Korea Institute of Science and Technology

Hyeon Su Jeong

Dong Myeong Lee

Seung Min Kim

Sook Young Moon

Jun Beom Park

Seung Woo Ryu

Nam Ho You

Bon Cheol Ku

Jun Yeon Hwang

Nam Dong Kim

Dong Ju Lee

Hun Su Lee

Seo Gyun Kim

Dae Yoon Kim

Jae Geun Lee

Ji Hong Park

Seung Ki Hong

Sung Hyun Lee

Young Kwan Kim

The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm.

Carbon nanotube fiber having improved physical properties and method for manufacturing same

Disclosed is a method for mass-producing densified carbon nanotube fiber. The method includes preparing carbon nanotube fiber, swelling the carbon nanotube fiber by applying an acid solution thereto, and stretching the carbon nanotube fiber, coagulating the stretched carbon nanotube fiber so as to remove the acid solution present therein, and drying the coagulated carbon nanotube fiber.

Method for producing densified carbon nanotube fiber

The present disclosure provides an apparatus capable of continuously producing carbon nanotubes having high crystallinity, a low residual catalyst content and a high aspect ratio. The apparatus for producing carbon nanotubes includes: a reaction unit configured to synthesize carbon nanotubes (CNTs), a supply unit configured to supply a carbon source to the reaction unit through a supply pipe; and a collection unit configured to collect carbon nanotubes discharged from the reaction unit, wherein the reaction unit may include a chemical vapor deposition reactor.

Apparatus for continuously producing carbon nanotubes

Provided is a method for continuously manufacturing carbon nanotube fibers with high strength and high conductivity, which includes synthesizing carbon nanotube fibers by direct spinning; treating the carbon nanotube fibers with a strong acid while applying tension thereto; and washing the carbon nanotube fibers treated with the strong acid.

Method for continuous manufacture of cntf having high strength and high conductivity

Growing community of inventors

Jeollabuk-do, South Korea

Hyeon Su Jeong