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首页> 外文期刊>Nature Communications >One-volt-driven superfast polymer actuators based on single-ion conductors
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One-volt-driven superfast polymer actuators based on single-ion conductors

机译:基于单离子导体的一伏驱动超快聚合物执行器

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The key challenges in the advancement of actuator technologies related to artificial muscles include fast-response time, low operation voltages and durability. Although several researchers have tackled these challenges over the last few decades, no breakthrough has been made. Here we describe a platform for the development of soft actuators that moves a few millimetres under 1?V in air, with a superfast response time of tens of milliseconds. An essential component of this actuator is the single-ion-conducting polymers that contain well-defined ionic domains through the introduction of zwitterions; this achieved an exceptionally high dielectric constant of 76 and a 300-fold enhancement in ionic conductivity. Moreover, the actuator demonstrated long-term durability, with negligible changes in the actuator stroke over 20,000 cycles in air. Owing to its low-power consumption (only 4?mW), we believe that this actuator could pave the way for cutting-edge biomimetic technologies in the future.
机译:与人造肌肉相关的执行器技术进步的关键挑战包括快速响应时间,低操作电压和耐用性。尽管在过去的几十年中,一些研究人员已经解决了这些挑战,但是并没有取得任何突破。在这里,我们描述了一种用于开发软致动器的平台,该软致动器可以在空气中1?V下移动几毫米,并具有数十毫秒的超快响应时间。该致动器的基本组成部分是通过引入两性离子而包含定义明确的离子域的单离子导电聚合物。这实现了76的极高介电常数,离子电导率提高了300倍。此外,执行器具有长期的耐用性,在空气中20,000个循环内执行器冲程的变化可忽略不计。由于其低功耗(仅4?mW),我们相信该执行器可以为将来的尖端仿生技术铺平道路。

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