Magnetorheology of Single-Walled Nanotube Dispersions
Stable homogeneous aqueous colloidal dispersion of single-wall carbon nanotubes (SWNTs) was prepared by using sodium saltdodecylbenzene sulfateas dispersing agent. Both strain amplitude and frequency sweep modes were employed to investigate the effect of magneticfields on their viscoelastic properties by using a parallel-plate rheometer. The experimental results demonstrated that such materials exhibitmagnetorheology, whose storage modulus and loss modulus show an increasing trend with magnetic field. The network microstructure wasemployed to explain the effect of magnet field on the magnetorheological properties. In addition, these results are expected to develop novelSWNT based magnetorheological fluids.