聚乙烯醇辐照交联共聚物渗透气化分离膜

The Pervaporation Separation Membrane of Radiation Crosslinking PVA Copolymer

摘要: 研究了聚乙烯醇(PVA)与丙烯酰胺丙烯酸钠共聚物(PcoAANa)的辐照交联共聚物膜用于水-乙醇混合物的渗透气化分离,随着PcoAANa在共聚物中的含量由0%上升到35%,透量及分离系数同时增大,膜材料对混合物中水及乙醇的选择性溶解,对渗透气化过程起重大影响。求出了水、乙醇及其混合物的表现透过活化能.水,乙醇和混合物的平均扩散系数在水含量为40%时出现极大值。

Abstract: The pervaporation separation of H_2O/EtOH mixtures through polyvinyl alcohol (PVA) and copoly(acrylamidesodium acrylate) (PCOAANA) radiation crosslinldng membrane was studied. Both flux and separation factor. Increase with increading of PCOAANA from 0%