(Advanced Materials) Arbitrarily 3D Configurable Hygroscopic Robots with a Covalent-Noncovalent Interpenetrating Network and Self-Healing Ability
作者：Jie Cao, Changlin Zhou, Gehong Su, Xinxing Zhang,* Tao Zhou,* Zehang Zhou, and Yibo Yang
關鍵字：1
論文來源：期刊
發表時間：2019年
Soft materials that can reversibly transform shape in response to moisture have applications in diverse areas such as soft robotics and biomedicine. However, the design of a structurally transformable or mechanically selfhealing version of such a humidity-responsive material, which can arbitrarily change shape and reconfigure its 3D structures remains challenging. Here, by drawing inspiration from a covalent–noncovalent network, an elaborately designed biopolyester is developed that features a simple hygroscopic actuation mechanism, straightforward manufacturability at low ambient temperature (≤35 °C), fast and stable response, robust mechanical properties, and excellent self-healing ability. Diverse functions derived from various 3D shapes that can grasp, swing, close–open, lift, or transport an object are further demonstrated. This strategy of easy-to-process 3D structured selfhealing actuators is expected to combine with other actuation mechanisms to extend new possibilities in diverse practical applications.