Abstract:
본 발명은 탄소전구체로 보강된 탄소나노튜브섬유 및 이의 제조방법에 관한 것이다. 본 발명에 따른 탄소나노튜브섬유는 탄소나노튜브섬유의 내부 빈 공간이 탄소전구체로 채워져 탄화되어, 효과적인 응력전달과 접촉저항 감소로 인하여 역학적, 열적 특성이 향상되며 고온에서도 이러한 특성이 손상되지 않고 유지되는 효과가 있다.
Abstract:
The present invention relates to a manufacturing method of carbon nanotube fiber with enhanced spinnability using a surfactant, and carbon nanotube fiber manufactured by the same. According to the manufacturing method of carbon nanotube fiber, the surfactant is added during the carbon nanotube manufacturing process to inhibit and delay aggregation of a catalyst. Therefore, the size of the catalyst, a key element of the carbon nanotube fiber, is reduced and thus the catalyst is uniformly dispersed. Consequently, the strength, conductivity, and spinnability of the carbon nanotube fiber are increased. According to a conventional method, carbon nanotube fibers are manufactured by injecting, at a high-pressure supercritical state, a material serving as a catalyst in a process of synthesizing carbon nanotubes so as to uniformly spray the material; however, the present invention applies a dispersant to eliminate an injection procedure at the supercritical state that requires high-pressure.