Improving the torsion performance of IPMC by changing the electrode separation

Bing Xu,Xintao Wu,Zifeng Zhang,Jing Ling,Shihu Wang

doi:10.1038/s41598-021-87347-z

Bing Xu, Xintao Wu + Show 3 more

Open Access

https://doi.org/10.1038/s41598-021-87347-z

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Journal: Scientific Reports	Publication Date: Apr 7, 2021
Citations: 4	License type: open-access

Affiliation: Hefei University, Yangtze Normal University

Abstract

Ionic polymer metal composites (IPMCs) are widely studied as actuators and sensors, due to their large bending motion, flexibility and being light-weight. Nowadays, IPMCs are used in the bionic field, for example, to achieve bending and twisting movements of wings and fins. In this paper, a method is proposed to optimize the torsion performance of IPMCs by changing the electrode separation. The IPMCs with patterned electrode fabricated by masking technique are proposed to accomplish twisting motion. The result indicates that the torsion performance is improved as the electrode separation increased. Thereby it provides a new strategy for the bionic field with twisting behavior.

Highlights

Name Nafion film [Pt(NH3)4]Cl2 powder H2SO4 H2O2 NaBH4 Hydrazine hydrate Hydroxylammonium chloride Ammonium hydroxide LiCl solution De-ionized water
Materials used in the experiment are shown in Nafion membrane is covered with masking tapes, and the IPMC with patterned electrodes is fabricated by electroless chemical reduction
The IPMC was gripped above the ruler (1 mm per grid), the twisting motion was recorded by a digital camera, and the data of twist angle would acquired by an image processing system

Summary

Introduction

Name Nafion film [Pt(NH3)4]Cl2 powder H2SO4 H2O2 NaBH4 Hydrazine hydrate Hydroxylammonium chloride Ammonium hydroxide LiCl solution De-ionized water. Experiment Fabrication of IPMC with patterned electrodes. Materials used in the experiment are shown in Nafion membrane is covered with masking tapes, and the IPMC with patterned electrodes is fabricated by electroless chemical reduction. In order to metalize platinum particles on the surface of the membrane, the reducing agent N aBH4 (5%) was added to the solution. Before the second reduction reaction, the membrane was cleaned in an ultrasonic cleaner for half an hour. Hydrazine hydrate solution (20%) and hydroxylammonium chloride solution (5%) were added to the mixed solution of tetraammineplatinum chloride hydrate and 5% ammonium hydroxide to complete the reduction reaction. The IPMC samples were washed with deionized water and stored in LiCl solution (1 mol/L)

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