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Chae, Han Gi
Polymer nano-composites and Carbon Fiber Laboratory (P&C Lab)
Research Interests
  • Polymer Physics/ Processing, Carbon Nano-materials, Ultra high performance/ multifuctional nano-composites, Smart textile/ fiber

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Gel-spun carbon nanotubes/polyacrylonitrile composite fibers. Part III: Effect of stabilization conditions on carbon fiber properties

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Title
Gel-spun carbon nanotubes/polyacrylonitrile composite fibers. Part III: Effect of stabilization conditions on carbon fiber properties
Author
Liu, YaodongChae, Han GiKumar, Satish
Keywords
Characterization methods; Composite fibers; Fiber properties; Oxidative stabilization; Stabilization time; Structural evolution; Thermal shrinkage; Wide angle Xray diffraction
Issue Date
2011-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CARBON, v.49, no.13, pp.4487 - 4496
Abstract
The oxidative stabilization process of gel-spun carbon nanotube (CNT)/polyacrylonitrile (PAN) composite fibers have been studied and optimized. Optimum stabilization time depends on both the applied tension and temperature. Various characterization methods including thermal shrinkage, dynamic mechanical analysis, infrared spectroscopy, and wide angle X-ray diffraction are used to monitor the chemical and structural evolution during stabilization and carbonization. The relationship between the stabilization conditions of CNT/PAN composite fiber and the tensile properties of the resulting carbon fibers were investigated. By optimizing stabilization conditions, CNT/PAN based carbon fibers with a tensile strength of 4 GPa and a tensile modulus of 286 GPa were obtained using batch carbonization processing at 1100 °C. ⓒ 2011 Elsevier Ltd. All rights reserved.
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DOI
10.1016/j.carbon.2011.06.045
ISSN
0008-6223
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MSE_Journal Papers
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