Single wall carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) were dispersed in mineral oil and epoxy resin. The magnetorheological properties of these dispersions were studied using a parallel plate rheometer. Strain sweeps, frequency sweeps, magneto sweeps and steady shear tests were conducted in various magnetic fields. G', G", h* and ty increased with increasing magnetic field, which was partially attributed to the increasing degree of the alignment of nanotubes in a stronger magnetic field. The SWNT/mo dispersions exhibited more pronounced magnetic field dependence than SWNT/ep and MWNT/mo counterparts due to their much lower viscosity. The alignment of SWNTs in mineral oil increased with rising nanotube concentration up to 2.5vol% but were significantly restricted at 6.41vol% due to nanotube flocculation.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc4742 |
| Date | 05 1900 |
| Creators | Yang, Zhengtao |
| Contributors | D'Souza, Nandika Anne, 1967-, Brostow, Witold, 1934-, Reidy, Richard, Roberts, James A., Bahr, Jeffrey |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | Text |
| Rights | Public, Copyright, Yang, Zhengtao, Copyright is held by the author, unless otherwise noted. All rights reserved. |
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