功能化碳纳米管/SMANa/聚醚砜导电分离膜的制备及性能  

Preparation and Properties of Functionalized Carbon Nanotubes/SMANa/PES Conductive Separation Membranes

作　　者：常金燕 邵会菊 刁延芳 张芳芳 CHANG Jin-yan;SHAO Hui-ju;DIAO Yan-fang;ZHANG Fang-fang(College of Materials and Metallurgy,Guizhou University,Guiyang 550000,China;Guizhou Industrial Technology Research Institute,Guiyang 550000,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550000 [2]贵州省材料产业技术研究院,贵州贵阳550000

出　　处：《塑料科技》2022年第11期41-47,共7页Plastics Science and Technology

摘　　要：为改善聚醚砜(PES)导电分离膜的相容性和分离性能,将碱处理的苯乙烯-马来酸酐共聚物(SMANa)和功能化碳纳米管按照不同质量比与PES共混,使用非溶剂诱导相分离法成功制备功能化碳纳米管/SMANa/聚醚砜导电分离膜,对分离膜的结构、形貌和分离性能进行测试。结果表明:通过碱处理苯乙烯-马来酸酐共聚物,成功制备具有良好分散性的SMANa。当功能化碳纳米管添加量为6 g时,导电分离膜的电阻率达到2.929 97×104Ω·cm,纯水渗透通量达到1 188.1 L/(m^(2)·h),而对牛血清蛋白(BSA)的截留率为91.46%。在通入30 V电压后,导电分离膜对刚果红、甲基蓝染料渗透通量分别达到584 L/(m^(2)·h)和480 L/(m^(2)·h),截留率均达到99.99%。In order to improve compatibility and separation performance of polyethersulfone(PES) conductive separation membrane,the alkali-treated styrene-maleic anhydride copolymer(SMANa) and functionalized carbon nanotubes were blended with PES in different mass ratios,and the functionalized carbon nanotubes/SMANa/PES conductive separation membrane was successfully prepared by non-solvent induced phase separation method.The structure,morphology and separation performance of the separation membrane were tested.The results show that SMANa with good dispersibility is successfully prepared by alkali treatment of styrene-maleic anhydride copolymer.When the amount of functionalized carbon nanotubes is 6 g,the resistivity of the conductive separation membrane reaches 2.929 97×10~4Ω·cm,the pure water permeation flux reached 1 188.1 L/(m^(2)·h),and the rejection rate of bovine serum albumin(BSA) is 91.46%.After the voltage of 30 V is applied,the permeation flux of the conductive separation membrane to Congo red and methyl blue dyes reaches 584 L/(m^(2)·h) and 480 L/(m^(2)·h),respectively,and the rejection rates reach 99.99%.

关 键 词：聚醚砜 碳纳米管 导电分离膜 染料废水 

分 类 号：TB332[一般工业技术—材料科学与工程]