A Simple Demonstration of Reversible Transformation between the Programed 2D Structures and 3D Actuators
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초록
내용
Two types of polymers (acrylic rubber and polyimide) were selected to prepare three-dimensional (3D) actuators transformed from the programmed 2D structures. Taking into account the different volume expansion properties of two polymer and structural symmetry, various 2D structures were programmed and transformed to 3D actuators such as roll, helical, and cubic actuators. Furthermore, 3D actuators with more complex shapes were precisely fabricated by combining bending, twisting and folding transformations. This study provides a simple method to fabricate polymer gel actuators with desired shapes and can be applied to educational activity. This work was supported by BRL Program (2020R1A4A1018259), Mistry of Trade, Industry, and Energy (20011031), and Basic Science Research Program (NRF-2019R1A6A3A13092060) funded by the Ministry of Education.