Optimization of structure and properties of polyphenylene sulfide porous membrane by controlling the process of thermally induced phase separation

2020 ◽  
Vol 69 (9) ◽  
pp. 813-821
Author(s):  
Zhongchen He ◽  
Hongqing Ren ◽  
Junfeng Li ◽  
Tingjian Huang ◽  
Shengchang Zhang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Porous Membrane ◽  
Polyphenylene Sulfide ◽  
Structure And Properties ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced

Preparation of porous membrane by combined use of thermally induced phase separation and immersion precipitation

Polymer ◽  
2002 ◽  
Vol 43 (19) ◽  
pp. 5243-5248 ◽  
Author(s):  
Hideto Matsuyama ◽  
Yusuke Takida ◽  
Taisuke Maki ◽  
Masaaki Teramoto
Keyword(s):  
Phase Separation ◽  
Porous Membrane ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
Combined Use

Investigation of Formation for Poly(vinylidene fluoride) Membrane Using Thermally Induced Phase Separation

2020 ◽  
Vol 20 (11) ◽  
pp. 7140-7144
Author(s):  
Jeong Woo Lee ◽  
Kwang Seop Im ◽  
Sang Yong Nam
Keyword(s):  
Phase Separation ◽  
Dibutyl Phthalate ◽  
Vinylidene Fluoride ◽  
Weight Ratio ◽  
Porous Membrane ◽  
Silica Content ◽  
Dioctyl Phthalate ◽  
Thermally Induced Phase Separation ◽  
Thermally Induced ◽  
Poly Vinylidene Fluoride

In this study, thermally induced phase separation (TIPS) was used to fabricate a water treatment membrane composed of poly(vinylidene fluoride) (PVDF) and silica. Dioctyl phthalate (DOP) and dibutyl phthalate (DBP) were used as diluents. Crystallization temperature, cloud point, and morphology were observed to investigate the conditions of PVDF/silica/diluent membrane preparation. SEM revealed that the porosity of the membranes was increased with an increase in silica content. Phase diagram and morphology results revealed that 50 wt% PVDF+silica with a PVDF:silica weight ratio of 4.5:1 is the best composition for manufacturing a porous membrane.

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