| 도포-열분해법을 이용한 비대칭 세라믹 분리막 제조 |
| 류현욱, 김병훈 |
| 전남대학교 신소재공학부 |
| Preparation of Asymmetric Ceramic Membrane by Coating-Pyrolysis Process |
| Hyun-Wook Ryu, Byung-Hoon Kim |
| Department of Ceramic Engineering, Chonnam National University |
|
|
|
|
|
| ABSTRACT |
|
The fabrication of a three-layered asymmetric ceramic membrane was performed by slip casting of the porous alumina support and dip coating of the alumina intermediate layer using high purity ${alpha}-Al_2O_3$ powders that have different particle size, followed by screen printing-pyrolysis of the $Tio_2$ layer as an ultrafilteration membrane using Ti-naphthenate solution. The bending strength, porosity and mean pore size of the alumina support were 231 kg/$cm^2$s, 30.26% and 0.19 ${mu}m$, respectively. The thickness of the intermediate layer was 30 ${mu}m$ and the mean pore size of that was 0.063 ${mu}m$. Also, the top layer was 0.5 ${mu}m$ thick and micropores with about 20 nm size were formed uniformly. |
| Key words:
$TiO_2$ membrane, Porous alumina, Ti-naphthenate, Pyrolysis process |
|
|
|
PDF Links
Full text via DOI
Download Citation 
