PVDF-g-PNIPAAm温敏膜的制备及性能研究  

Study on Preparation and Properties of PVDF-g-PNIPAAm Thermo-sensitive Membrane

作　　者：张涛 马潇 冯霞 Zhang Tao;Ma Xiao;Feng Xia(Tianjin Polytechnic University, School of Material Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, Chin)

机构地区：[1]天津工业大学材料科学与工程学院省部共建分离膜与膜过程国家重点实验室,天津300387

出　　处：《广东化工》2018年第8期26-27,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金(基金号51303129);天津市应用基础与前沿技术研究计划面上项目(项目编号:15JCYBJC17900)

摘　　要：为优化温敏膜的性能,通过在凝固浴中添加无机盐的方式制备PVDF-g-PNIPAAm温敏膜,并探讨了无机盐浓度对膜性能的影响。结果表明:分别在凝固浴中加入0%~20%的NaCl,随着NaCl加入的越来越多,水的活度越来越小,成膜速度也逐渐变慢,膜表面的亲水性链段增多,从而膜的亲水性和温敏性也得到了提高。In order to optimize the properties of thermo-sensitive membrane, PVDF-g-PNIPAAm membrane was prepared by adding inorganic salt in coagulation bath, and the effect of inorganic salt concentration on membranes＇ properties were discussed. The results show that when the NaCI content in the coagulation bath increases 0 % to 20 %, the activity of the water is decreases, therefore reduces the formation rate of membrane, and improve the hydrophilicity and thermo-sensitivity of the membrane.

关 键 词：温敏膜 凝固浴 无机盐 

分 类 号：TQ028.8[化学工程]