Abstract
According to physical and chemical designs, a novel modified kaolinite/carboxymethyl starch (CMS) nanocomposite was synthesized with a displacement method with dimethyl sulfoxide modified kaolinite as an intermediate. The material characterizations were carried out by X-ray diffraction, transmission electron microscopy, thermogravimetric analysis, and scanning electron microscopy. The analyses showed that kaolinite was dispersed at the nanometer-scale segments into the CMS matrix. The electrorheological behavior of the modified kaolinite/CMS hybrid nanocomposite dispersed in silicone oil was investigated. Under electric field strength (E) = 4 kV/ mm and shear rate (γ̇) = 105 s-1, the shear stress of the modified kaolinite/CMS nanocomposite electrorheological fluid could be up to 8380 Pa, which was 10.4 times that of the electrorheological fluid at zero field. The modified kaolinite/CMS nanocomposite electrorheological fluid also exhibited good sedimentation properties.
Original language | English |
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Pages (from-to) | 2833-2839 |
Number of pages | 7 |
Journal | Journal of Applied Polymer Science |
Volume | 108 |
Issue number | 5 |
DOIs | |
State | Published - 5 Jun 2008 |
Keywords
- Clay
- Colloids
- Nanocomposites
- Nanotechnology
- Rheology