PARTICLE-TOUGHENED POLYMER COMPOSITIONS

摘要

Particle-toughened polymer compositions include a base polymer formula-tion and a plurality of toughening particles. In certain embodiments, the base polymer formu-lation includes bismaleimides or other polymer resins capable of high temperature service. A first plurality of toughening particles may in-clude core shell rubbers. A second plurality of toughening particles may be selected from a variety of polymer compositions, including polyimides, polyether ketone (PEK), polyether ether ketone (PEEK), polyether ketone ketone (PEKK), polyether imide, polyether sulfones, and polyphenylene oxide. It is found that in-creasing concentration of the core shell rub-bers may improve the toughness of the compo-sition while preserving thermal properties of the composition, such as glass transition tem-perature.