title: Anisotropy of sheared carbon-nanotube suspensions.
abstract: 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.
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
authors.forename: D
authors.initials: D
authors.lastname: Fry
authors.forename: B
authors.initials: B
authors.lastname: Langhorst
authors.forename: H
authors.initials: H
authors.lastname: Kim
authors.forename: E
authors.initials: E
authors.lastname: Grulke
authors.forename: H
authors.initials: H
authors.lastname: Wang
authors.forename: Erik K
authors.initials: EK
authors.lastname: Hobbie