工艺条件对复合膜性能影响研究  

Study on effects of process conditions on performance of composite membranes

作　　者：傅燕[1] 王薇[2] 

机构地区：[1]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300160 [2]天津膜天膜工程技术有限公司,天津300160

出　　处：《化工新型材料》2011年第3期67-69,共3页New Chemical Materials

基　　金：国家重点基础研究发展计划(973计划)课题(2006CB708602);天津市科技攻关计划项目(06YFGZSH01700)

摘　　要：以聚砜中空纤维超滤膜为基膜,哌嗪(PIP)为水相反应单体,均苯三甲酰氯(TMC)为有机相反应单体,通过界面聚合法制备聚酰胺复合纳滤膜。研究了水相单体浓度、有机相单体浓度、热处理温度和时间等条件对复合膜分离性能的影响;并初步探讨了操作压力、料液温度和pH值等操作条件对复合膜分离性能的影响。实验结果表明,在0.7MPa,25℃下,所制备的复合膜对1g·L-1MgSO4的截留率为97.49%,水通量为33.81 L·m-2·h-1。Polyamide composite nanofiltration membrane was prepared by interfacial polymerization of piperazine（PIP） as the aqueous phase monomer and trimesoyl chloride（TMC） as the organic phase monomer on the surface of polysulfone（PSF） hollow fiber ultrafiltration membrane as the base film.The effects of the concentration of PIP aqueous solution,the concentration of TMC organic solution,heat treating temperature and time on the separation performance of composite membranes were investigated.The influences of operating conditions such as operating pressure,temperature and pH value of feed solution on the performance of composite membranes were discussed.From the experiment results,at 0.7MPa and 25℃,the rejection of NF membrane was 97.49% to 1g·L-1MgSO4 as well as the flux was 33.81 L·m-2·h-1.

关 键 词：哌嗪 均苯三甲酰氯 中空纤维 界面聚合 复合纳滤膜 

分 类 号：TB383.2[一般工业技术—材料科学与工程]