中文摘要：

陶器的毛状的膜由于它的相对高的包装密度和有利机械力量收到了许多注意。然而，由一个 dip-coating 方法在它的薄支持上准备毛状的膜是困难的。在这研究，氧化铝 microfiltration 膜在氧化铝的内部表面上被准备毛状的支持(外部直径 4 公里，内部直径 2.5 公里) 由一个 dip-coating 方法。扫描电子显微镜学(SEM ) 观察，煤气的水泡压力(GBP ) 方法和膜浸透测试被执行评估膜性能。二个学生在没有裂缝的膜，毛状的过滤和电影涂层的准备完成，在薄支持之上被学习。同样准备的没有裂缝的膜介绍狭窄的毛孔尺寸分布，大约 0.6 m 的一种吝啬的毛孔尺寸和 86000 L 潲散獳椠 ? 潮楮敤污洠汵楴潣灭湯湥 ? 楤瑳汩慬楴湯挠汯浵 ? 愠洠瑥潨 ? 慷 ? 的高纯的水流动敤敶潬数 ? 楷桴攠畱汩扩楲浵猠慴敧洠摯汥??? 愠摮渠湯攭畱汩扩楲浵洠摯汥??? 椠据牯潰慲整 ? 楷桴 ? 硡敷汬匭整慦? 楤晦獵潩 ? 煥慵楴湯 ? 湩琠敨映慲敭潷歲漠 ? 獁数佮 ? 爨 ? 楳畭慬潴吗？

英文摘要：

Ceramic capillary membrane has received much attention due to its relatively high pack density and favorable mechanical strength.However,it is difficult to prepare capillary membrane on its thin support by a dip-coating method.In this study,alumina microfiltration membranes were prepared on the inner surface of alumina capillary support（outer diameter 4 mm,inner diameter 2.5 mm）by a dip-coating method.Scanning electron microscopy（SEM）observation,gas bubble pressure（GBP）method and membrane permeation test were carried out to evaluate membrane performance.Two major effects in preparation of crack-free membrane,capillary filtration and film-coating,upon the thin support were studied.The as-prepared crack-free membrane presents a narrow pore size distribution,a mean pore size of about 0.6μm and a high pure water flux of 86000 L·m ^-2 ·h ^-1 ·MPa.It is proved that the membrane thickness should be sufficiently large to overcome the defects of support surface,but it is only one of the prerequisites for the formation of crack-free membrane.Furthermore,it is demonstrated that the capillary filtration effect is greatly restricted for thin capillary support with the dip-coating method and the film-coating effect plays a crucial role in the formation of crack-free membrane.