Stimuli-responsive microfiber-bundle actuator with hierarchical alignment

S. Nakajima, R. Kawano, H. Onoe
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Abstract

This paper describes a stimuli-responsive microfiber-bundle actuator that has hierarchical alignment from molecular scale to macroscopic scale. We succeeded in aligning the orientation of molecular scale polymer chains in the stimuli-responsive hydrogel microfiber, which enhances the shrinkage of axial direction of the microfiber. We also bundled the microfibers and constructed a macro-scale bundled microfiber. The actuation of the bundled microfiber was confirmed by stimulating with temperature. We believe that this approach could enhance the performance of functional polymer materials for applications such as biomimetic actuators and soft robots.
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具有层次对准的刺激响应微纤维束致动器
本文描述了一种从分子尺度到宏观尺度具有层次排列的刺激响应微纤维束致动器。我们成功地在刺激响应水凝胶微纤维中调整了分子尺度聚合物链的取向,从而增强了微纤维的轴向收缩。我们还对微纤维进行了捆扎,构建了宏观尺度的捆扎微纤维。通过温度刺激证实了束状超细纤维的致动作用。我们相信,这种方法可以提高功能高分子材料的性能,如仿生致动器和软机器人的应用。
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