Low resistivity , high modulus , and / or carbon nanotube fibers having a high thermal conductivity , as well as a manufacturing method of the fibers by spinning using a fiber spinning dope

摘要

A carbon nanotube fibers having a resistivity of less than 120 cm, by extruding step of supplying the spinning dope containing carbon nanotubes to spinneret , the spinning dope from at least one spinning hole of the spinneret to form a spun CNT fibers process , and in a coagulation medium to form a solidified CNT fibers , comprising wet -spinning process including a step of forming a solidified CNT fibers are solidifying the spun CNT fibers are stretched by 1.0 times or more of the draw ratio , and the carbon nanotubes the carbon nanotube fibers produced the length as at least 0.5m of . I have a resistivity lower than 50 cm than any reported value that is produced by a known manufacturing process . At the same time the CNT fibers have a high modulus of elasticity .