Measurements and macro models of ionomeric polymer-metal composites (IPMC)

Xiaoqi Bao; Yoseph Bar-Cohen; Shyh-Shiuh Lih

doi:10.1117/12.475167

11 July 2002 Measurements and macro models of ionomeric polymer-metal composites (IPMC)

Xiaoqi Bao, Yoseph Bar-Cohen, Shyh-Shiuh Lih

Proceedings Volume 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD); (2002) https://doi.org/10.1117/12.475167
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

Ionomeric Polymer-Metal Composites (IPMC) are attractive type of electroactive polymer actuation materials because of their characteristics of large electrically induced bending, mechanical flexibility, low excitation voltage, low density, and ease of fabrication. The diffusion of ions between the electrodes causes the material to bend. The unique features of the IPMC materials and their need for special operating environment require new approaches to measuring their characteristics. A macro model that relates the electric input and mechanical output is required for the material characterization and application. This paper addresses the macro models for the electric inputs and electromechanical actuation of IPMC. A distributed RC line model is developed to describe the varying capacitance of the electric input behavior and a four-parameter model to express the relaxation phenomena. The power capacities of the IPMCs are estimated according to the established models and the measured results. Results for several types of IPMCs, which present different behaviors, are presented.

Citation Download Citation

Xiaoqi Bao, Yoseph Bar-Cohen, and Shyh-Shiuh Lih "Measurements and macro models of ionomeric polymer-metal composites (IPMC)", Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); https://doi.org/10.1117/12.475167

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