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Issue 44, 2017
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Chemical mediated elasto-capillarity of elastic sheets

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Abstract

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.

Graphical abstract: Chemical mediated elasto-capillarity of elastic sheets

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Publication details

The article was received on 05 Aug 2017, accepted on 10 Sep 2017 and first published on 11 Sep 2017


Article type: Paper
DOI: 10.1039/C7SM01575E
Citation: Soft Matter, 2017,13, 8048-8054
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    Chemical mediated elasto-capillarity of elastic sheets

    J. Liu, Y. Gong and G. Cao, Soft Matter, 2017, 13, 8048
    DOI: 10.1039/C7SM01575E

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