TY - GEN
T1 - Rheological behavior of nanoclay containing nanofluids
AU - Munro, Jeffrey C.
AU - Rao, Yuan Qiao
PY - 2011
Y1 - 2011
N2 - A synthetic hectorite nanoclay, Laponite®, with a disc shape (20-30 nm in diameter and 1 nm in thickness) was used as a model nanoparticle to prepare dispersions in water and different organic solvents. Although up to 20 wt% of nanoclay can be dispersed in water to form a low-viscosity stable colloidal sol, dispersions in organic solvents behave differently. The effect of the dielectric constant of the medium on the viscosity of the dispersion was studied systematically using two series of water-organic solvent miscible blends. Changes in the rheological behavior of the dispersions suggest that the dielectric constant of the organic solvent is a determining factor in the sol-gel transition of a nanoclay-containing nanofluid.
AB - A synthetic hectorite nanoclay, Laponite®, with a disc shape (20-30 nm in diameter and 1 nm in thickness) was used as a model nanoparticle to prepare dispersions in water and different organic solvents. Although up to 20 wt% of nanoclay can be dispersed in water to form a low-viscosity stable colloidal sol, dispersions in organic solvents behave differently. The effect of the dielectric constant of the medium on the viscosity of the dispersion was studied systematically using two series of water-organic solvent miscible blends. Changes in the rheological behavior of the dispersions suggest that the dielectric constant of the organic solvent is a determining factor in the sol-gel transition of a nanoclay-containing nanofluid.
UR - https://www.scopus.com/pages/publications/80053276793
UR - https://www.scopus.com/pages/publications/80053276793#tab=citedBy
U2 - 10.1557/opl.2011.160
DO - 10.1557/opl.2011.160
M3 - Conference contribution
AN - SCOPUS:80053276793
SN - 9781605112893
T3 - Materials Research Society Symposium Proceedings
SP - 255
EP - 262
BT - Polymer-Based Materials and Composites - Synthesis, Assembly, Properties and Applications
T2 - 2010 MRS Fall Meeting
Y2 - 29 November 2010 through 3 December 2010
ER -