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ۼ : 16-11-16 11:40
[2016.11]ڹ 1 Volt-Driven Superfast Polymer Actuators Based on Single Ion Conductors
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 ۾ :
ȸ : 1,120  

1 Volt-Driven Superfast Polymer Actuators Based on Single Ion Conductors



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߿Ͱ ΰ ȰDZ ؼ ӵ, , ʼ̴. ̿ 1V Ͽ ms ̳ mm ̵ ̴ Ʈ ߿͸ Ͽ. ̴ ̿ü ϴ 극 ߿Ϳ μ Ͽ. Ư, ʼ ̿ ũ ̿äο μ 5 Ұ 76 ̰ , ̿ 300 ̻ Ű ȹ . Ʈ ߿ʹ 20,000 Ŭ Ŀ Ծ ۵ ν . ̹ , ʳⰣ ߵ  ߿ͼ ޼ , 1V , 4mW Һ Ͽ и mm ̴ ̴. ߵ ߿ʹ ΰ Ӹ ƴ϶, پ ü ̽ Ȱ ɼ ϱ⿡ ǰ ũ.


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 1V 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.

 


 
 

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