| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Effect of post annealing conditions on the self-healing properties of polymeric films |
| 초록 |
Series of self-healable polymeric films based on polyurethanes (PUs) are prepared and the effect of post annealing conditions on their self-healing properties are investigated in this study. PUs are synthesized by reacting oligomeric polyols with crosslinkers and show the effective self-healing behavior, which is mainly attributed to multiple hydrogen bonding interactions between PU chains. The PU chains in films are initially oriented along one direction due to the nature of bar coating process, but the PU chains are then randomly distributed in all three dimensions upon post annealing above the glass transition temperature of PU. Interestingly, the films without post annealing show better self-healing properties compared with the post annealed films, which opens a versatile route to develop advanced film coating process for enhanced self-healability. |
| 저자 |
홍평화1, 김진실1, 문경민1, 이서윤2, 강정순2, 최기원2, 고민재2, 이성구1, 홍성우1
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| 소속 |
1한국생산기술(연), 2한양대 |
| 키워드 |
Self-healing; Post annealing; Polyurethanes; Hydrogen bonding; Polymer coating
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| E-Mail |
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