Anisotropy of sheared carbon-nanotube suspensions.
We measure the anisotropy of sheared carbon-nanotube suspensions for a broad range of concentration, aspect ratio, and strain rate using a variety of methods. Our measurements highlight the importance of excluded-volume interactions in the semidilute regime, with scaling in terms of a dimensionless shear rate. Our results also suggest that such interactions might be exploited to fractionate carbon nanotubes by length in simple shear flow.
Fry
D
D
National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
Langhorst
B
B
Kim
H
H
Grulke
E
E
Wang
H
H
Hobbie
Erik K
EK