| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 |
27권 1호, p.112 |
| 발표분야 |
고분자 |
| 제목 |
A biologically muscle-inspired polyurethane with super-tough, thermal reparable and self-healing capabilities for stretchable electronics |
| 초록 |
Polymeric elastomers play an increasingly important role in the development of stretchable electronics. A highly demanded elastic matrix is preferred to own not only excellent mechanical properties, but also additional features like high toughness and fast self-healing. Here, we synthesized a polyurethane (DA-PU) with donor and acceptor groups alternately distributed along the main chain to achieve both intra-chain and inter-chain D-A self-assembly, which endow the polyurethane with toughness, self-healing and, more interestingly, thermal repair, like human muscle. In detail, DA-PU exhibited an remarkable mechanical performance, anti-fatigue and anti-stress relaxation properties as manifested by cyclic tensile and stress relaxation tests, respectively. Even in case of large strain deformation or long-time stretch, it could almost completely restore to original length by thermal repair at 60℃ in 60s. The self-healing speed of DA-PU could be 1.0 ~ 6.15 μm/min from 60℃ to 80℃. At last, a stretchable and self-healable capacitive sensor was constructed and evaluated to prove that DA-PU matrix could ensure the stability of electronics even after critical deformation and cut off. |
| 저자 |
WUBIN YING1, Ruoyu Zhang2, Jin Zhu3, 이경진3, 김도환4
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| 소속 |
1Ningbo Institute of Materials Technology and Engineering, 2Chinese Academy of Science / 한양대, 3Chinese Academy of Sciences, 4충남대 |
| 키워드 |
첨단고분자 |
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
