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Preparation and performance of soft actuator
based on IPMC with silver electrodes |
| Qi CHEN,Ke XIONG,Kan BIAN,Ning JIN,Bangfeng WANG, |
| Aeronautical Science
Key Laboratory of Smart Materials & Structures, Nanjing University
of Aeronautic and Astronautic, Nanjing 210016, China; |
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Abstract The surface electrodes of traditional ionic polymer-metal composites (IPMC) are made of platinum. To reduce the production cost, nonprecious metals such as silver is proposed. A new approach of electroless silver plating based on chemical deposition method is adopted, getting two types of IPMCs, Pt-Ag IPMC, and Ag-Ag IPMC. The microscopic analysis, driving abilities tests, and their surface-electrode resistance analysis show that Ag and Pt particles penetrate inside Nafion membrane with gradient distribution throughout the membrane. The maximum electro-active bending deformation angles of the specimens, which are obtained under the same specimen dimension and constrains, are about 60° for Pt-Pt IPMC and Pt-Ag IPMC and 90° for the Ag-Ag IPMC, respectively, corresponding to the driving voltage of 3 V, 4 V, and 1.5 V. The surface-electrode resistance of Ag-Ag IPMC is the lowest and the most stable, which shows that the proposed approach is valid. The experiments show that the IPMC technology based on the silver electrode is feasible.
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| Keywords
ionic polymer-metal composites (IPMC)
Nafion
intelligent material
soft actuators
electroless silver plating
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Issue Date: 05 December 2009
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