| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
A novel heterocyclic supramolecular polyurethane with excellent self-healing properties and mechanical properties |
| 초록 |
A new heterocyclic supramolecular polyurethane (hsPU) is synthesized and its self-healing properties are characterized in this study. To synthesize hsPU, a polyol and a heterocyclic compounds with hydroxyl groups are blended and the blend is reacted with crosslinker containing multiple isocyanate groups. The results from experiments performed using nano scratch tester reveal that hsPU shows better self-healing properties than conventional polyurethanes with no heterocyclic groups. This is attributed to the strong supramolecular networks resulting from the intermolecular interactions between urethane groups and heterocyclic groups. Fourier-transform infrared spectroscopy is applied to prove the effective self-healing mechanism of hsPU, and a universal testing machine is also used to compare the mechanical properties of hsPU and conventional polyurethanes after the self-healing process. |
| 저자 |
김진실1, 홍평화1, 문경민1, 이서윤2, 강정순2, 최기원2, 이성구1, 고민재2, 홍성우1
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| 소속 |
1한국생산기술(연), 2한양대 |
| 키워드 |
self-helaling; polyurethane; healable
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| E-Mail |
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