| Project/Area Number |
17K05983
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Organic and hybrid materials
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Naohiro Terasawa 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (10357543)
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| Project Period (FY) |
2017-04-01 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | actuator / アクチュエータ / 有機材料化学 / 電子・電気材料 |
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| Outline of Final Research Achievements |
This research presents the development of new hybrid-type poly(3,4-ethylenedioxythiophene) (PEDOT) actuators produced, in which both electrostatic double-layer (EDLC) and faradaic capacitors (FCs) occur simultaneously. The electrochemical and electromechanical properties of PEDOT:poly(4-styrenesulfonate)(PSS):PSS/ionic liquid (IL), and PEDOT:PSS/single-walled carbon nanotubes (SWCNTs)/IL actuators were developed. It is found that the PEDOT:PSS/SWCNT/IL actuator provides a better actuation strain performance, as its electrode is an electrochemical capacitor (EC) composed of an EDLC and FC. The PEDOT:PSS polymer helps produce a high specific capacitance, actuation strain and maximum generated stress that surpass the performance of a conventional PVdF(HFP) actuator. The flexible and robust films created by the synergistic combination of PEDOT and SWCNT may therefore have significant potential as actuator materials for wearable energy-conversion devices.
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| Academic Significance and Societal Importance of the Research Achievements |
誘電エラストマーや圧電アクチュエータが数kVの高電圧で駆動するのに対し、PEDOT・PSSハイブリッドアクチュエータは100 分の1の低電圧で駆動する。加えて、電磁アクチュエータやピエゾアクチュエータに比べ構造が単純なことから、微細化、軽量化、薄型化に適しており、イオン液体ゲルにすることにより、空気中で駆動する新規なEAP アクチュエータや人工筋肉として、センサやバルブ、スイッチ、ポンプ（工学）の他、能動カテーテルやガイドワイヤー（医療）、指触ディスプレイ（福祉）、パワーアシストスーツ（介護）等への応用が見通せた。
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