CTF-based soft touch actuator for playing electronic piano
| Autor: | Saewoong Oh, Wonjun Hwang, Manmatha Mahato, Il-Kwon Oh, Sanghee Nam, Rassoul Tabassian, Van Hiep Nguyen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Acoustics Science Soft robotics General Physics and Astronomy 02 engineering and technology Bending 010402 general chemistry 01 natural sciences General Biochemistry Genetics and Molecular Biology Displacement (vector) Article lcsh:Science Group delay and phase delay Multidisciplinary Soft materials General Chemistry 021001 nanoscience & nanotechnology Mechanical engineering 0104 chemical sciences Electrode Artificial muscle lcsh:Q 0210 nano-technology Actuator Voltage |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-15 (2020) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | In the field of bioinspired soft robotics, to accomplish sophisticated tasks in human fingers, electroactive artificial muscles are under development. However, most existing actuators show a lack of high bending displacement and irregular response characteristics under low input voltages. Here, based on metal free covalent triazine frameworks (CTFs), we report an electro-ionic soft actuator that shows high bending deformation under ultralow input voltages that can be implemented as a soft robotic touch finger on fragile displays. The as-synthesized CTFs, derived from a polymer of intrinsic microporosity (PIM-1), were combined with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) to make a flexible electrode for a high-performance electro-ionic soft actuator. The proposed soft touch finger showed high peak-to-peak displacement of 17.0 mm under ultralow square voltage of ±0.5 V, with 0.1 Hz frequency and 4 times reduced phase delay in harmonic response compared with that of a pure PEDOT-PSS-based actuator. The significant actuation performance is mainly due to the unique physical and chemical configurations of CTFs electrode with highly porous and electrically conjugated networks. On a fragile display, the developed soft robotic touch finger array was successfully used to perform soft touching, similar to that of a real human finger; device was used to accomplish a precise task, playing electronic piano. Actuators often show a lack of high bending displacement with back relaxation and irregular response characteristics under low input voltages. Here, the authors demonstrate a covalent triazine framework-based electroionic soft actuator that shows controllable high bending deformation under low input voltages. |
| Databáze: | OpenAIRE |
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