Tough and Water-Insensitive Self-Healing Elastomer for Robust Electronic Skin
- Tough and Water-Insensitive Self-Healing Elastomer for Robust Electronic Skin
- 손동희; 강지형; 왕깅지; 리우유신; 로페즈 제프리; 김영인; 오진영; 카스마타 토루; 문재완; 이영준; 진리화; 톡제프리; 바오 제난
- self-healing; electronic skin; intrinsically stretchable; tough
- Issue Date
- Advanced materials
- VOL 30, NO 13-1706846-8
- An electronic (e-) skin is expected to experience significant wear and tear over time. Therefore, self-healing stretchable materials that are simultaneously soft and with high fracture energy, that is high tolerance of damage or small cracks without propagating, are essential requirements for the realization of robust e-skin. However, previously reported elastomers and especially self-healing polymers are mostly viscoelastic and lack high mechanical toughness. Here, a new class of polymeric material crosslinked through rationally designed multistrength hydrogen bonding interactions is reported. The resultant supramolecular network in polymer film realizes exceptional mechanical properties such as notch-insensitive high stretchability (120 %),
high toughness of 12 000 J m− 2, and autonomous self-healing even in artificial sweat. The tough self-healing materials enable the wafer-scale fabrication of robust and stretchable self-healing e-skin devices, which will provide new directions for future soft robotics and skin prosthetics.
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