| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Synthesis and characterization of melamine-urea-formaldehyde microcapsules containing ENB-based self-healing agents |
| 초록 |
Microcapsules for self-healing applications were produced with a melamine-urea-formaldehyde (MUF) polymer shell containing two different healing agent candidates, ENB (5-ethylidene-2-norbornene) and ENB with 10 wt.% of a norbornene based crosslinking agent (CL), by in-situ polymerization in an oil-in-water emulsion. Relatively neat outer surfaces with minor roughness were observed on the MUF microcapsules under optical and scanning electron microscopy. Shell thickness of the capsules ranged from 700 to 900 nm. Particle size analysis of the microcapsules showed narrow size distributions with a similar mean diameter around 120 μm for both microcapsules at an agitation rate of 500 rpm. The microcapsules were found to be thermally stable up to 300oC and exhibited a 10 to 15 % weight loss when isothermally held at 150oC for 2 hr from thermogravimetric analysis. Overall, these MUF microcapsules exhibited superior properties. |
| 저자 |
유 성1, Xia Sheng2, 이종근3, Michael R. Kessler1
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| 소속 |
1국립금오공과대, 2Dept. of Materials Science and Engineering, 3Iowa State Univ. |
| 키워드 |
Self-healing; Microencapsulation; Melamine-urea-formaldehyde; ENB; Crosslinking agent
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| E-Mail |
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