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首页> 外文会议>Twelfth International Conference on Adaptive Structures and Technologies, Oct 15-17, 2001, University of Maryland >CHEMOELECTRIC AND ELECTROMECHANICAL MODELING OF IONIC POLYMER MATERIALS
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CHEMOELECTRIC AND ELECTROMECHANICAL MODELING OF IONIC POLYMER MATERIALS

机译：离子高分子材料的化学和机电建模

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摘要

Ion-exchange membranes known as ionic polymers exhibit both chemoelectric and electromechanical transduction properties. Ionic polymers are the base materials for proton-exchange membrane fuel cells, and several years ago it was shown that these materials exhibited electromechanical sensing and actuation properties. In this paper, we develop charge and water transport models for the purpose of modeling both chemoelectric and electromechanical transduction properties in ionic polymers. Expressions for steady-state chemoelectric transduction are developed from previous work in fuel cell modeling. The same continuity and conservation expressions are used to model electromechanical transduction in ionic polymer materials. Analysis of the nonlinear coupled expressions demonstrates that the transient electromechanical response cannot be modeled without assuming water flow within the polymer. It is also shown that the nonlinear expressions reduce to a set of linear expressions only under the assumptions of steady-state operation and zero concentration gradient.
机译：被称为离子聚合物的离子交换膜同时具有化学电和机电转换特性。离子聚合物是质子交换膜燃料电池的基础材料，几年前，研究表明这些材料具有机电传感和驱动特性。在本文中，我们开发电荷和水传输模型，以对离子聚合物中的化学电和机电转换特性进行建模。稳态化学电转导的表达式是根据燃料电池建模中的先前工作开发的。相同的连续性和守恒表达式用于模拟离子聚合物材料中的机电转换。对非线性耦合表达式的分析表明，如果不假设聚合物中有水流，则无法对瞬态机电响应进行建模。还表明，仅在稳态操作和零浓度梯度的假设下，非线性表达式才缩减为一组线性表达式。

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