Morphology characterization and failure mechanism investigation of Ag-IPMC

作者：Xu Yan^*; Zhao Gang; Zhu Yuming; Sun Zhuangzhi

来源：Ionics, 2015, 21(4): 1089-1094.

DOI：10.1007/s11581-014-1276-z

• IPMC
• Actuating characteristic
• Scanning electron microscope
• Microstructure
• Failure mechanism

In order to prolong the service life and to identify the failure mechanism of ionic polymer metal composites (IPMC), Ag-IPMC strips were prepared and were analyzed experimentally and through simulations to investigate the actuating characteristic of IPMC. The surface morphology of active and inactive Ag-IPMC is characterized by electron microscope to analyze the change rules of surface microstructure before and after the failure of IPMC and study the influence of surface microstructure changes on movement failure. Results indicate that the clad layer of active Ag-IPMC surfaces is prepared well, and the Ag-cladded layer has a good electrical conductivity, which provides an environment of steady electric field for the ion exchange in inophragma; the Ag-cladded layer of Ag-IPMC surfaces is destroyed under the effect of current, making the structure of the clad layer to generate the structure similar to fracture and to increase the contact resistance of Ag-IPMC surfaces, leading to the failure of Ag-IPMC.

• 出版日期2015-4
• 单位哈尔滨工程大学