A magnetorheological study of single-walled and multi-walled carbon nanotube dispersions in mineral oil and epoxy resin.

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.

Grantor dc:publisher

University of North Texas

Year dc:date

2005

Author dc:creator

• Yang, Zhengtao

Contributors dc:contributor

• D'Souza, Nandika Anne, 1967-
• Brostow, Witold, 1934-
• Reidy, Richard
• Roberts, James A.
• Bahr, Jeffrey

• Nanotubes.
• Carbon.
• SWNT
• MWNT
• mineral oil
• magnetorheological
• carbon nanotubes
• alignment

Statement dc:rights

• Public
• Copyright
• Yang, Zhengtao
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 62161064
https://digital.library.unt.edu/ark:/67531/metadc4742/
ark: ark:/67531/metadc4742

OAI identifier oai:identifier

info:ark/67531/metadc4742