离子聚合物胶体的电化学-力学耦合模型及数值方法  

Coupled Electro-Chemo-Mechanical Formulation for Ionic Polymer Gel

作　　者：林銮[1] 杨庆生[1] 

机构地区：[1]北京工业大学工程力学部,北京100022

出　　处：《宇航材料工艺》2008年第1期31-34,共4页Aerospace Materials & Technology

基　　金：国家自然科学基金(10272006,30470439);北京市中青年骨干教师培养计划专项资助

摘　　要：离子聚合物胶体中充满着液体,并能吸附电荷,在外部化学场或电场的激励下,能产生巨大的膨胀。由于这些特性,离子聚合物可以作为电化学-力学驱动器。本文采用电化学-力学多场耦合数学模型,并应用有限元法进行了数值计算。计算结果表明该模型能很好地模拟离子聚合物在电场作用下的离子重分布和胶体的膨胀与收缩行为,同时能计算胶体中离子浓度。Ionic polymer gel consists of attached electric charges and a liquid phase and is distinguished by enormous swelling capabilities under the external physical and chemical stimuli.For these unique properties,ionic polymer gel can be taken as electro-chemo-mechanical actuators.In this paper,electro-chemo-mechanical multi-field formulation is presented and finite element method is applied to numerical simulation.The result indicates that the model is able to simulate ionic redistribution of ionic polymer in el...

关 键 词：离子聚合物胶体 电化学-力学耦合 质量扩散方程 

分 类 号：TB324[一般工业技术—材料科学与工程]