公开(公告)号：US20230167588A1

公开(公告)日：2023-06-01

申请号：US17980845

申请日：2022-11-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bon-Cheol KU ,  Sung Yong Kim ,  Seo Gyun KIM ,  NAM HO YOU ,  Jungwon KIM ,  Jun Yeon HWANG ,  Nam Dong KIM ,  Dae-Yoon KIM

IPC: D01F9/24 ,  C04B35/532 ,  D01F1/10 ,  D01F6/74

CPC classification number: D01F9/24 ,  C04B35/532 ,  D01F1/10 ,  D01F6/74 ,  C04B2235/5248 ,  D10B2401/04 ,  D10B2401/063

Abstract: The present invention relates to a method for manufacturing carbon composite fibers and carbon nanofibers, and more particularly, to a method for manufacturing carbon composite fiber with greatly improved specific tensile strength, specific modulus, electrical conductivity, and thermal conductivity.

公开(公告)号：US20230114595A1

公开(公告)日：2023-04-13

申请号：US17701398

申请日：2022-03-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dae Yoon KIM ,  Ki Hyun RYU ,  Bon Cheol KU ,  Jun Yeon HWANG ,  Nam Dong KIM ,  Dong Ju LEE ,  Seo Gyun KIM

IPC: D01F1/10 ,  D01D5/06 ,  D01D1/02 ,  D01F9/12 ,  D01F6/60 ,  C08G69/26 ,  C08K3/04

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.

公开(公告)号：US20220227631A1

公开(公告)日：2022-07-21

申请号：US17387305

申请日：2021-07-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: C01B32/168 ,  D01F9/12 ,  D01D5/12

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° 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/cm3.