| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.153 |
| 발표분야 | 고분자 합성 |
| 제목 | Microcapsules containing electrophoretic nanoparticles for E-ink |
| 초록 | Microcapsules are efficient container, which of shell (wall) protect, release and/or cover inner materials called core materials. This technology, called microencapsulation, has been widely used in cosmetics, pesticide, pharmaceutical and medical application, foods, and carbonless copying paper, etc.1 Microcapsule-based electronic ink display technique which uses the microencapsulation of electrophoretic dispersion is being developed for direct-view portable displays2. In this study, microcapsules containing titanium dioxide (TiO2) and halocarbon oil were synthesized via an in-situ polymerization3 using melamine, urea and formaldehyde (MU/F) as a wall material. TiO2 (R-104) nanoparticles with the characteristics of high refractivity and excellent whiteness were used as electrophoretic particles. In addition in order to improve their mobility, the charge control agent (OLOA 1200) was also added in the suspension of TiO2 nanoparticles in dielectric medium. Morphology and thermal properties of the microcapsules were characterized by scanning electron microscope (SEM) and thermogravimetric analysis (TGA). And electric responses of the TiO2 nanoparticles in the microcapsules were also confirmed by optical microscope (OM). Reference 1. F. Pavanetto, B. Conti, I. Genta, p. Giunchedi, Int. J. Pharm. 84, 151 (1992). 2. B. Chomiskey, J. D. Albert, H. Yoshizawa. J. Jacobson, Nature. 394, 253 (1998). 3. C. A. Kim, M. K. Kim, M. J. Joung, S. D. Ahn, S. Y. Kang, E. Y. Lee, K. S. Suh, J. Ind. Eng. Chem. 9, 674 (2003). |
| 저자 | 이자영, 최형진 |
| 소속 | 인하대 |
| 키워드 | Electronic ink; Microcapsules; |
