For uncharged solutes, the separation is achieved by sieving effect, and steric-hindrance pore(SHP)model is appropriate.

• 对于中性溶质体系,膜对溶质的截留主要依据筛分作用,因此可应用立体阻碍-细孔模型(SHP模型)来表征纳滤膜的分离性能[5-8]。