Performance Enhancement of Aquivion-based Ionic Polymer Metal Composites for Cylindrical Actuators

IF 4.9 3区计算机科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Journal of Bionic Engineering Pub Date : 2024-07-02 DOI:10.1007/s42235-024-00564-w

Xiaojie Tong, Min Yu, Guoxiao Yin, Yuwei Wu, Chengbo Tian, Gengying Wang

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Abstract

As a kind of ionic artificial muscle material, Ionic Polymer–Metal Composites (IPMCs) have the advantages of a low drive current, light weight, and significant flexibility. IPMCs are widely used in the fields of biomedicine, soft robots, etc. However, the displacement and blocking force of the traditional sheet-type Nafion-IPMC need to be improved, and it has the limitation of unidirectional actuation. In this paper, a new type of short side chain Aquivion material is used as the polymer in the IPMC. The cylindrical IPMC is prepared by extrusion technology to improve its actuation performance and realize multi-degree-of-freedom motion. In comparison to the traditional Nafion-IPMC, the ion exchange capacity, specific capacitance, and conductivity of Aquivion-IPMC are improved by 28%, 27%, and 32%, respectively, and the displacement and blocking force are improved by 57% and 25%, respectively. The cylindrical actuators can be deflected in eight directions. This indicates that Aquivion, as a polymer membrane for IPMC, holds significant application potential. By designing a cylindrical IPMC electrode distribution, the multi-degree-of-freedom deflection of IPMC can be realized.

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提高用于圆柱形致动器的 Aquivion 基离子聚合物金属复合材料的性能

作为一种离子人工肌肉材料，离子聚合物金属复合材料（IPMC）具有驱动电流小、重量轻、柔韧性强等优点。IPMCs 被广泛应用于生物医学、软机器人等领域。然而，传统的片状 Nafion-IPMC 的位移和阻挡力有待改进，而且存在单向驱动的局限性。本文采用新型短侧链 Aquivion 材料作为 IPMC 的聚合物。通过挤压技术制备出圆柱形 IPMC，以改善其驱动性能并实现多自由度运动。与传统的 Nafion-IPMC 相比，Aquivion-IPMC 的离子交换容量、比电容和电导率分别提高了 28%、27% 和 32%，位移和阻挡力分别提高了 57% 和 25%。圆柱形致动器可在八个方向上偏转。这表明 Aquivion 作为用于 IPMC 的聚合物膜，具有巨大的应用潜力。通过设计圆柱形 IPMC 电极分布，可以实现 IPMC 的多自由度偏转。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Bionic Engineering 工程技术-材料科学：生物材料

CiteScore

7.10

自引率

10.00%

发文量

162

审稿时长

10.0 months

期刊介绍： The Journal of Bionic Engineering (JBE) is a peer-reviewed journal that publishes original research papers and reviews that apply the knowledge learned from nature and biological systems to solve concrete engineering problems. The topics that JBE covers include but are not limited to: Mechanisms, kinematical mechanics and control of animal locomotion, development of mobile robots with walking (running and crawling), swimming or flying abilities inspired by animal locomotion. Structures, morphologies, composition and physical properties of natural and biomaterials; fabrication of new materials mimicking the properties and functions of natural and biomaterials. Biomedical materials, artificial organs and tissue engineering for medical applications; rehabilitation equipment and devices. Development of bioinspired computation methods and artificial intelligence for engineering applications.