The PVA/PAN composite membrane supported by the PAN-SS dry membrane with three-layer, 5nm of average pore size manifested superior pervaporation performance in separating alcohol aqueous solution.

• 在具有三层结构、平均孔径为5nm的聚丙烯腈原液干膜上复合了聚乙烯醇（PVA）的PVA/PAN复合膜，分离醇水溶液的渗透汽化（PV）性能优良。