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.
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21 February 2021
Research Article|
February 17 2021
A foldable compact actuator based on an oxetane liquid crystal network
Special Collection:
Programmable Liquid Crystal Elastomers
Davey C. Hoekstra
;
Davey C. Hoekstra
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
2
Institute for Complex Molecular Systems, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
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Patricia P. M. Visser;
Patricia P. M. Visser
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
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Simon J. A. Houben;
Simon J. A. Houben
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
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Johan Lub
;
Johan Lub
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
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Michael G. Debije
;
Michael G. Debije
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
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Albert P. H. J. Schenning
Albert P. H. J. Schenning
a)
1
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
2
Institute for Complex Molecular Systems, Eindhoven University of Technology
, Groene Loper 5, 5612 AE Eindhoven, The Netherlands
a)Author to whom correspondence should be addressed: a.p.h.j.schenning@tue.nl
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a)Author to whom correspondence should be addressed: a.p.h.j.schenning@tue.nl
Note: This paper is part of the Special Topic on Programmable Liquid Crystal Elastomers.
J. Appl. Phys. 129, 075101 (2021)
Article history
Received:
December 10 2020
Accepted:
February 04 2021
Citation
Davey C. Hoekstra, Patricia P. M. Visser, Simon J. A. Houben, Johan Lub, Michael G. Debije, Albert P. H. J. Schenning; A foldable compact actuator based on an oxetane liquid crystal network. J. Appl. Phys. 21 February 2021; 129 (7): 075101. https://doi.org/10.1063/5.0039965
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