resin, EC-380A, was developed. Continuous fabrication technology for the T800-class fiber prepreg was established. Properties of the composite were obtained. The resin exhibits an application temperature of 370 ℃~400 ℃, and is suitable for autoclave processing. The T800-class fiber/EC-380A composite exhibits features of high-temperature resistance, high strength, high modulus and high toughness, with a room temperature tensile strength and modulus of 2 120 MPa and 169 GPa, respectively, a compressive strength after impact (CAI) of 256 MPa, and 370 ℃ retention rates of open-hole strength and modulus above 97% and 84%, respectively. Typical components have been fabricated, and exhibit sufficient safety margins.

Key words: aero engine, polyimide, T800-class carbon fiber, high-temperature composite

CLC Number:

TB332

NI Hong-jiang, LI Jun, XING Yu, DAI Xiao-xiang, ZHANG Dai-jun, CHEN Xiang-bao. Preparation and properties of T800-class carbon fiber reinforced polyimide composite for aero engine[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(5): 46-51.

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