氧化铝（氧化钛）/聚偏氟乙烯复合中空纤维膜的制备表征及其应用研究

【作者】 王慧雅；

【导师】 王连军； 李健生；

【作者基本信息】 南京理工大学 ， 环境工程， 2004， 硕士

【摘要】 本论文用干-湿纺丝法制备了Al₂O₃／PVDF及TiO₂／PVDF复合中空纤维膜。通过扫描电镜可知，无机粒子只是嵌合在PVDF中。对膜的性能量进行了表征，纯PVDF膜、Al₂O₃／PVDF及TiO₂／PVDF复合膜的最大孔径分别为0.75um、0.35um和0.39um，它们的孔隙率分别为22.13％、29.53％和90.63％，但复合膜的纯水通量却由纯PVDF膜的22.13L／m².h提高到了29.53L／m².h、90.63L／m².h。Al₂O₃／PVDF和TiO₂／PVDF复合膜对PEG-20000截留率分别为35.12％、25.12％，对牛血清白蛋白的截留率分别为93.89％、73.33％，而纯PVDF膜对它们的截留率只有18.35％和3.36％。Al₂O₃／PVDF和TiO₂／PVDF复合膜对含油废水的去除率分别高达92.42％和91％。更多还原

【Abstract】 Adding the nano-particle, the A12O3/PVDF, TiO2/PVDF composite hollow fiber membranes were investigated in this dissertation.By the SEM,it is showed that the PVDF has been beseted with nano-particle .Some of their performance were characterized.The max pore size of the pure PVDF membrane, A12O3/PVDF and TiO2/PVDF composite membrane is 0.75um, 0.35um, 0.39um respectively, their porosity is 64.46%, 48.03%, 49.69% respectively.The pure water flux of A12O3/PVDF , TiO2/PVDF composite membranes is 29.53L/m’.h, 90.63L/m3.h, the pure PVDF membrane’s is 22.13L/ml.h. The rejection rate of the pure PVDF membrane, A12O3/PVDF and TiO2/PVDF composite membrane to PEG-20000 is 18.35%, 35.12%, 25.12%,their rejection rate to the bovine serum albumin reach to 3.36%, 93.89%, 73.33%. The effect of the A12O3/PVDF, TiO2/PVDF composite membrane to the oil-bearing wastewater is 92.42%, 91%.更多还原