基于团簇微观结构分析的离子电活性聚合物驱动特性  

Actuation characteristics of ionic electroactive polymers based on cluster microstructure analysis

作　　者：王红 杨亮 杨延宁[1] WANG Hong;YANG Liang;YANG Yanning(School of Physics and Electronic Information,Yan'an University,Yan'an 716000,China)

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000

出　　处：《中南大学学报（自然科学版）》2024年第1期106-115,共10页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(52365069);陕西省教育厅科学研究计划项目(23JK0730);延安大学博士科研启动基金资助项目(YDBK2021-09,YDBK2023-09)。

摘　　要：首先,对离子交换膜吸附水分子微观过程进行分析,并结合团簇结构揭示离子电活性聚合物的传质动力学特性;其次,基于溶胀理论研究团簇受力情况,依据几何变形特点和变形传质机理建立物理模型;最后,对得到的驱动模型进行验证和分析讨论。研究结果表明:本文模型所得结果和实验结果较吻合。含水量对离子交换膜团簇通道的形成有重要影响,阳离子的迁移以及水分子运动是离子交换膜驱动的主控因素。随着阳离子浓度和水分子浓度增加,静水压力、渗透压力以及静电压力均逐渐增大,渗透压力对离子电活性聚合物弯曲变形起主导作用。Firstly,analysis of the microscopic process of water molecule adsorption by ion-exchange membranes was carried out and the mass transfer kinetics of ion-electrically active polymers in the context of cluster structure was revealed.Secondly,physical model based on the geometrical deformation characteristics and deformation mass transfer mechanism was established,and the force on the clusters was studied based on the dissolution theory.Finally,the obtained model was experimentally validated and analytically discussed.The results show that the proposed actuation model result matches well with the experimental result.The water content has an important influence on the formation of cluster channels in ion exchange membranes,and the migration of cations and the movement of water molecules are the main controlling factors leading to the actuation of ion exchange membranes.The hydrostatic,osmotic and electrostatic pressures increase with the increase of the cation and water molecule concentrations,and the osmotic pressure plays dominant role in the bending and deformation of ion-electrically active polymers.

关 键 词：离子聚合物金属复合材料 团簇微观结构 软体机器人 驱动特性 

分 类 号：TB381[一般工业技术—材料科学与工程]