| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 | 21권 2호, p.1973 |
| 발표분야 | 유동층 |
| 제목 | Optimal shim design for uniform coating distribution in slot coating process |
| 초록 | Slot coating process is one of the most commonly used methods in order to manufacture a variety of products in displays and secondary batteries. In this system, it is quite important to design internal slot die optimally for ensuring the uniform velocity profile at die exit. As the strategy for optimal die design, it is possible to change flow patterns through the chamber and the slit inside the die, considering rheological properties of coating liquids which are typically non-Newtonian. The research plan is first to examine in detail how shim geometries have a great influence for the flow dynamics inside the die for non-Newtonian liquids, without changing die structure. 3-dimensional flow characteristics inside the die were numerically analyzed via CFD computations using different shim designs. It was found that the fairly non-uniform velocity profile at the die exit under the basic shim condition could be obviously smoothed by the modification of shim geometry. Keywords: Slot die coating, Internal flow, Shim geometries |
| 저자 | 정현욱, 안원기, 김광림 |
| 소속 | 고려대 |
| 키워드 | slot coating; shim design |
| 원문파일 | 초록 보기 |
