| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Superior Robust, Transparent and Stretchable Self-healing Polyurethane for Flexible Devices |
| 초록 |
Polyurethanes as self-healing materials have attracted great interests due to their thermo-processability, high mechanical properties, high flexibility, and scratch resistance. In particular, polycarbonate-based polyurethane shows transparency, weatherability and excellent mechanical properties. Disulfide bond is a reversible covalent bond based on the thiol-disulfide dynamic exchange reaction. The introduction of the disulfide bonds enables the polyurethane thermal reversibility. Herein, we report a novel self-healing polyurethane with robust and transparent, which shows excellent self-healing ability with 98 % healing efficiency and excellent shape memory ability with recovery efficiency of ˃92 %. The change of the electrical resistance as a function of flexural strain suggested the potential application of the prepared film as a self-healing flexible substrate for flexible electronics. |
| 저자 |
하유미1, 김영오2, 안석훈1, 이승기1, 이재석1, 박민2, 정재우1, 정용채3
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| 소속 |
1한국과학기술(연), 2광주과학기술원, 3숭실대 |
| 키워드 |
self-healing; shape memory; polyurethane
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| E-Mail |
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