Ionic Liquid Nafion Nanofiber Mats Composites for High Speed Ionic Polymer Actuators

Akle, B.; Nah, C.; Kwak, S. K.; Kim, N.; Lyu, M.-Y.; Hwang, B.S.; Leo, D. J.

Ionic Liquid Nafion Nanofiber Mats Composites for High Speed Ionic Polymer Actuators

Akle, B.; Nah, C.; Kwak, S. K.; Kim, N.; Lyu, M.-Y.; Hwang, B.S.; Leo, D. J.

URI: http://hdl.handle.net/10725/4629

URL: http://www.scientific.net/KEM.334-335.1001

DOI: http://dx.doi.org/10.4028/www.scientific.net/KEM.334-335.1001

Date: 2016-10-17

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Abstract:

A new attempt is made for application of the NafionTM nanofiber mat prepared by the electrospinning process to solve the main disadvantage of slow response speed of ionomer-ionic liquid transducers. The measured conductivities of water hydrated Nafion electro-spun fibers are 16.8 mS/cm, which are lower than the nominal 110 mS/cm that of H+ Nafion membranes. The uptake is measured to be around 250 wt % compared to 58 wt % obtained in Nafion films. The ionic conductivity of 110 wt % swollen ionic liquids-Nafion mat composite is computed to be 0.9 mS/cm compared to 0.3 mS/cm in ionic liquid-Nafion membrane composite. The speed of response in actuators with an ionic liquid- NafionTM mat is 1.34 %/s compared to 0.88 %/s for that in ionic liquid NafionTM film transducers.

Citation:

Nah, C., Kwak, S. K., Kim, N., Lyu, M. Y., Hwang, B. S., Akle, B., & Leo, D. J. (2007). Ionic liquid Nafion nanofiber mats composites for high speed ionic polymer actuators. In Key Engineering Materials (Vol. 334, pp. 1001-1004). Trans Tech Publications.