Understanding the multiple functions of styrene-co-maleic anhydride in fabricating polyvinylidene fluoride hollow fiber membrane via coupled phase inversion process and its effect on surface infiltration behavior and membrane permeability

2019 ◽  
Vol 590 ◽  
pp. 117269 ◽  
Author(s):  
Pengfei Zhang ◽  
Shang Xiang ◽  
Hao Wang ◽  
Yuelin Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Hollow Fiber ◽  
Polyvinylidene Fluoride ◽  
Phase Inversion ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Inversion Process ◽  
Multiple Functions ◽  
Infiltration Behavior ◽  
Phase Inversion Process

scholarly journals Design and characterization of ceramic hollow fiber membrane derived from waste ash using phase inversion-based extrusion/sintering technique for water filtration

2020 ◽  
pp. 1-18
Author(s):  
Zhong Sheng Tai ◽  
Mohd Hafiz Dzarfan Othman ◽  
Azeman Mustafa ◽  
Mohd Irfan Hatim Mohamed Dzahir ◽  
Siti Khadijah Hubadillah ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Hollow Fiber Membrane ◽  
Water Filtration ◽  
Fiber Membrane

Structure Morphology of Polyethersulfone Hollow Fiber Membrane via Immersion Precipitation Phase Inversion Process

2012 ◽  
Vol 152-154 ◽  
pp. 574-578 ◽  
Author(s):  
Ping Lan ◽  
Wei Wang
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Hollow Fiber Membrane ◽  
Pure Water ◽  
Water Flux ◽  
Additive Concentration ◽  
Hollow Fiber Membranes ◽  
Fiber Membrane ◽  
Fiber Membranes ◽  
And Performance

Polyethersulfone (PES) hollow fiber membranes have been widely used in many fields, such as ultrafiltration, microfiltration, reverse osmosis, liquid/liquid or liquid/solid separation, gas separation, hemodialysis, and so on. In this paper, the sheet PES hollow fiber membranes were prepared. The morphology and performance of membranes can be controlled. By studying the influence of the compositions and conditions on the morphology and performance of PES hollow fiber membrane, the relationship of morphology and performance of the membrane is acquired. The additives were used such as glycerol, BuOH and PEG. In addition, immerse phase inversion was used as membranes preparation method. The morphology of the membrane was controlled by changing kinds of additive, concentration of additive and so on. It was found that the membrane morphologies were changed by additive obviously. Porosity , pure water flux, scanning electron microscopy(SEM) were used to characterize the morphology and performance of the membranes.

Fabrication of robust superhydrophobic fabrics based on coating with PVDF/PDMS

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84887-84892 ◽  
Author(s):  
Chao-Hua Xue ◽  
Xing Li ◽  
Shun-Tian Jia ◽  
Xiao-Jing Guo ◽  
Min Li
Keyword(s):  
Polyvinylidene Fluoride ◽  
Phase Inversion ◽  
Inversion Process ◽  
Phase Inversion Process

Superhydrophobic fabrics were fabricated by roughening fibers with coatings of polyvinylidene fluoride and polydimethylsiloxane via a nonsolvent-induced phase-inversion process.

The Effects of Nanocrystaline Cellulose on Polysulfone Hollow-Fiber Ultrafiltration Membrane

2012 ◽  
Vol 528 ◽  
pp. 210-213 ◽  
Author(s):  
Xuan Wang ◽  
Hao Long Bai ◽  
Li Ping Zhang
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Hollow Fiber Membrane ◽  
Pure Water ◽  
Water Flux ◽  
Ultrafiltration Membrane ◽  
Fiber Membrane ◽  
Elongation At Break ◽  
Pure Water Flux ◽  
Scaning Electron Microscopy

Nanocrystalline cellulose was used to blend with polysulfone to improve the hydrophicility and mechanical properties of PS hollow fiber ultrafiltration membrane. The method of dry-jet/wet-spining was adopted to form the hollow fiber by the mechanism of phase-inversion. In addition, the content of NCC was increased gradually from 0% to 1 wt% to examin the permeation flux, rejection ratio of bovine serum albumin(BSA) and mechanical strength of PS hollow-fiber. We find that the pure water flux was soared when NCC content was increased. The tensile strength and elongation at break were also detected and calculated. The results indicated that the properties of PS hollow-fiber membrane with appropriate NCC content were enhanced. The hollow fiber membranes were also observed with scaning electron microscopy(SEM) to explore the porous structure

Lake Water Treatment Using Polyurethane-Polyvinylidene Fluoride Hollow Fiber Blend Membrane and Polyvinylidene Fluoride Hollow Fiber Membrane in a Coagulation-Microfiltration Process

2012 ◽  
Vol 518-523 ◽  
pp. 755-759
Author(s):  
Liang Wang ◽  
Bin Zhao ◽  
Shu Ling Ma ◽  
Hong Wei Zhang ◽  
Qin Yang
Keyword(s):  
Hollow Fiber ◽  
Lake Water ◽  
Polyvinylidene Fluoride ◽  
Hollow Fiber Membrane ◽  
Pollutant Removal ◽  
Transmembrane Pressure ◽  
Permeate Flux ◽  
Fiber Membrane ◽  
Blend Membrane ◽  
Ring Structures

Polyurethane-polyvinylidene fluoride (PU-PVDF) hollow fiber blend membrane prepared by melting, spinning and drawing processes was used to treat lake water in a submerged coagulation-microfiltration (SCMF) process. This novel membrane is characterized by its elastic pore size increase with the pressure increase; therefore, the backwashing step could effectively remove the depositions stuck in membrane pores. Compared to the system using polyvinylidene fluoride (PVDF) hollow fiber membrane, the membrane anti-fouling ability was stronger in the system using PU-PVDF blend membrane, and the transmembrane pressure increased more slowly at a fixed permeate flux. Organic matters were removed comparably for both membranes during the first 3 h treatment, but those with benzene ring structures were susceptibly restricted by PU-PVDF blend membrane as the filtration went on. The turbidity removal was stable in the PU-PVDF system with an average of 97%, and was slightly higher than that in the PVDF system. The outstanding anti-fouling ability and excellent pollutant removal performance make the PU-PVDF hollow fiber blend membrane a better candidate for the SCMF process.

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