Morphology and fracture mechanisms in thermoplastics-modified BMI resin Conference Paper uri icon

abstract

  • The morphology and fracture toughness in polyetherimide (PEI) and polyphenylene oxide (PPO) modified bismaleimide (BMI Cytec 5250-4-RTM) resins were investigated. It is found that the morphology in these thermoplastic-modified BMI depends on the solubility of the thermoplastic particles as well as curing cycle utilized. The fracture toughness and mechanisms in these modified BMI resins are found to vary with the morphology of thermoplastic particles. The addition of thermoplastic particles can improve toughness significantly. The main fracture mechanism for BMI/PPO system is due to particle bridging (ductile drawing) of PPO particles. The toughening mechanisms in the BMI/PEI systems are crack path deflection and ductile yielding of the PEI phase.

published proceedings

  • CONFERENCE PROCEEDINGS AT ANTEC '98: PLASTICS ON MY MIND, VOLS I-3

author list (cited authors)

  • Wei, G. X., Miranda, J., Sue, H. J., Burton, B., & White, D.

complete list of authors

  • Wei, GX||Miranda, J||Sue, HJ||Burton, B||White, D

publication date

  • January 1998