| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 |
12권 1호, p.1179 |
| 발표분야 |
International Symposium on Display Materials and Processes |
| 제목 |
Flow Instabilities and Coating Windows of Coating Processes |
| 초록 |
The final goal of coating processes is to produce uniform coating liquid layer with the specified thickness at high speeds. However, manufacturing uniform coating products is not a trivial task at high-speed operations because various flow instabilities or defects such as leaking, bubbles, ribbing, and rivulets are frequently observed in coating processes. It is no wonder, therefore, that many efforts to elucidate the various aspects of dynamics and coating windows in coating processes have been made both in academia and industry. Recent research results related to flow dynamics and defects/instabilities in various coating flows/processes have been briefly reviewed in this talk. We will explain some theoretical results in curtain and slot coatings by the 1D simplified viscocapillary models, Flow-3D/Fluent, and 2D FEM with auto-remeshing technique. Also, as experimental results using coating equipment, flow visualization near coating beads and coating windows for Newtonian and polymer solutions in forward and reverses roll coatings and slot coating will be presented. |
| 저자 |
김수연1, 윤석일1, 신동명1, 이주성2, 정현욱1, 현재천1
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| 소속 |
1고려대, 2UC Berkeley |
| 키워드 |
flow instability; coating; coating window; coating rheology
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
