| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
A Highly Self-healable Elastomer Based on Urea Oligomer With Excellent Mechanical Properties and Outstanding Long-term Storage Stability |
| 초록 |
We demonstrate a highly self-healable elastomer based on urea oligomer (shEUo) in this study. Acrylate-based polyol, urea oligomer with isocyanate groups at both ends, and crosslinker containing multiple isocyanate groups are blended and the resulting blended precursor is reacted to generate shEUO. As a reference, conventional urea-containing elastomer (cEU) is prepared through the traditional one-pot synthesis where urea groups are randomly distributed in cEU. Interestingly, the blended precursor of shEUo shows outstanding long-term storage stability at room temperature compared to that of cEU. In addition, shEUo exhibits better self-healing performances and mechanical properties than cEU or conventional elastomer without urea groups. This demonstrates that conventional elastomer can achieve both superior self-healability and mechanical properties by incorporating urea oligomer where multiple urea groups are serially connected. |
| 저자 |
최기원1, 김진실2, 이서윤1, 강정순1, 김기승2, 박희정3, 홍성우2, 고민재1
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| 소속 |
1한양대, 2한국생산기술(연), 3단국대 |
| 키워드 |
self-healing; polyurethane-urea; urea oligomer; storage stability
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| E-Mail |
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