Preparation of Hydrophobic Microporous Polypropylene/isotactic Polypropylene blending Membranes via Thermally Induced Phase Separation for Vacuum Membrane Distillation

摘要：

　　The hydrophobic microporous membranes were prepared from a blend system by thermally induced phase separation (TIPS) process.The polymer blend system was isotactic polypropylene (iPP)/high-density polyethylene (HDPE) and the diluent was soybean oil.The effects of the mass ratio of iPP and HDPE and the initial concentration of blending on the membranes structure were both investigated.Additionally,the influence of the feed temperature and the feed rate on the VMD performance of iPP/HDPE blend membranes was also investigated.For 0.5M aqueous NaCl solution,the VMD flux and reject ratio of the membranes reached 8.7kg/(m2.h) and nearly 100% under the optimum conditions(mass ration of iPP/HDPE was 6:1,and intial blend concentration was 38%),respectively.

关键词： Isotactic polypropylene Polyethylene Thermally induced phase separation Hydrophobic microporous membranes Vacuum membrane distillation

作者: Na Tang Shuang Zhang Lei Zhang Penggao Cheng Jinjin Li

作者单位: College of Marine Science and Engineering,Tianjin University of Science & Technology,Tianjin 300457,P.R.China;Tianjin Key Laboratory of Marine Resources and Chemistry,Tianjin 300457,P.R.China

会议类型: 国际会议

会议名称: 2013 International Conference on Advanced Engineering Materials and Architecture Sciences(2013先进工程材料与建筑科学国际会议)(ICAEMAS 2013)

会议地点: 西安

会议语种:英文

页码: 215-218

在线出版日期: 2013-07-27（万方平台首次上网日期，不代表论文的发表时间）