Tough and Water-Insensitive Self-Healing Elastomer for Robust Electronic Skin

Title
Tough and Water-Insensitive Self-Healing Elastomer for Robust Electronic Skin
Authors
손동희강지형왕깅지리우유신로페즈 제프리김영인오진영카스마타 토루문재완이영준진리화톡제프리바오 제난
Keywords
self-healing; electronic skin; intrinsically stretchable; tough
Issue Date
2018-03
Publisher
Advanced materials
Citation
VOL 30, NO 13-1706846-8
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/67411
ISSN
0935-9648
Appears in Collections:
KIST Publication > Article
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