Coagulation engineering of surfactant-based wet spinning of carbon nanotube fibers

Authors
Jeong, Yun HoIm, JaegyunLee, Dong-MyeongKim, Min ChanOh, DaehanSon, JeonghyeonPark, SeunggyuHyun, KyuJeong, BeomjinLee, Jaegeun
Issue Date
2024-04
Publisher
한국탄소학회
Citation
Carbon Letters
Abstract
One of the key challenges for the commercialization of carbon nanotube fibers (CNTFs) is their large-scale economic production. Among CNTF spinning methods, surfactant-based wet spinning is one of the promising techniques for mass producing CNTFs. Here, we investigated how the coagulation bath composition affects the spinnability and the properties of CNTFs in surfactant-based wet spinning. We used acetone, DMAc, ethanol, and IPA as coagulants and analyzed the relationship between coagulation bath composition and the properties of CNTFs in terms of kinetic and thermodynamic coagulation parameters. From a kinetic perspective, we found that a low mass transfer rate difference (MTRD) is favorable for wet spinning. Based on this finding, we mixed the coagulant bath with solvent in a proper ratio to reduce the MTRD, which generally improved the wet spinning. We also showed that the coagulation strength, a thermodynamic parameter, should be considered. We believe that our research can contribute to establishment of surfactant-based wet spinning of CNTFs.
Keywords
ELECTRICAL-PROPERTIES; DISPERSION; POLYMER; Carbon nanotube fiber; Surfactant; Wet spinning; Coagulation; Mass transfer rate difference
ISSN
1976-4251
URI
https://pubs.kist.re.kr/handle/201004/149810
DOI
10.1007/s42823-024-00735-z
Appears in Collections:
KIST Article > 2024
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE