CARBON NANOTUBE FIBERS AND MANUFACTURING METHOD OF THE SAME

• Main Authors: LEE, KUN HONG, LEE, JAE GEUN, JUNG, A LUM
• Format: Patent
• Language: English; Korean
• Published: 27.10.2015
• Subjects: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The present invention relates to carbon nanotube fibers with high strength and a method for producing the same. The method for producing carbon nanotube fibers includes the steps of: providing carbon nanotube fibers with tensile strength greater than 5 GPa and producing precursors of the carbon nanotube fibers consisting of carbon nanotubes; uniformly dispersing a cross-linking agent on the precursors of the carbon nanotube fibers; and obtaining the carbon nanotube fibers by thermally treating the precursors of the carbon nanotube fibers on which the crsss-linking agent is uniformly dispersed. The obtained carbon nanotube fibers are in a state that walls of the carbon nanotubes are cross-linked to each other. 탄소나노튜브 섬유 및 그 제조방법에 관한 것으로, 인장 강도가 5 GPa 초과인 탄소나노튜브 섬유를 제공하는 한편, 탄소나노튜브로 구성된 탄소나노튜브 섬유 전구체를 제조하는 단계; 상기 탄소나노튜브 섬유 전구체에 가교결합제를 고르게 분포시키는 단계; 및 상기 가교결합제가 고르게 분포된 탄소나노튜브 섬유 전구체를 열처리하여, 탄소나노튜브 섬유를 수득하는 단계;를 포함하고, 상기 수득된 탄소나노튜브 섬유는 탄소나노튜브의 벽면 간 가교결합이 형성된 형태인 것인 고강도 탄소나노튜브 섬유 의 제조방법을 제공할 수 있다.