Tuning Poly(vinyl chloride) Membrane Morphology to Suit Vacuum Membrane Distillation: Focusing on Membrane Preparation Process Based on Phase Separation

2021 ◽  
pp. 127610
Author(s):  
Pedram Mohammadi Esfarjani ◽  
Hossein Fashandi ◽  
Mehdi Karevan ◽  
Ahmad Moheb
Keyword(s):  
Phase Separation ◽  
Vinyl Chloride ◽  
Membrane Distillation ◽  
Membrane Preparation ◽  
Preparation Process ◽  
Membrane Morphology ◽  
Poly Vinyl Chloride ◽  
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.

Phase separation in blends of oligo (caprolactone glycol)-based polyurethane with poly(vinyl chloride)

1987 ◽  
Vol 22 (5) ◽  
pp. 1563-1572 ◽  
Author(s):  
V. V. Shilov ◽  
V. N. Bliznyuk ◽  
Yu. S. Lipatov
Keyword(s):  
Phase Separation ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride
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