Dynamically Vulcanized Polyarylene Sulfide Composition

摘要

Polyarylene sulfide compositions are described that exhibit high strength and flexibility. Methods for forming the polyarylene sulfide compositions are also described. Formation methods include dynamic vulcanization of a polyarylene sulfide composition that includes an impact modifier dispersed throughout the polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier throughout the composition. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures and can be used to form, e.g., tubular member such as pipes and hoses and fibers.

主权项

1. A polyarylene sulfide composition including a polyarylene sulfide and a crosslinked impact modifier, wherein the polyarylene sulfide composition has a notched Charpy impact strength of greater than about 3 kJ/m2 as measured according to ISO Test No. 179-1 at a temperature of 23° C. and a notched Charpy impact strength of greater than about 8 kJ/m2 as measured according to ISO Test No. 179-1 at a temperature of −30° C.