Polyimides
Bismaleimide (BMI) resins
- Advantages
- Low processing temperature versus polyimides (Cured at 350F)
- Standard epoxy processing equipment can be used since same T.
- Postcure of 475 F is required to complete polymerization.
- BMI are fully formed polyimides when reacted to form composite
- Thus, no volatiles are removed and no consolidation problems
- Tack and drape are quite good because of the liquid component of the reactants