公开(公告)号：WO2022154208A1

公开(公告)日：2022-07-21

申请号：PCT/KR2021/010117

申请日：2021-08-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： KU, Bon Cheol ,  HWANG, Jun Yeon ,  JEONG, Hyeon Su ,  YOU, Nam Ho ,  KIM, Nam Dong ,  KIM, Dae Yoon ,  LEE, Dong Ju ,  KIM, Seo Gyun ,  HONG, Seung Ki ,  RYU, Seung Woo

IPC: D01F9/12 ,  D01D5/04 ,  D01D5/06 ,  D01D10/02 ,  D01F1/10

Abstract: 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 ℃ 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/cm3.

公开(公告)号：EP3838842A1

公开(公告)日：2021-06-23

申请号：EP20184985.8

申请日：2020-07-09

Applicant: Korea Institute of Science and Technology

Inventor： KIM, Seung Min ,  LEE, Sung Hyun ,  PARK, Jun Beom ,  PARK, Ji Hong ,  LEE, Dong Myeong ,  MOON, Sook Young ,  JEONG, Hyeon Su

IPC: C01B32/162 ,  C01B32/164 ,  C23C16/455 ,  D01F9/12

Abstract: 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.

公开(公告)号：EP3896200A1

公开(公告)日：2021-10-20

申请号：EP20209539.4

申请日：2020-11-24

Applicant: Korea Institute of Science and Technology

Inventor： JEONG, Hyeon Su ,  KIM, Seung Min ,  MOON, Sook Young ,  LEE, Dong Myeong

IPC: D01F9/12 ,  D01D5/06

Abstract: 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.