Chinese Journal of Liquid Crystals and Displays, Volume. 39, Issue 3, 257(2024)

4D printed programmable deformable liquid metal-liquid crystal elastomer soft actuator

Faxin WANG1, Huan ZHANG1, Yuanhao CHEN1, Le YANG1, Ran BI1, Yongtao SHEN1, Wei FENG1, and Ling WANG1,2、*
Author Affiliations
  • 1School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
  • 2Binhai Industrial Research Institute, Tianjin University, Tianjin 300452, China
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    To obtain liquid crystal elastomer with shape-programmable ability and improve its application potential in soft actuators and soft robots, this work reports a light driven soft actuator based on liquid metal (LM)-liquid crystal elastomer (LCE). The soft actuator is fabricated by 4D printing technology, which endows the actuator robust shape-programmable capability.LM was dispersed in ethanol by sonication, then LM micro-particles were mixed into the liquid crystal solution to obtain uniform LM-LCE ink. Using 4D printing technique, the soft actuator with specific deformation was eventually obtained by further programming the orientation of ink. The alternating orthogonal and conical array LM-LCE soft actuators were created via 4D printing. The actuator has good photothermal performance, when exposed to 808 nm infrared laser, its surface temperature can reach above 120 °C in about 10 s. According to the superior photothermal performance, the alternating orthogonal structure actuator is capable of producing bending deformation quickly, while the conical array structure actuator can produce a convex deformation with the spiral center as the vertex.Based on 4D printing technology, the LM-LCE light-driven soft actuator has robust shape-programmable capability, demonstrating better adaptability and adjustability in dynamic and complex environments, and is anticipated to be extensively used in the fields of medical treatment, military, and soft robot.

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    Faxin WANG, Huan ZHANG, Yuanhao CHEN, Le YANG, Ran BI, Yongtao SHEN, Wei FENG, Ling WANG. 4D printed programmable deformable liquid metal-liquid crystal elastomer soft actuator[J]. Chinese Journal of Liquid Crystals and Displays, 2024, 39(3): 257

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    Paper Information

    Category: Research Articles

    Received: Jul. 13, 2023

    Accepted: --

    Published Online: Apr. 29, 2024

    The Author Email: Ling WANG (lwang17@tju.edu.cn)

    DOI:10.37188/CJLCD.2023-0243

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