Ultrastretchable, Adhesive, Fast Self-Healable, and Three-Dimensional Printable Photoluminescent Ionic Skin Based on Hybrid Network Ionogels

被引：74
作者：
Hao S. [1 ]
Li T. [1 ]
Yang X. [1 ]
Song H. [1 ]
机构：
[1] College of Chemistry and Environmental Science, Hebei University, Hebei Province, Baoding
来源：
ACS Applied Materials and Interfaces | 2022年 / 14卷 / 01期
基金：
中国国家自然科学基金;
关键词：
3D printing; adhesive; flexible sensor; human-machine interface; I-Skin; photoluminescent; self-healing; stretchable ionogels;
D O I：
10.1021/acsami.1c21325
中图分类号：
学科分类号：
摘要：
Developing multifunctional stretchable ionic skin (I-Skin) to mimic the sensations of the human skin is of great interest and shows promising potential in wearable sensors and human-machine interfaces (HMIs). However, common ionogels prepared with small-molecule cross-linkers and single networks can hardly satisfy the requirements of adjustable mechanical properties, strong adhesion, fast self-healability, and good stability in extreme environments. Herein, an ultrastretchable (>10,000%), ultrastrong adhesive (>6.8 MPa), ultrafast self-healable (10 s), high thermally stable (-60 to 250 °C), and three-dimensional (3D)-printable photoluminescent ionogel with shape memory properties has been designed. The ionogel consists of hyperbranched polymer covalent-cross-linked poly(zwitterionic ionic liquid)-co-poly(acrylic acid) and multiple dynamic bonding cross-linked networks. The excellent performance of the ionogel-based high-stretchable strain sensor and the triboelectric nanogenerator (TENG)-based self-powered touch sensor is further demonstrated over a wide temperature range (-40 to 150 °C). More importantly, ionogel-based I-Skin can work as an HMI for human gesture recognition and real-time wireless control of robots under extreme vacuum conditions and can also self-heal immediately along with function recovery after mechanical damage. © 2021 American Chemical Society.
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收藏
页码：2029 / 2037
页数：8
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