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).

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.

Fabrication and properties of poly(ethylene chlorotrifluoroethylene) membranes via thermally induced phase separation (TIPS)

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45249-45257 ◽  
Author(s):  
Jian Pan ◽  
Changfa Xiao ◽  
Qinglin Huang ◽  
Chun Wang ◽  
Hailiang Liu
Keyword(s):  
Phase Separation ◽  
Porous Membranes ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
Poly Ethylene

Poly(ethylene chlorotrifluoroethylene) (ECTFE) porous membranes have been fabricated via thermally induced phase separation (TIPS).

Effect of Modified NanoSiO2 Agents on the Morphologies and Performances of UHMWPE Microporous Membrane via Thermally Induced Phase Separation

2016 ◽  
Vol 848 ◽  
pp. 726-732 ◽  
Author(s):  
Rong Liu ◽  
Yan Wang ◽  
Jing Zhu ◽  
Zu Ming Hu ◽  
Jun Rong Yu
Keyword(s):  
Phase Separation ◽  
Water Flux ◽  
Microporous Membranes ◽  
Thermally Induced Phase Separation ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Thermally Induced ◽  
And Performance ◽  
Surface Modified ◽  
Ultra High Molecular Weight

The effects of Modified NanoSiO2 Agents on the morphology and performance of ultra-high-molecular weight polyethylene (UHMWPE) microporous membranes via thermally induced phase separation were investigated in this work. The NanoSiO2 was surface modified by silane coupling agent KH570 (KH570-NanoSiO2). Differential scanning calorimetry (DSC) and X-Ray Diffraction (XRD) were performed to obtain crystallization of UHMWPE/white oil/ KH570-NanoSiO2 doped system. The morphology and performance of the prepared UHMWPE microporous membranes were characterized with scanning electron microscopy (SEM) and microfiltration experiments. The results showed that the morphology of UHMWPE membrane could be disturbed by KH570-NanoSiO2. Porosity and the rejection of Bovine serum albumin (BSA) of the blend membrane increased with increasing concentration of Modified NanoSiO2, while the water flux slightly decreased.

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