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Proceedings Paper

Development of electroactive silicate nanocomposites prepared for use as ionic polymer-metal composites (IPMCs) artificial muscles and sensors
Author(s): Jaedo Nam; Jun-Ho Lee; Hyuk Ryul Choi; Hunmo Kim; Jaewook Jeon; Jason Paquette; Kwang J. Kim; Yong Suk Tak; Huifang Xu
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Paper Abstract

Nanocomposites are a new class of composites which are typically nanoparticle-filled polymers. One promising kind of nanocomposite is clay-based and polymer-layered silicates nanocomposites because the starting clay materials are naturally abundant and, also, their intercalation chemistry is well understood at the present time. A certain clay, Montmorillonite (MxAl4- xMgx)Si8O20$(OH4 has two-dimensional layers of their crystal structure lattice where the layer thickness is around 1 nm with the lateral dimension of approximately 30 nm to a few microns. These layers organize themselves to form stacks, so-called the Gallery through a van der Walls gap in between them. In this work, Montmorillonite (MMT) was modified by a cationic surfactant so as to lower its surface energy significantly. Such a process gave rise to favorable intercalation of nanoparticles within the galleries. The obtained XRD patterns and TEM images indicate that the silicate layers are completely and uniformly dispersed (nearly exfoliated) in a continuous polymer matrix of Nafion that has been successfully used as a starting material of ionic polymer-metal composites (IPMC's).

Paper Details

Date Published: 11 July 2002
PDF: 8 pages
Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); doi: 10.1117/12.475187
Show Author Affiliations
Jaedo Nam, Sung Kyun Kwan Univ. (South Korea)
Jun-Ho Lee, Sung Kyun Kwan Univ. (South Korea)
Hyuk Ryul Choi, Sung Kyun Kwan Univ. (South Korea)
Hunmo Kim, Sung Kyun Kwan Univ. (South Korea)
Jaewook Jeon, Sung Kyun Kwan Univ. (South Korea)
Jason Paquette, Univ. of Nevada/Reno (United States)
Kwang J. Kim, Univ. of Nevada/Reno (United States)
Yong Suk Tak, Inha Univ. (South Korea)
Huifang Xu, Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 4695:
Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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