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Carbon nanotube-infused fiber materials containing parallel-aligned carbon nanotubes, methods for production thereof, and composite materials derived therefrom

  • US 8,999,453 B2
  • Filed: 02/01/2011
  • Issued: 04/07/2015
  • Est. Priority Date: 02/02/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • providing a carbon nanotube-infused fiber material comprising a fiber material and carbon nanotubes infused to the fiber material, the carbon nanotubes being aligned substantially perpendicular to the outer surface of the fiber material, and the carbon nanotubes being grown on the fiber material and infused to the outer surface;

    crosslinking at least a portion of the substantially perpendicular-aligned, infused carbon nanotubes to each other, to the fiber material, or to both; and

    after crosslinking, drawing the carbon nanotube-infused fiber material from a liquid to reorient at least some of the carbon nanotubes into a substantially parallel orientation with respect to the longitudinal axis of the fiber material and to form a layer of crosslinked, infused carbon nanotubes on the outer surface of the fiber material.

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