Rotational friction of single-wall carbon nanotubes in liquid suspension

Zimmermann, Frank M.; Shan, Jerry W.
February 2009
Applied Physics Letters;2/2/2009, Vol. 94 Issue 5, pN.PAG
Academic Journal
The hydrodynamics of single-wall carbon nanotubes rotated in liquid suspension by an external electric field was experimentally investigated with laser polarimetry and compared with theoretical predictions. The measured rates of change of the nematic order parameter were largely consistent with theoretical predictions based on classical, no-slip hydrodynamics. This implies that, despite the nanotubes’ diameter approaching the size of the solvent molecules and the reduced resistance previously reported for internal flow through carbon nanotubes, classical continuum hydrodynamics holds approximately for external flow about individual single-wall carbon nanotubes in liquids.


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