羟基化PPESK复合膜的制备及性能研究  

Preparation and performance of hydroxylated PPESK composite membrane

作　　者：邹宇阳 李战胜[1] 赵思雨 张守海[1] 蹇锡高[1] ZOU Yuyang;LI Zhansheng;ZHAO Siyu;ZHANG Shouhai;JIAN Xigao(School of Chemical Engineering,Technology Innovation Center of High Performance Resin Materials,Liaoning Province,Dalian University of Technology,Dalian Liaoning 116024,China)

机构地区：[1]大连理工大学化工学院,辽宁省高性能树脂材料专业技术创新中心,辽宁大连116024

出　　处：《化学工业与工程》2023年第3期13-19,共7页Chemical Industry and Engineering

基　　金：辽宁省“兴辽英才”项目科技创新领军人才(XLYC1802073);大连市顶尖及领军人才项目(2019RD08)。

摘　　要：采用NaBH4对杂萘联苯聚芳醚砜酮(PPESK)支撑膜进行羟基化亲水改性,通过间苯二胺和均苯三甲酰氯的界面聚合反应制备复合膜。利用傅里叶变换红外光谱仪(FT-IR)、水接触角仪、扫描电子显微镜(SEM)和X射线光电子能谱仪(XPS)研究羟基化改性对膜表面的形貌结构、原子组成的影响,并测定复合膜对2000 mg·L^(-1)Na_(2)SO_(4)水溶液的分离性能。结果表明:羟基化改性的PPESK-OH支撑膜的亲水性增强;PPESK-OH复合膜的聚酰胺层的交联度较高;PPESK-OH复合膜和PPESK复合膜的脱盐率接近,PPESK-OH复合膜的水通量较PPESK复合膜增大了约38%。Poly(phthalazinone ether sulfone ketone)(PPESK)substrate membrane was hydroxylated with NaBH4.The composite membrane was prepared via the traditional interfacial polymerization of mphenylenediamine(MPD)and trimethylene chloride(TMC).FT-IR,water contact angle goniometer,SEM and XPS were applied to characterize the surface morphology and elements distribution of the membranes.The hydrophilicity of PPESK-OH substrate membrane was enhanced by the presence of hydroxyl group reduced from carbonyl group.The cross-linking degree in polyamide(PA)layer of PPESK-OH composite was greater than that of PPESK composite membrane.For 2000 mg·L^(-1) Na2 SO4 aqueous solution,the salt rejection of the PPESK-OH composite was almost the same as that of the PPESK composite membrane,the flux of the former was increased by 38%.

关 键 词：杂萘联苯聚芳醚砜酮 羟基化改性 复合膜 

分 类 号：TQ028.8[化学工程]