Journal
POLYMER
Volume 54, Issue 22, Pages 6210-6217Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.08.061
Keywords
Nano-composite; Carbon nanotube; Bi-component fibers
Categories
Funding
- National Textile Center [M10GT02]
- National Science Foundation [CMMI-0826221]
- Air Force Office of Scientific Research
- Georgia Tech President's Undergraduate Research Program
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Bi-component fibers typically combine multiple functions that arise from at least two distinct components. As a result, these fibers can incorporate carbon nanotubes, which impart specific and controllable mechanical, electrical, and thermal transport properties to the fibers. Using gel spinning, sheath-core polyacrylonitrile-polyacrylonitrile/carbon nanotube bi-component fibers with a diameter of less than 20 mu m and carbon nanotube concentrations of up to 10 wt% were produced. In these fibers, the carbon nanotubes were well dispersed and aligned along the fiber axis. The fibers exhibited a tensile strength as high as 700 MPa, and a tensile modulus as high as 20 GPa, as well as enhanced electrical and thermal conductivities when compared to the fibers without carbon nanotubes. (C) 2013 Elsevier Ltd. All rights reserved.
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