采用干-湿法纺丝技术制备了α-Al2O3中空纤维支撑体,系统研究了Al2O3/PESf(聚醚砜)原料比、焙烧温度、保温时间以及原料粒径等因素对支撑体结构性能的影响.优化的支撑体渗透性为4.09×10-5 mol/(m2·s·Pa),弯曲强度为142.7 MPa,最大孔径与平均孔径分别为0.66 μm和0.56μm在该支撑体上合成了NaA分子筛膜,其水/乙醇分离因子>5 000,通量达7.37 kg/(m2·h).
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