High permeation flux polypropylene/ethylene vinyl acetate co-blending membranes via thermally induced phase separation for vacuum membrane distillation desalination

Desalination ◽  
2016 ◽  
Vol 394 ◽  
pp. 44-55 ◽  
Author(s):  
Na Tang ◽  
Chunlei Feng ◽  
Huaiyuan Han ◽  
Xinxin Hua ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Membrane Distillation ◽  
Permeation Flux ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
Vacuum Membrane Distillation

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

2013 ◽  
Vol 790 ◽  
pp. 81-84 ◽  
Author(s):  
Na Tang ◽  
Shuang Zhang ◽  
Lei Zhang ◽  
Peng Gao Cheng ◽  
Jin Jin Li
Keyword(s):  
Phase Separation ◽  
Isotactic Polypropylene ◽  
Membrane Distillation ◽  
Mass Ratio ◽  
Thermally Induced Phase Separation ◽  
Nacl Solution ◽  
Optimum Conditions ◽  
Thermally Induced ◽  
Vacuum Membrane Distillation ◽  
Feed Temperature

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.

ECTFE porous membranes with conveniently controlled microstructures for vacuum membrane distillation

2015 ◽  
Vol 3 (46) ◽  
pp. 23549-23559 ◽  
Author(s):  
Jian Pan ◽  
Changfa Xiao ◽  
Qinglin Huang ◽  
Hailiang Liu ◽  
John Hu
Keyword(s):  
Phase Separation ◽  
Membrane Distillation ◽  
Diethyl Phthalate ◽  
Porous Membranes ◽  
Microporous Membranes ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
Vacuum Membrane Distillation ◽  
Poly Ethylene

Poly(ethylene chlorotrifluoroethylene) (ECTFE) microporous membranes were prepared via a thermally induced phase separation (TIPS) process using a mixed diluent of bis(2-ethylhexyl) adipate (DEHA) and diethyl phthalate (DEP).

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