Instant tough bonding of hydrogels for soft machines and electronics.
Instant tough bonding of hydrogels for soft machines and electronics.
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DOI：
10.1126/sciadv.1700053
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发表时间：
2017-06
期刊：
影响因子：
13.6
通讯作者：
Kaltenbrunner M
中科院分区：
文献类型：
--
作者：
Wirthl D;Pichler R;Drack M;Kettlguber G;Moser R;Gerstmayr R;Hartmann F;Bradt E;Kaltseis R;Siket CM;Schausberger SE;Hild S;Bauer S;Kaltenbrunner M
本文报道了一种将富水凝胶粘合到各种材料上的方法，用于电子皮肤、储能和软光学。引入水凝胶和拮抗材料之间的即时坚韧结合方法-从软到硬-使我们能够展示具有高度复杂性的弹性而坚韧的仿生设备和机器。坚韧的水凝胶在几秒钟内就能牢固地附着在塑料、弹性体、皮革、骨头和金属上，达到前所未有的界面韧性，超过2000 J/m2。切断离子水凝胶导体的愈合成为可能，并立即恢复功能。柔软、透明的多层弹性体和离子水凝胶的杂交体承受双轴应变，面积增加2000%以上，有利于软换能器、发电机和自适应透镜。我们展示了软电子设备，从可拉伸电池，自供电兼容电路，以及用于触发药物递送的自主电子皮肤。我们的方法适用于快速成型，并在脆弱的环境无法延长固化和交联。
A strategy for bonding water-rich hydrogels to diverse materials for electronic skins, energy storage, and soft optics is reported. Introducing methods for instant tough bonding between hydrogels and antagonistic materials—from soft to hard—allows us to demonstrate elastic yet tough biomimetic devices and machines with a high level of complexity. Tough hydrogels strongly attach, within seconds, to plastics, elastomers, leather, bone, and metals, reaching unprecedented interfacial toughness exceeding 2000 J/m2. Healing of severed ionic hydrogel conductors becomes feasible and restores function instantly. Soft, transparent multilayered hybrids of elastomers and ionic hydrogels endure biaxial strain with more than 2000% increase in area, facilitating soft transducers, generators, and adaptive lenses. We demonstrate soft electronic devices, from stretchable batteries, self-powered compliant circuits, and autonomous electronic skin for triggered drug delivery. Our approach is applicable in rapid prototyping and in delicate environments inaccessible for extended curing and cross-linking.