Fundamental Study of Application of Piezoelectric Chiral Polymer to Actuator

在这项研究中，我们提出了一种利用剪切压电聚L-乳酸(PLLA)薄膜实现物体旋转的新技术。我们强调，在所提出的装置中没有特殊的复杂机械部件，只使用在两个膜表面都有电极的PLLA膜。此外，我们也不需要具有特定纵横比的PLLA薄膜。然而，我们必须从实验上确认旋转的驱动力。未来，将有必要进行定量实验来澄清旋转现象。另一方面，我们认为，我们的实验结果表明，利用可生物降解的手性压电聚合物如PLLA薄膜实现新型软驱动器的可能性很大。

In this study, we proposed a new technique for realizing the rotation of an object using a shear piezoelectric poly(L-lactic acid) (PLLA) film. We emphasize that there are no special complex mechanical parts in the proposed device, only using a PLLA film with an electrode on both film surfaces. Also, we do not need a PLLA film with a certain aspect ratio. However, we must experimentally confirm the driving force for the rotation. In the future, quantitative experiments will be necessary to clarify the phenomenon of rotation. On the other hand, we consider that our experimental results in this study indicate the strong possibility of realizing a new soft actuator using biodegradable chiral piezoelectric polymers such as PLLA films.