研究了纳米二氧化硅(SiO2)颗粒的添加对聚醚砜纳米二氧化硅气体分离复合膜气体渗透性能的影响.采用SEM、机械性能和气体分离性能等评价方法分别表征膜的微观结构、力学性能及分离性能.结果表明:随着SiO2添加量的增加,杨氏模量增大,H2、N2、O2、CH4和CO2气体的渗透通量增大,但O2/N2,CO2/CH4和H2/N2的分离因子有所降低；中空纤维气体分离复合膜在放置一段时间后,性能趋于稳定；制备好的膜以乙醇和正己烷为交换剂,在烘箱中烘干作为后处理方式能够使膜具有较好的分离性能.
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