| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Characterization of Al2O3 Ceramic Membrane with Hydrophobic Surface |
| LI Wei1, WANG Hongli1, LIU Xueyan1, FAN Zhiyu1, WU Yiyi1, NIE Dengpan1,*, TAO Wenliang1,2
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1 School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, China
2 Guizhou Association for Science and Technology, Guiyang 550003, China |
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Abstract Al2O3 ceramic membrane was prepared on SiC matrix by sol-gel method with ammonia and anhydrous aluminum chloride as raw materials. The prepared Al2O3 membrane was olephophoric modified by vacuum impregnation with Capstone FS-50 as a fluorocarbon surfactant. The results show that the pore size distribution of the prepared membrane is uniform, there is no crack and pinhole defect on the surface, and the flux and pore structure of the membrane are almost unchanged before and after Capstone FS-50 modification. Capstone FS-50 can be uniformly attached to the surface of Al2O3 membrane, so that it shows good oil hydrophobicity (the maximum surface contact angle is 130°). When the temperature is lower than 200 ℃, the modified ceramic membrane still has good oil hydrophobicity and good wear resistance.
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Published: 10 July 2024
Online: 2024-08-01
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| Fund:Innovation Group Major Scientific Research Project of Education Department of Guizhou Province (QJHKY[2018]016), Guizhou Province Science and Technology Planning Project (QJHZC[2020]4Y014), Guizhou Province Science and Technology Planning Project(QJHZC[2021]YB484). |
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2024, Vol. 38 
