Conductive Thermoplastic Compositions for Use in Tubular Applications

摘要

Conductive thermoplastic compositions are described that exhibit low permeability, high strength and flexibility. Methods for forming the thermoplastic compositions are also described. Formation methods include dynamic vulcanization of a thermoplastic composition that includes carbon nanotubes and 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 conductive tubular member such as pipes and hoses and fibers.

主权项

1. A thermoplastic composition including a polyarylene sulfide, a crosslinked impact modifier, and carbon nanotubes, the thermoplastic composition including the carbon nanotubes in an amount from about 0.1% to about 5% by weight of the thermoplastic composition, wherein the thermoplastic composition has a surface resistivity of about 105 ohm or less