| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis of highly self-healable heterocyclic polyurethane |
| 초록 |
A functional polyurethane based on heterocyclic polyol (hPU) is synthesized and its self-healing properties are characterized in this study. The self-healable heterocyclic polyurethane is prepared by blending a polyol synthesized from monomer with heterocyclic group and a crosslinker containing multiple isocyanate groups followed by reacting the blended solution at elevated temperature. From the results of single scratch test, hPU exhibits better self-healing capability and faster self-healing kinetics than conventional polyurethane with no heterocyclic compound (cPU). This results from the strong intermolecular hydrogen bonding between urethane groups and heterocyclic groups. FT-IR spectroscopy is applied to confirm the effective self-healing mechanism of hPU and a universal testing machine is used to compare the mechanical properties of hPU and cPU before and after the self-healing process, respectively. |
| 저자 |
홍평화1, 김진실1, 문경민1, 김기승1, 강정순2, 최기원2, 이성구1, 고민재2, 홍성우1
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| 소속 |
1한국생산기술(연), 2한양대 |
| 키워드 |
Self-healing; Polyurethane; Heterocyclic poylol; Self-healable coating
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| E-Mail |
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