Skip to main content Accessibility help
×
Home

The Effect of Ionic Liquid Uptake and Self-assembled Conductive Network Composite Layers on NafionTM based Ionic Polymer Metal Composite Electromechanical Bending Actuators

  • Dong Wang (a1), Reza Montazami (a2) and James R. Heflin (a1)

Abstract

Ionic liquid (IL) is used as the working electrolyte in ionic polymer metal composite (IPMC) electromechanical bending actuators because of its high stability and conductivity, which are crucial for the consistency and speed of the actuation. Because the bending actuation is caused by the migration and accumulation of the cations and anions of the IL, it is clear that both the overall number of ions and the effectiveness of ion transport and accumulation play important roles in the actuation behavior. In this paper, the effect of enhancing the ion accumulation by the self-assembled conductive network composite (CNC) layers is investigated by comparing the bending behavior of actuators with and without CNC layers. In addition, IPMC actuators with various IL uptakes are also tested in order to study the dependence of the bending performance on the amount of the ions available. It is found that, with the CNC layers, the maximum bending curvature of the actuator increases with increased IL, which shows the crucial role played by the IL. However, under the same conditions, the performance improvement of actuators without CNC layers saturates when the IL uptake reaches around 10% wt. This demonstrates the role of the CNC layers to provide a porous electrode with increased capacitance that thus accommodates accumulation of more ions near the electrodes, which in turn boosts the overall bending curvature of the actuator.

Copyright

References

Hide All
[1] Eikerling, M., et al. ., “Electrophysical properties of polymer electrolyte membranes: A random network model,” Journal of Physical Chemistry B, vol. 101, pp. 1080710820, Dec 11 1997.
[2] Nemat-Nasser, S., “Micromechanics of actuation of ionic polymer-metal composites,” Journal of Applied Physics, vol. 92, pp. 28992915, 2002.
[3] Bennett, M. D. and Leo, D. J., “Ionic liquids as stable solvents for ionic polymer transducers,” Sensors and Actuators a-Physical, vol. 115, pp. 7990, Sep 15 2004.
[4] Liu, Y., et al. ., “Ion transport and storage of ionic liquids in ionic polymer conductor network composites,” Applied Physics Letters, vol. 96, May 31 2010.

Keywords

Related content

Powered by UNSILO

The Effect of Ionic Liquid Uptake and Self-assembled Conductive Network Composite Layers on NafionTM based Ionic Polymer Metal Composite Electromechanical Bending Actuators

  • Dong Wang (a1), Reza Montazami (a2) and James R. Heflin (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.