Optimum Condition of Anisotropic Plasma Etching for Improving Bending Properties of Ionic Polymer-Metal Composites
Abstract:We presented an anisotropic plasma etching technique by reactive ion etcher (RIE) as a new pre-treatment method of fabrication of ionic polymer-metal composite (IPMC). We already found that the new technique provided large displacement to the fabricated IPMC in the presence of low applied voltage. However, we did not examine the optimum condition for the anisotropic plasma etching. In this research, we tried to figure out optimum treatment condition of film in etcher. Nafion™ (by DuPont) films were etched using various etching time and shadow masks with various slit and space sizes. The etched samples were plated with Pt at top and bottom side by Oguro's reduction method. The surface morphology of fabricated IPMCs was characterized by SEM. And, we've measured surface resistance, bending displacement, and driving force in order to check the IPMC properties out. Here, we found that optimum condition for pre-treatment of Nafion was 1 min for etching time under shadow mask with 200 m slit and 100 m space.
Document Type: Research Article
Publication date: May 1, 2010
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