Electrically Controllable Biomimetic Actuators Made with Multiwalled Carbon Nanotube(MWNT) Loaded Ionomeric Nanocomposites

Deuk Yong Lee; Seok Heo; Kwang Jin Kim; D. Kim; Myung Hyun Lee; Se Jong Lee

doi:10.4028/www.scientific.net/KEM.284-286.733

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 284-286Electrically Controllable Biomimetic Actuators...

Electrically Controllable Biomimetic Actuators Made with Multiwalled Carbon Nanotube(MWNT) Loaded Ionomeric Nanocomposites

Abstract:

Biomimetic actuators that can produce soft-actuation but large force generation capability are of interest. Nafion, an effective ionomeric material from DuPont, has been shown to produce large deformation under low electric fields (<10V/mm). This response is caused by a direct electro-osmotic effect due to the existence and mobility of cations and subsequent swelling and deswelling of the material. In this effort, multiwalled carbon nanotube (MWNT)/Nafion nanocomposites were prepared by a casting in order to investigate the effect of MWNT loading in the range of 0 to 7 wt% on electromechanical properties of the MWNT/Nafion nanocomposites. The measured elastic modulus and actuation force of the MWNT/Nafion nanocomposites are drastically different, showing larger elastic modulus and improved electromechanical coupling, from the one without MWNT, implying that the effective MWNT loading is crucial to develop high-performance biomimetic actuators.

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Periodical:

Key Engineering Materials (Volumes 284-286)

Pages:

733-736

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.284-286.733

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Online since:

April 2005

Authors:

Deuk Yong Lee, Seok Heo, Kwang Jin Kim, D. Kim, Myung Hyun Lee, Se Jong Lee

Keywords:

Electro Active Polymer, Multi-Walled Carbon Nanotube (MWCNT), Nanocomposite

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