Microscopic behavior of polyvinylpyrrolidone hydrophilizing agents on phase inversion polyethersulfone hollow fiber membranes for hemofiltration

2009 ◽  
Vol 326 (2) ◽  
pp. 322-331 ◽  
Author(s):  
Qian Yang ◽  
Tai-Shung Chung ◽  
M. Weber
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes

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.

Phase inversion spinning of ultrafine hollow fiber membranes through a single orifice spinneret

2012 ◽  
Vol 421-422 ◽  
pp. 8-14 ◽  
Author(s):  
Jianfeng Yao ◽  
Kun Wang ◽  
Manrui Ren ◽  
Jefferson Zhe Liu ◽  
Huanting Wang
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes

Microfiber aligned hollow fiber membranes from immiscible polymer solutions by phase inversion

2021 ◽  
Vol 617 ◽  
pp. 118654 ◽  
Author(s):  
Jun Tae Jung ◽  
Ho Hyun Wang ◽  
Jeong F. Kim ◽  
Seong Min Jeon ◽  
Sang Hyun Park ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Polymer Solutions ◽  
Hollow Fiber Membranes ◽  
Immiscible Polymer ◽  
Fiber Membranes

Preparation of Highly Permeable Al2O3 Hollow Fiber Membrane via Phase Inversion Method with Ethanol as External Coagulant

2011 ◽  
Vol 412 ◽  
pp. 203-206 ◽  
Author(s):  
Xiao Zhen Zhang ◽  
Jian Er Zhou ◽  
Yu Hua Jiang ◽  
Jing Zhang
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Bending Strength ◽  
Hollow Fiber Membrane ◽  
Average Pore Size ◽  
Inversion Method ◽  
Asymmetric Structure ◽  
Hollow Fiber Membranes ◽  
Average Pore ◽  
Fiber Membranes

Highly permeable porous alumina (Al2O3) hollow fiber membranes have been developed by a combined phase inversion and sintering technique. Ethanol substituting for water was used as the external coagulant in order to prepare Al2O3 hollow fiber membranes with low trans-membrane resistance. The prepared Al2O3 membranes show a special asymmetric structure with an outer skin layer, highly porous inner surface and sub-layer composed of long and large finger-like pores. The influences of sintering temperature on the average pore size, N2 permeability and bending strength were investigated. Results show that Al2O3 hollow fiber membranes with higher permeability can be prepared using ethanol as the external coagulant. The prepared Al2O3 hollow fiber membranes show a N2 permeability of 871.5 m3·m-2·h-1·bar-1 and a bending strength of 91.4 MPa when sintered at 1550°C for 5h.

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