4D Printing of Freestanding Liquid Crystal Elastomers via Hybrid Additive Manufacturing

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 39 vom: 05. Sept., Seite e2204890
1. Verfasser: Peng, Xirui (VerfasserIn)
Weitere Verfasser: Wu, Shuai, Sun, Xiaohao, Yue, Liang, Montgomery, S Macrae, Demoly, Frédéric, Zhou, Kun, Zhao, Ruike Renee, Qi, H Jerry
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article 4D printing hybrid 3D printing liquid crystal elastomers multimaterial 3D printing soft robots
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520 |a Liquid crystal elastomers (LCE) are appealing candidates among active materials for 4D printing, due to their reversible, programmable and rapid actuation capabilities. Recent progress has been made on direct ink writing (DIW) or Digital Light Processing (DLP) to print LCEs with certain actuation. However, it remains a challenge to achieve complicated structures, such as spatial lattices with large actuation, due to the limitation of printing LCEs on the build platform or the previous layer. Herein, a novel method to 4D print freestanding LCEs on-the-fly by using laser-assisted DIW with an actuation strain up to -40% is proposed. This process is further hybridized with the DLP method for optional structural or removable supports to create active 3D architectures in a one-step additive process. Various objects, including hybrid active lattices, active tensegrity, an actuator with tunable stability, and 3D spatial LCE lattices, can be additively fabricated. The combination of DIW-printed functionally freestanding LCEs with the DLP-printed supporting structures thus provides new design freedom and fabrication capability for applications including soft robotics, smart structures, active metamaterials, and smart wearable devices 
650 4 |a Journal Article 
650 4 |a 4D printing 
650 4 |a hybrid 3D printing 
650 4 |a liquid crystal elastomers 
650 4 |a multimaterial 3D printing 
650 4 |a soft robots 
700 1 |a Wu, Shuai  |e verfasserin  |4 aut 
700 1 |a Sun, Xiaohao  |e verfasserin  |4 aut 
700 1 |a Yue, Liang  |e verfasserin  |4 aut 
700 1 |a Montgomery, S Macrae  |e verfasserin  |4 aut 
700 1 |a Demoly, Frédéric  |e verfasserin  |4 aut 
700 1 |a Zhou, Kun  |e verfasserin  |4 aut 
700 1 |a Zhao, Ruike Renee  |e verfasserin  |4 aut 
700 1 |a Qi, H Jerry  |e verfasserin  |4 aut 
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773 1 8 |g volume:34  |g year:2022  |g number:39  |g day:05  |g month:09  |g pages:e2204890 
856 4 0 |u http://dx.doi.org/10.1002/adma.202204890  |3 Volltext 
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