Processing and reprocessing liquid crystal elastomer actuators
Processing and reprocessing liquid crystal elastomer actuators
复制标题
加工和再加工液晶弹性体执行器
DOI：
10.1063/5.0044533
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发表时间：
2021-04-07
影响因子：
3.2
通讯作者：
Yakacki, Christopher M.
中科院分区：
文献类型：
--
作者：
Mistry, Devesh;Traugutt, Nicholas A.;Yakacki, Christopher M.
液晶弹性体(LCE)因其特殊的形状、驱动和机械性能而久负盛名。在过去半个世纪的大部分时间里，该领域的一个主要焦点一直是LCE化学的发展和如何处理所谓的“单区”构型。这项基础工作现在已经产生了大量的材料和工艺，使展示作为响应和可再处理执行器的接近真实世界适用性的设备成为可能。从这一角度出发，我们回顾和讨论了驱动LCE器件工艺方面的关键最新进展。我们考虑了如何使用加工来提高LCE形状致动的电、热和光刺激的实用性；动态化学如何增强LCE器件的功能和可持续性；以及新的添加剂制造技术正在如何克服曾经将LCE致动器限制在薄膜器件上的加工障碍。在我们的展望中，我们综合考虑所有这些因素，并讨论未来几年的发展最终将导致商业形状驱动LCE技术的实现。
Liquid crystal elastomers (LCEs) have long been celebrated for their exceptional shape actuation and mechanical properties. For much of the last half century, a major focus for the field has been the development of LCE chemistries and how to process the so-called "monodomain" configurations. This foundation work has now led to a plethora of materials and processes that are enabling the demonstration of devices that are close to real-world applicability as responsive and reprocessable actuators. In this Perspective, we review and discuss the key recent developments in the processing of actuating LCE devices. We consider how processing has been used to increase the practicality of electrical, thermal, and photo stimulation of LCE shape actuation; how dynamic chemistries are enhancing the functionality and sustainability of LCE devices; and how new additive manufacturing technologies are overcoming the processing barriers that once confined LCE actuators to thin film devices. In our outlook, we consider all these factors together and discuss what developments over the coming years will finally lead to the realization of commercial shape actuating LCE technologies.