Continuous, carbon-nanotube-reinforced polymer precursors and carbon fibers
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United States of America Patent
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May 7, 2013
Grant Date -
Aug 23, 2012
app pub date -
May 3, 2012
filing date -
Nov 12, 2008
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Abstract
The present invention relates to a continuous, carbon fiber with nanoscale features comprising carbon and carbon nanotubes, wherein the nanotubes are substantially aligned along a longitudinal axis of the fiber. Also provided is a polyacrylonitrile (PAN) precursor including about 50% to about 99.9% by weight of a melt-spinnable PAN and about 0.01% to about 10% of carbon nanotubes. Other precursor materials such as polyphenylene sulfide, pitch and solution-spinnable PAN are also provided. The precursor can also include a fugitive polymer which is dissociable from the precursor polymer.
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