iMechanica - transparent transducers
https://imechanica.org/taxonomy/term/9759
enHighly Stretchable and Transparent Ionogels as Nonvolatile Conductors for Dielectric Elastomer Transducers
https://imechanica.org/node/16530
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/7424">dielectric elastomers</a></div><div class="field-item odd"><a href="/taxonomy/term/9758">stretchable conductors</a></div><div class="field-item even"><a href="/taxonomy/term/9759">transparent transducers</a></div><div class="field-item odd"><a href="/taxonomy/term/9760">ionic liquids</a></div><div class="field-item even"><a href="/taxonomy/term/9761">ionogels</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
<a name="OLE_LINK135" title="OLE_LINK135" id="OLE_LINK135"></a><span>Large deformation of soft materials is harnessed to provide functions in the nascent field of soft machines. We describe a new class of systems enabled by highly stretchable, transparent, stable ionogels. We synthesize an ionogel by polymerizing acrylic acid in ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate ([C2mim][EtSO4]). The ionogel exhibits desired attributes of adequate conductivity (0.22 S/m), low elastic modulus (~3 kPa), large rupturing stretch (~4.6), and negligible hysteresis and degradation after cyclic stretches of large amplitude. Using the ionogel and a dielectric elastomer, we fabricate electromechanical transducers that achieve a voltage-induced areal strain of 140%. The ionogel is somewhat hygroscopic, but the transducers remain stable after a million cycles of excitation in a dry oven and in air. The transparency of the ionogels enable the transducers with conductors placed in the path of light, and the nonvolatility of the ionogels enable the transduce</span><span>r</span><span>s to be used in open air.</span>
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<span>Baohong Chen, Jing Jing Lu, Can Hui Yang, Jian Hai Yang, Jinxiong Zhou, Yong Mei Chen, Zhigang Suo. </span><a href="https://www.dropbox.com/s/4envqxe7gyw2bn6/321.pdf" target="_blank">Highly stretchable and transparent ionogels as nonvolatile conductors for dielectric elastomer transducers</a><span>. ACS Applied Materials & Interfaces (2014). DOI: 10.1021/am501130t</span>
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</div></div></div>Fri, 02 May 2014 04:09:03 +0000Baohong Chen16530 at https://imechanica.orghttps://imechanica.org/node/16530#commentshttps://imechanica.org/crss/node/16530Error | iMechanica