Direct spinning and densification method for high-performance carbon nanotube fibers

Title
Direct spinning and densification method for high-performance carbon nanotube fibers
Authors
이헌수김승민정현수박준범이동명이재근정연수김영관박종래
Keywords
Carbon nanotube fiber; direct spinning; densification
Issue Date
2019-07
Publisher
Nature Communications
Citation
VOL 10-2962-10
Abstract
Developing methods to assemble nanomaterials into macroscopic scaffolds is of critical signi!cance at the current stage of nanotechnology. However, the complications of the fabrication methods impede the widespread usages of newly developed materials even with the superior properties in many cases. Here, we demonstrate the feasibility of a highlyef !cient and potentially-continuous !ber-spinning method to produce high-performance carbon nanotube (CNT) !ber (CNTF). The processing time is <1 min from synthesis of CNTs to fabrication of highly densi!ed and aligned CNTFs. CNTFs that are fabricated by the developed spinning method are ultra-lightweight, strong (speci!c tensile strength = 4.08 ± 0.25 Ntex&#8722; 1), stiff (speci!c tensile modulus = 187.5 ± 7.4 Ntex&#8722; 1), electrically conductive (2,270 Sm2kg&#8722; 1), and highly "exible (knot ef!ciency = 48 ± 15%), so they are suitable for various high-value fabric-based applications.
URI
http://pubs.kist.re.kr/handle/201004/70627
ISSN
2041-1723
Appears in Collections:
KIST Publication > Article
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