Solid-state spun fibers and yarns from 1-mm long carbon nanotube forests synthesized by water-assisted chemical vapor deposition |
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| Authors: | Shanju Zhang Lingbo Zhu Marilyn L. Minus Han Gi Chae Sudhakar Jagannathan Ching-Ping Wong Janusz Kowalik Luke B. Roberson Satish Kumar |
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| Affiliation: | (1) School of Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA 30332, USA;(2) School of Materials Sciences and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332, USA;(3) School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA;(4) National Aeronautics and Space Administraion, John F. Kennedy Space Center, Kennedy Space Center, Orlando, FL 32899, USA |
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| Abstract: | We report continuous carbon nanotube (CNT) fibers and yarns dry-drawn directly from water-assisted chemical vapor deposition (CVD) grown forests with about 1-mm height. As-drawn CNT fibers exist as aerogel and can be transformed into more compact fibers through twisting or densification with a volatile organic liquid. CNT fibers are characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, Raman microscopy, and wide-angle X-ray diffraction. Mechanical properties and electrical conductivity of the post-treated CNT fibers are investigated. The resulting fibers show the work of rupture of 30 J/g and DC electrical conductivity of 5.0 × 104 S/m. |
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