| 학회 |
한국화학공학회 |
| 학술대회 |
2017년 봄 (04/26 ~ 04/28, ICC 제주) |
| 권호 |
23권 1호, p.81 |
| 발표분야 |
고분자 |
| 제목 |
Fabrication of PDMS-based Urea-formaldehyde core/shell self-healing microcapsules embedded in Polyurethane matrix with enhanced mechanical and thermal stability |
| 초록 |
Healing agents-cotained microcapsules which are mechanically and thermally stable were prepared and incorporated into a polyurethane (PU) matrix to develop self-healing skin layers of instrument panels in automobiles. In this study, two different poly(urea-formaldehyde) (PUF) microcapsules containing either a polydimethylsiloxane (PDMS)/Pt catalyst (Pt) blend or crosslinker were synthesized using in situ emulsion polymerization. Moreover, by decreasing the capsule size and depositing an additional urea-formaldehyde (UF) layer onto pre-formed PUF microcapsules, the synthesized microcapsules which were mechanically and thermally weak were greatly enhanced. After all, The two different optimized microcapsules were successfully embedded in a PU matrix and could be broken upon matrix scratching, thereby releasing the healing agent to the target areas via capillary effects. Consequently, it was confirmed that the scratched portions were repaired through chemical and/or physical interactions within the healing system. |
| 저자 |
민지홍, 김민수, 유병용, 김경주, 이재상, 공혜연, 윤병주, 노소영, 고원건
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| 소속 |
연세대 |
| 키워드 |
고분자합성 |
| E-Mail |
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| 원문파일 |
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