静电纺丝法制备聚丙烯酰胺/壳聚糖-聚乙烯醇双极膜  

Preparation of the Anionic Polyacrylamide / Chitosan-Polyvinyl Alcohol Bipolar Membrane Through Electrospinning Technique

作　　者：陈晓[1] 陈丽金[1] 陈日耀[1] 郑曦[1] 陈震[1] 

机构地区：[1]福建师范大学环境科学与工程学院,福建福州350007

出　　处：《高分子材料科学与工程》2015年第5期154-158,共5页Polymer Materials Science & Engineering

基　　金：福建省科技厅重点项目(2012H0019);福州市科技局项目(2012-G-116);福建省自然科学基金资助项目(2013J01034)

摘　　要：采用静电纺丝技术制备了聚丙烯酰胺(APAM)/壳聚糖(CS)-聚乙烯醇(PVA)纳米纤维双极膜(NFBPM),并用扫描电镜、接触角测定仪等对制备的双极膜进行了表征。研究结果表明,与用流延法制备的双极膜相比,采用静电纺丝法制备的APAM/CS-PVA NFBPM的纳米纤维阴、阳离子交换膜层的亲水性、离子交换容量、离子迁移性能等均得到提高,膜阻抗和槽电压明显降低。当电流密度为60 m A/cm2时,以其作为隔膜的电槽电压仅为6.1V,低于用流延法制备的APAM/CS-PVA双极膜(BPM)的电槽电压(8.6 V)。The electrospinning technique was used to prepare the anionic polyacrylamide( APAM) / chitosan( CS)-polyvinyl alcohol( PVA) nanofiber bipolar membrane( NFBPM),which was characterized by SEM,contact angle measurement and so on. The experiment results show that compared with the APAM / CS-PVA bipolar membrane( BPM)prepared by casting method,the hydrophilicities,ion exchange capacities and ion migration properties of the cation and anion exchange membrane layers for NFBPM are all improved,and the membrane impedance and cell voltage of the APAM / CS-PVA NFBPM are obviously decreased. When the current density is 60 m A / cm2,the voltage of cell using APAM / CS-PVA NFBPM as diaphragm is only 6. 1 V,which is lower than that of APAM / CS-PVA BPM( 8. 6V).

关 键 词：静电纺丝 双极膜 壳聚糖 聚乙烯醇 聚丙烯酰胺 

分 类 号：TQ340.64[化学工程—化纤工业] TB383.2[一般工业技术—材料科学与工程]