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Electric Field-Responsive Mesoporous Suspensions: A Review.

Seung Hyuk Kwon¹, Shang Hao Piao², Hyoung Jin Choi³

¹Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea. 22141016@inha.edu.

Nanomaterials (Basel, Switzerland)

|March 29, 2017

Summary

This study reviews mesoporous materials and their nanocomposites for electrorheological (ER) fluid applications. These smart fluids transition from liquid to solid states under an electric field, showing tunable ER properties for active control systems.

Keywords:

electrorheology mesoporous nanocomposite suspension

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Area of Science:

Materials Science
Colloid and Surface Chemistry

Background:

Electrorheological (ER) fluids contain electrically-polarizable particles that alter viscosity under an electric field.
Mesoporous materials offer unique structural properties for advanced fluid applications.

Purpose of the Study:

To review the fabrication and electrorheological characteristics of mesoporous materials and their nanocomposites.
To explore the behavior of these materials in smart fluids under an applied electric field.

Main Methods:

Fabrication of mesoporous materials and their nanocomposites with conducting polymers.
Characterization of electrorheological properties, including dielectric spectra, flow curves, dynamic moduli, and yield stress.
Dispersion of particles in insulating liquids to form smart fluids.

Main Results:

Mesoporous materials and their nanocomposites exhibit tunable electrorheological properties.
The phase transition from liquid-like to solid-like states is reversible and dependent on electric field strength.
Dielectric spectra correlate with ER properties like flow behavior and yield stress.

Conclusions:

Mesoporous materials and their nanocomposites are promising for developing advanced electrorheological smart fluids.
Understanding dielectric properties is key to optimizing ER fluid performance.
These materials have significant potential in various active control systems.