Abstract: SPES/PSF ultrafiltration membrane was successfully prepared by the blend method, with sulfonated polyethersulfone (SPES) and polysulfone (PSF) as membrane material. The preparation technology of SPES/PSF blend ultrafiltration membrane was studied by means of uniform experiment design. The model equation of fluxes was obtained by means of regress analysis. On the basis of the model equation, the effects of blend ratio, polymer concentration，additive concentration etc. upon the fluxes were investigated by single factor simulation analysis. It was found the fluxes of the optimum SPES /PSF membrane was 93.1L/(m2·h) and 93.37% rejection to PVA.

摘要： 以磺化聚醚砜(SPES)和聚砜（PSF）为膜材料，用共混法制备了SPES/PSF超滤膜。采用均匀实验设计法，研究了SPES/PSF共混超滤膜的制膜工艺，并通过回归分析得到了水通量的模型方程。根据模型方程，作者进行了单因素影响模拟计算，考察共混比、聚合物总浓度、添加剂浓度等对水通量的影响。结果表明：根据最优配方所制备的SPES/PSF膜的水通量为93.1 L/(m²·h)，对聚乙烯醇的截留率达93.37％。