非对称性微孔复合陶瓷膜制备技术研究.pdf

2000年第58卷 化学学报 V01．58，2000 ACTA 第8期，1015～1021 CHIMICASINICA 非对称性微孔复合陶瓷膜制备技术研究 王和义。 傅依备 邢丕峰 (中国工程物理研究院核物理与化学研究所绵阳621900) 摘要采用压制一烧结法制备多孔氧化铝陶瓷片，并采用溶胶一凝胶法在多孔氧化铝陶瓷载体上依次沉积孔径逐 渐减小的氧化铝陶瓷膜、氧化锆陶瓷膜和氧化钛陶瓷膜，从而得到具有非对称性结构的多孔复合陶瓷膜．采用压制 瓷片的开口孔隙率大于40％，断裂强度大于50N．以此陶瓷片作载体，经溶胶一凝胶法多次涂敷不同的溶胶，可分别 体的过滤材料，也可以作为钯合金膜的支撑体． 关键词 复合膜，制备，溶胶一凝胶法，压制一烧结法 Oil of StudyPreparationTechniqueUnsynnnetricalMicroporous CeramicsMembranes Composite WANGHe—Yi+FUYi—BeiXING Pi—Feng (Institute and ofNuclearPhysicsChemistry，ChinaAcademyofEngineeringPhysics，Mianyang，621900) AbstractThe was to these developed ceramics，and press—sinteringprocess prepare他03micmporous ceramicscoated were membrane methodtoobtainthe with他03，Z如andTi02 bysol—gel ceramicsmembranesinthis the Was composite paper．In press—sinteringprocess，thepowderagglomerated， and in the劬(PvA)Wascontrolledat15％，25％and30％，Ⅱle was size，then agglomerated powderlOtan andsinteredat1250。C，and ceramicswith diameterof and pressed micmpomus pore 2tma，6tma10tma，open ratio than of50Ncouldbe the cevd／nicswith pore higher40％．crushingstrength achieved．Usingmicmpomus