| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-도료·코팅 |
| 제목 |
Effect of NCO/OH equivalent ratio on the properties of polyurethane dispersion |
| 초록 |
Water-based polyurethane dispersion (PUD) is being researched to reduce the amount of volatile organic compound emissions and environmental issues, and to improve the working environment. The physical properties of polyurethane were changed according to the ratio of the hard segments and the soft segments, and the molecular weight. The molecular weight and mechanical properties of polyurethane prepared by adjusting the NCO/OH equivalent ratio were compared with each other. The structure of synthesized polyurethane was confirmed by FT-IR analysis. Reactivity of polyol and isophorone diisocyanate with chain extender of dimethylol propionic acid were confirmed by dibutylamine inverse titration. The molecular weights of polyurethane was measured using GPC. The Mechanical properties of polyurethane was obtained using universal testing machine. |
| 저자 |
김진명, 권용록, 김은진, 김정수, 김동현
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| 소속 |
한국생산기술(연) |
| 키워드 |
polyurethane dispersion; NCO/OH equivalent ratio; hard segments; mechanical properties
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| E-Mail |
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