Direct spinning and densification method for high-performance carbon nanotube fibers.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 31273205.
- Also identified by DOI 10.1038/s41467-019-10998-0 and PMC identifier 6609687.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Developing methods to assemble nanomaterials into macroscopic scaffolds is of critical significance 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 highly-efficient and potentially-continuous fiber-spinning method to produce high-performance carbon nanotube (CNT) fiber (CNTF). The processing time is <1 min from synthesis of CNTs to fabrication of highly densified and aligned CNTFs. CNTFs that are fabricated by the developed spinning method are ultra-lightweight, strong (specific tensile strength = 4.08 ± 0.25 Ntex<sup>-1</sup>), stiff (specific tensile modulus = 187.5 ± 7.4 Ntex<sup>-1</sup>), electrically conductive (2,270 S m<sup>2</sup>kg<sup>-1</sup>), and highly flexible (knot efficiency = 48 ± 15%), so they are suitable for various high-value fabric-based applications.