| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 |
15권 2호, p.2454 |
| 발표분야 |
Flat panel display 제조에서의 이동현상 고찰 심포지엄 |
| 제목 |
Film formation of silica/PVA suspension: the effect of mixing control |
| 초록 |
Film formation of particle/binder suspension can be tailored by process control without chemical manipulation. In this study, we investigated the film formation of the silica/ polyvinyl alcohol (PVA) suspension in terms of mixing time (tmix) and mixing intensity. As tmix increased, the amount of adsorbed PVA on silica surface in suspension and film stress increased with a similar trend. Dried film displaying open microstructure initially became close-packed with increasing tmix. Effect of mixing time on film formation is explained by the reinforced steric repulsion due to increasing adsorption which results in suppressing the flocculation during drying. We found that mixing intensity did not significantly affect the film formation, presumably because dispersion process was controlled by diffusion rather than convection. |
| 저자 |
김선형, 성준희, 안경현, 이승종
|
| 소속 |
서울대 |
| 키워드 |
Mixing; adsorption; dispersion; drying; microstructure
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
