Self-healing strain sensors based on nanostructured supramolecular conductive elastomers
Self-healing strain sensors based on nanostructured supramolecular conductive elastomers
复制标题
基于纳米结构超分子导电弹性体的自修复应变传感器
DOI：
10.1039/c7ta02416a
复制
发表时间：
2017-05-28
影响因子：
11.9
通讯作者：
Zhang, Xinxing
中科院分区：
文献类型：
--
作者：
Liu, Xuehui;Lu, Canhui;Zhang, Xinxing
自愈能力是动物皮肤的重要特性，这对于下一代可穿戴设备来说是非常理想的。然而，制备结合自修复能力、应变和摩擦敏感性以及良好机械性能的材料仍然是一个巨大的挑战。在此，一个新的家庭的自愈合应变传感器从市售的弹性体已开发的分层纳米结构连接通过热可逆的离子氢键的建设。所得材料显示出高的机械强度（类似于先前报道的自修复导电材料的4-8倍）、吸引人的应变敏感性和优异的自修复特性。即使在弯曲超过10000次后，愈合的样品仍保持类似的人体运动监测灵敏度。这项工作为自修复材料和未来可穿戴传感设备的设计和可扩展制造开辟了新的机会。
Self-healing ability is an important feature of animal skin, which is highly desirable for next-generation wearable devices. However, the preparation of a material combining self-healing ability, and strain-and tactile-sensitivity, as well as good mechanical properties remains a great challenge. Herein, a new family of self-healing strain sensors from commercially available elastomers has been developed by the construction of a hierarchical nanostructure connected through thermally reversible ionic hydrogen bonds. The resulting materials show high mechanical strength (similar to 4-8 times that of previously reported self-healing conductive materials), appealing strain sensitivity and excellent self-healing properties. The healed samples maintain similar sensitivity for human motion monitoring even after bending over 10 000 times. This work opens up new opportunities for the design and scalable fabrication of self-healing materials and future wearable sensing devices.