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Chemical mediated elasto-capillarity of elastic sheets
Soft Matter ( IF 2.9 ) Pub Date : 2017-09-11 00:00:00 , DOI: 10.1039/c7sm01575e
Jianlin Liu 1, 2, 3, 4, 5 , Yulong Gong 1, 2, 3, 4, 5 , Gaofeng Cao 1, 2, 3, 4, 5
Affiliation  

Capillary forces can cause outstanding deformation of slender structures, and this behavior holds great potential in a plethora of areas. In this study, we propose a facile strategy to mediate the deformation of elastic structures via chemicals, which is named chemo-elasto-capillarity. The experiment shows that the added surfactant can significantly change the interfacial energy of the system, and then modulate the configuration of the adhered structures. The wetted length and deflection of each sheet can be predicted using the large and infinitesimal deformation theory of beams, and these theoretical values are in excellent agreement with the experimental results. Moreover, the proposed method can be successfully extended to unfold two adhered sheets, and one racket like sheet. The present scheme is accessible to accurately regulate elasto-capillarity, and provide some inspirations for engineering some chemical-sensitive devices and humidity-stimulated actuators.

中文翻译:

化学介导的弹性片的弹性-毛细作用

毛细作用力会导致细长结构发生显着变形,这种行为在众多区域都具有巨大潜力。在这项研究中,我们提出了一个浅显的策略来调解弹性结构的变形,通过化学品,称为化学弹性毛细管。实验表明,添加的表面活性剂可以显着改变体系的界面能,然后调节粘附结构的构型。可以使用大而无限的梁变形理论来预测每块板的湿润长度和挠度,这些理论值与实验结果非常吻合。而且,所提出的方法可以成功地扩展为展开两张粘附的薄片和一张球拍状的薄片。本方案可用于精确地调节弹性毛细管作用,并为工程设计一些对化学敏感的设备和受湿度激励的执行器提供了启发。
更新日期:2017-11-15
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