研究人员使用胶黏剂实现水凝胶与塑料弹性体金属的强力粘结

第三届聚碳酸酯技术与市场研讨会

没空编译了,简单说两句:

研究人员用一种常见的胶黏剂实现了水凝胶与其它软或硬质材料的强力粘结,实现了水凝胶与水凝胶、水凝胶其它软或硬质材料的强力粘结,比如两块水凝胶之间的粘合,水凝胶与塑料、弹性体材料、金属等材料的强力粘合。

水凝胶粘合剂

下图中,将电子元件粘接在水凝胶材料上,打造一款电子皮肤或者穿戴设备,可以将监控数据实时传输至手机控制端。

水凝胶电子皮肤

下图是水凝胶与硬质塑料板的粘接非常牢固,分离时可以看到水凝胶材料本身被撕裂,而粘结界面依然牢固。。。。

水凝胶胶黏剂

(Credit: Soft Electronics Laboratory, Linz Institute of Technology)

总之通过该技术,可以实现水凝胶与塑料、弹性体、金属。。等等材料的强力粘结。

更详细权威的内容请读文献:Daniela Wirthl et al. Instant tough bonding of hydrogels for soft machines and electronics, Science Advances (2017). DOI: 10.1126/sciadv.1700053

Abstract
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.

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