高性能FeCl_(2)·4H_(2)O/聚硫酸酯(PSE)中空纤维共混超滤膜性能和结构的探究  

Investigation of the performance and structure of high-performance FeCl_(2)·4H_(2)O/polysulfate(PSE)ultrafiltration membranes

作　　者：马凌飞 王薇[1] 王佳琦 李玮阳 MA Lingfei;WANG Wei;WANG Jiaqi;LI Weiyang(Tiangong University,College of Materials Science and Engineering,Tianjin 300387)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津化工》2024年第5期38-42,共5页Tianjin Chemical Industry

基　　金：中央引导地方项目(ZYYD2023B18);院士类自治区项目(2022LQ02002)。

摘　　要：以四水氯化亚铁(FeCl_(2)·4H_(2)O)为改性剂,采用非溶剂致相分离法(NIPS)制备FeCl_(2)·4H_(2)O/聚硫酸酯(PSE)中空纤维共混超滤膜,本文研究了FeCl_(2)·4H_(2)O的质量分数对FeCl_(2)·4H_(2)O/PSE中空纤维共混超滤膜微观结构、截留性能和力学性能等影响。实验采用场发射扫描电子显微镜(SEM)观察超滤膜的形貌结构,使用接触角测量仪和电子拉力试验机测试超滤膜的亲水性和力学性能,利用实验室自制的测试装置测试纯水通量和截留率。实验结果表明:当FeCl_(2)·4H_(2)O为5%时,FeCl_(2)·4H_(2)O/PSE中空纤维共混超滤膜的性能最优,其纯水通量为210 L/(m^(2)·h)。Preparation of FeCl_(2)·4H_(2)O/PSE hollow fiber blended ultrafiltration membrane by non-solvent-induced phase separation(NIPS)method using FeCl_(2)·4H_(2)O as modifier.The effects of FeCl_(2)·4H_(2)O content on the microstructure,retention performance and mechanical properties of FeCl_(2)·4H_(2)O/PSE hollow fiber blended ultrafiltration membranes were investigated.The morphology of the membranes was observed using a scanning electron microscope(SEM).The hydrophilicity and mechanical properties of the membranes were observed using a contact angle measurement instrument and an electronic tensile testing machine,respectively.The pure water flux and rejection rate were measured using a self-made measuring device.The experimental results showed that the membrane exhibited optimal performance when the FeCl_(2)·4H_(2)O content was 5%.The pure water flux of the membrane was 210 L/(m^(2)·h).

关 键 词：聚硫酸酯 四水氯化亚铁 中空纤维共混超滤膜 

分 类 号：TQ016[化学工程]