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首页> 外文会议>2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana >An Equivalent Circuit Model for Ionic Polymer-Metal Composites and Their Performance Improvement by a Clay-Based Polymer Nano-Composite Technique
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An Equivalent Circuit Model for Ionic Polymer-Metal Composites and Their Performance Improvement by a Clay-Based Polymer Nano-Composite Technique

机译：离子聚合物金属复合材料的等效电路模型及其基于粘土的聚合物纳米复合技术的性能改进

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摘要

Ionic Polymer-Metal Composite (IPMC) is a new class of polymeric material exhibiting large strain with inherent soft actuation. The observed motion characteristics of an IPMC subjected to an electric field is highly non-linear. This is believed to be due primarily to the particle electrodes on the IPMC surface, which is inherently both capacitive and resistive due to particle separation and density. Knowing that the value of resistivity and capacity can be manipulated by the number of metal platings applied to the IPMC, the force response of an IPMC when subjected to an imposed electric field is due to the interaction of an array of capacitors and resistors along with ionic migration. In this effort we attempt to incorporate a capacitive and resistive model into the previously developed linear irreversible thermodynamic model. The advantages of using such a model are ⅰ) the possible dynamic predictability of the material itself; and ⅱ) the realization of capacitive and resistive effect arising from the particle electrodes and the base polymer, respectively. The behavior of the proposed model can explain typical experimentally obtained values well. Also, an experimental effort to improve the properties of the base polymer was carried out by a novel nanocomposite technique. The experiment results on the current/voltage (I/V) curves indicate that the starting material of ionic polymer-metal composites (IPMCs) can be optimized to create effective polymer actuators.
机译：离子聚合物金属复合材料（IPMC）是一类新型的聚合物材料，具有固有的软驱动力，表现出较大的应变。观察到的IPMC受到电场的运动特性是高度非线性的。据信这主要归因于IPMC表面上的粒子电极，由于粒子的分离和密度，其固有地既具有电容性又具有电阻性。知道电阻率和电容的值可以通过施加到IPMC上的金属镀层的数量来控制，因此IPMC受到外加电场时的力响应归因于电容器和电阻器阵列以及离子的相互作用移民。在这项工作中，我们尝试将电容性和电阻性模型合并到先前开发的线性不可逆热力学模型中。使用这种模型的优点是：ⅰ）材料本身可能的动态可预测性； ⅱ）分别实现了粒子电极和基础聚合物产生的电容和电阻效应。该模型的行为可以很好地解释典型的实验获得的值。另外，通过新型纳米复合技术进行了改善基础聚合物性能的实验工作。电流/电压（I / V）曲线上的实验结果表明，可以优化离子聚合物-金属复合材料（IPMC）的原材料，以创建有效的聚合物致动器。

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