Polyimide resins exhibit remarkable properties, including thermal stability, excellent chemical resistance, and high tensile strength. These characteristics remain intact even under continuous use at temperatures of up to 232°C (450°F), and for brief excursions, as high as 400°C (752°F). However, it’s worth noting that this resin is priced higher compared to other materials such as epoxy, phenolic, thermoplastic, BMI, and cyanate ester.
The demand for polyimide resin is particularly strong in various applications:
- Aircraft: It finds use in components like brakes, engine bypass ducts, nozzle flaps, bushings, bearings, engine cooling tubes, and radomes.
- Weapon systems: These include missile structures and dorsal fins.
- Space vehicles: Polyimide resin can withstand the extreme service temperatures generated by military aircraft jet engines.
Additionally, carbon fiber composites made from polyimides have outperformed metals in terms of strength-to-weight properties. Notably, they excel in applications such as aircraft engine nozzles, nacelles, helicopter gear cases, and missile fins, especially when operating within the range of 450°F to 650°F (242°C to 342°C).
Contact us to see if BMI resins are right for your application.