ELECTROCONDUCTIVE POLYAMIDE FIBER AND CONDUCTIVE BRUSH

摘要

PROBLEM TO BE SOLVED: To provide a conductive brush having less change in resistance value caused by humidity change than that of a conventional conductive brush consisting of a polyamide 6 conductive yarn and having a high shape-stability, and also to provide an electroconductive polyamide fiber of considering the global environment.SOLUTION: The electroconductive polyamide fiber comprises polyamide having a dicarboxylic acid unit consisting mainly of a sebacic acid unit and electroconductive carbon. The electroconductive carbon is contained in the polyamide fiber in an amount of 10-40 mass%, and the dimensional stability of the fiber is 0.5% or less.