Title of article :
Evolution of rheological properties of the nanofluids composed of laponite particles and Mg–Fe layered double hydroxide nanosheets
Author/Authors :
Hur، نويسنده , , Tae-Bong and Phuoc، نويسنده , , Tran X. and Chyu، نويسنده , , Minking K. and Romanov، نويسنده , , Vyacheslav، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2011
Pages :
6
From page :
2238
To page :
2243
Abstract :
The thixotropic clay suspensions composed of laponite particles and Mg–Fe layered double hydroxide nanosheets were examined. By adding a very small amount of the layered double hydroxide nanosheets overall rheological properties of the host laponite suspension have been changed. Though the particle concentration of the mixture suspension is only about 1 wt%, the mixture quickly becomes a gel in a day by the electrostatic attraction between nano-materials. When a constant shear rate is applied to the mixture gel suspension, at short time, stress increases linearly with elastic deformation of the mixture. Beyond the maximum of stress, while the solid-like gel structure is being broken down with time of shearing, the stress increases again by reflecting shear enhanced association of solid phase. This is likely that the mixture suspension shows partially the behavior of memory effect.
Keywords :
LDH nanosheet , Laponite , Laser ablation
Journal title :
Polymer
Serial Year :
2011
Journal title :
Polymer
Record number :
1737410
Link To Document :
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