摘要
采用固态粒子烧结法制备氧化铝管式陶瓷膜中的过渡层,以正交实验法系统研究过渡层配方的三种原料:三氧化二铝(Al2O3),聚乙烯醇(PVA),烧结助剂二氧化锆(ZrO2)各自质量分数以及涂膜次数对氧化铝陶瓷膜过渡层料液通量的影响。最终得出最佳工艺配方组合:ω(Al2O3)=23%,ω(ZrO2)=12%,ω(PVA)=4%,涂膜2次。并结合压汞法得出的孔径分布图和孔隙率推论:膜层孔径分布越窄,孔隙率越大,则膜通量越大。
Tubular alumina interlayer membranes have been successfully fabricated by solid particle sintering technique.The effects of alumina weight percentage,polyvinyl alcohol weight percentage,sintering additive zirconia weight percentage and the number of coating on membrane liquid flux were investigated.By orthogonal test,the opotimization conditions were confirmed as follows：alumina 23wt%,polyvinyl alcohol 4wt%,zirconia 12wt% and the number of coating 2.SEM images showed that the surface of the membrane was crack-free and the pore size distribution and porosity determined by the mercury intrusion method revealed that as the pore size distribution becomes narrow and the porosity higher,the membrane flux is greater.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2010年第5期1206-1210,共5页
Bulletin of the Chinese Ceramic Society
关键词
陶瓷膜
AL2O3
正交试验
孔径分布
孔隙率
ceramic membrane
alumina
orthogonal test
pore size distribution
porosity
