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Optical Measurements of Structure and Orientation in Sheared Carbon-Nanotube Suspensions
Published
Author(s)
Erik K. Hobbie, Haonan Wang, H W. Kim, Charles C. Han, E A. Grulke, Jan Obrzut
Abstract
We describe an optical metrology for measuring shear-induced structure and orientation in dilute dispersions of multiwalled carbon nanotubes. Small-angle polarized light scattering and optical microscopy are combined in situ to quantify the structural anisotropy of multiwalled carbon nanotubes in semidilute, surfactant-stabilized aqueous suspensions under simple shear flow. Measurements performed as a function of the applied shear rate are used to demonstrate the capabilities and limitations of the experimental technique, which should be suitable for probing the shear response of polymer-nanotube melts and solutions.
Hobbie, E.
, Wang, H.
, Kim, H.
, Han, C.
, Grulke, E.
and Obrzut, J.
(2003),
Optical Measurements of Structure and Orientation in Sheared Carbon-Nanotube Suspensions, Review of Scientific Instruments, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852057
(Accessed October 2, 2025)