A foldable compact actuator based on an oxetane liquid crystal network
A foldable compact actuator based on an oxetane liquid crystal network
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DOI：
10.1063/5.0039965
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发表时间：
2021-02-21
影响因子：
3.2
通讯作者：
Schenning, Albert P. H. J.
中科院分区：
文献类型：
--
作者：
Hoekstra, Davey C.;Visser, Patricia P. M.;Schenning, Albert P. H. J.
报道了一种基于氧杂环丁烷反应性单体的可折叠、紧凑型液晶驱动器的制备。独立式液晶网络膜是光学透明的、柔性的，并且具有容易调节的各向异性热和机械性能。氧杂环丁烷液晶网络表现出优异的单向形状记忆性能，具有良好的暂时形状固定和完全形状恢复。此外，氧杂环丁烷液晶网络的柔性聚醚主链导致大的双向弯曲致动，致动器显示旋转反转并进行多次旋转。两个致动机构可以组合以形成致动器，该致动器可以在使用之前在完全恢复到其原始形状之前暂时折叠。因此，氧杂环丁烷液晶网络作为可折叠的、紧凑的致动器具有很大的潜力。
The fabrication of a foldable, compact liquid crystal actuator based on oxetane reactive monomers is reported. The free-standing liquid crystal network films are optically clear, flexible, and have easily tunable anisotropic thermal and mechanical properties. The oxetane liquid crystal networks demonstrate excellent one-way shape memory properties, with good temporary shape fixation and complete shape recovery. In addition, the flexible polyether backbone of the oxetane liquid crystal networks results in large two-way bending actuation, with the actuators showing rotation inversion and making multiple rotations. Both actuation mechanisms could be combined to form actuators that can be temporarily folded before fully recovering to their original shape prior to use. As a result, the oxetane liquid crystal networks have great potential as foldable, compact actuators.