文章首先探讨了纳米无机小分子物质，ZnO、Al2O3、TiO2、SiO2，对PVC/PES共混溶液剪切粘度的影响，在此基础上研究了这几种纳米无机小分子物质PVC/PES共混膜断面和表面微观结构、水通量、截留率、亲水性、孔隙率、机械性能等的影响。结果表明四种纳米无机颗粒均使PVC/PES共混膜的表面孔径和孔隙率减小，亲水性和截留率增大。添加无机纳米无机小分子物质的膜，其孔隙率越大，水通量也越大。未添加无机小分子物质的PVC/CA共混膜，孔隙率最大，但水通量小于添加SiO2和ZnO后的膜，说明膜的水通量不仅与孔隙率有关，与膜的亲水性也有密切的关系。另外，纳米无机小分子可以稍微改善膜的抗拉伸性能。

 This article studied the impact of inorganic nanoparticles, ZnO/Al2O3/ TiO2/SiO2, on share viscosity of polyvinyl chloride (PVC)/polyether sulfone (PES) blend system. Then tested the characters of the nanoparticle modified membranes, including shear viscosity micro-structure (SEM), water flux, rejection rate, hydrophilic and mechanical property. The result showed, all nanoparticles made the surface pore diameter small and compact. The larger shear viscosity of casting solution and membrane pore rate, the greater the water flux. Addition, nanoparticles improved the BSA rejection and mechanical property in different degrees.

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