Direct spinning and densification method for high-performance carbon nanotube fibers
- Direct spinning and densification method for high-performance carbon nanotube fibers
- 이헌수; 김승민; 정현수; 박준범; 이동명; 이재근; 정연수; 김영관; 박종래
- Carbon nanotube fiber; direct spinning; densification
- Issue Date
- Nature Communications
- VOL 10-2962-10
- 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− 1), stiff (speci!c tensile modulus = 187.5 ± 7.4 Ntex− 1), electrically conductive (2,270 Sm2kg− 1), and highly "exible (knot ef!ciency = 48 ± 15%), so they are suitable for various high-value fabric-based applications.
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