Polyacrylonitrile/carbon nanotubes (CNT) composite fibers with high CNT loading (10 to 30 wt%) were fabricated using a new steady shear-flow spinning method. The use of a steady shear-flow enhances the alignment for both the CNT and the polymer chains along the fiber's direction during spinning. Both PAN control and composite fibers demonstrate good drawability and were subjected to subsequent multiple-stage hot drawing. The total draw ratio for both PAN control and composite fibers was as high as 200. Modulus of PAN/CNT composite fibers at CNT 10 wt% loading was improved by 47% compared to the control PAN fibers.

Processing high draw ratio polymer/carbon nanotubes composite fibers by using steady shear-flow

243rd National Meeting (2012)

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