纳米钛酸钡改性IPMC的电流变机理及力学行为研究

项目名称： 纳米钛酸钡改性IPMC的电流变机理及力学行为研究

项目编号： No.11502109

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 卞侃

作者单位： 南京航空航天大学

项目金额： 22万元

中文摘要： 离子聚合物金属复合材料（IPMC）是一种基于水合阳离子迁移效应的电致动活性聚合物材料，是智能材料与结构领域中的研究热点之一，在航空航天、仿生驱动、医学等领域具有广泛的应用前景。IPMC聚合物吸水后形成的是类悬浮液体系，本项目提出在IPMC聚合物基体中添加纳米BaTiO3粒子，借助纳米BaTiO3粒子在类悬浮液体系中的电流变效应，复合成为具有双致动效应的BaTiO3增强型IPMC（BT/IPMC）。研究纳米BaTiO3粒子在类悬浮液体系中的电流变机理，以及BaTiO3掺杂量对BT/IPMC基本力学性能和电致动性能的影响，包括对BT/IPMC强度、响应速度、变形量以及驱动力等的定量描述；探讨电场作用下，水合阳离子迁移和纳米BaTiO3粒子成纤化有序排列之间的耦合作用机理，进而建立BT/IPMC在双致动效应下的力－电耦合模型，为高性能BT/IPMC新型电致动材料的应用奠定理论和实验基础。

中文关键词： 离子聚合物金属复合材料；钛酸钡；电流变；双致动效应；力电耦合建模

英文摘要： As an electro-active smart material based on the migration of hydrated cations, Ionic Polymer-Metal Composite（IPMC）is one of the research hotspots in smart materials and structures and has wide prospects in aerospace, bionic driving and medical areas. IPMC can form a suspension system after absorbing water, so in this project, nano BaTiO3 particles are added into IPMC basic membrane, a BaTiO3 enhanced IPMC (BT/IPMC) new electro-active smart materials is produced due to the electro-rheological effect of BaTiO3 in a suspension system. The project will focus on the study of electro-rheological mechanics of BaTiO3 in a suspension system for BT/IPMC, and investigate the influence of the adding amount of BT on the basic mechanical properties and electric actuation properties of IPMC as well as quantitatively describe the strength, response speed, deformation amount and actuation forces of BT/IPMC. The coupling effects of the migration of hydrated cations and ordering arrangement of BaTiO3 under electric field will be studied. At last, the mechanic electric transformation model of BT/IPMC will be established and simplified, which will provide beneficial theoretical and experimental basis for the application of this BaTiO3 enhanced IPMC new electro-active smart material.

英文关键词： Ionic Polymer-Metal Composite ;Barium Titanate;Electro-rheologic;Double Actuating Effects;Electromechanical CouplingModel