论文部分内容阅读
离子聚合物金属复合材料(Ionic Polymer-Metal Composite,IPMC)是一种新型智能材料,在较低电场作用下能够发生形变,由其构成的致动器具有致动方式简单、效率高、致动电压低、操作安全及质量轻等优点,在软性机械致动器、应力传感器、人工肌肉、生物医用和仿生材料等方面有广泛的应用前景。以EVOH-g-SO3H交联膜为离子聚合物基体,采用化学还原工艺制备出了IPMC,讨论了化学还原的制备工艺和机理,利用电子显微镜对IPMC的表面和断面电极形貌进行了表征。结果表明,EVOH-g-SO3H交联膜两侧形成了厚度约为20μm的电极层;一次、二次、三次化学还原的IPMC电极厚度分别为17.59μm、24.81μm、28.32μm,且经多次化学还原后IPMC的电极层致密性和平整性比一次化学还原的好。
Ionic Polymer-Metal Composite (IPMC) is a new type of smart material that can deform under the action of low electric field. The actuator composed of it has the advantages of simple actuation, high efficiency, Low operating safety and light weight. It has a wide range of applications in soft mechanical actuators, stress sensors, artificial muscles, biomedical and biomimetic materials. The IPMC was prepared by chemical reduction process using EVOH-g-SO3H crosslinked membrane as ionic polymer matrix. The preparation process and mechanism of chemical reduction were discussed. The surface and cross-sectional morphology of IPMC were characterized by electron microscope. The results showed that the thickness of the electrode layer was about 20μm on both sides of EVOH-g-SO3H cross-linked film. The thickness of IPMC electrodes were 17.59μm, 24.81μm and 28.32μm, After chemical reduction IPMC electrode layer density and flatness than a chemical reduction.