Understanding the non-solvent induced phase separation (NIPS) effect during the fabrication of microporous PVDF membranes via thermally induced phase separation (TIPS)

Jung, Jun Tae; Kim, Jeong F.; Wang, Ho Hyun; Nicolò, E. Di; Drioli, Enrico; Lee, Young Moo

doi:10.1016/j.memsci.2016.04.069

Cited by 368 publications

(178 citation statements)

References 58 publications

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“…But above all, phase inversion method is most important and common process for preparation of membranes from large number of building blocks of polymer [62][63][64].…”

Section: Membrane Preparation Methodsmentioning

confidence: 99%

“…Morphology of polymeric membrane depends upon mutual exchange of two solvents. NIPS method is commonly employed for preparing asymmetric membrane with porous sub layer structure and dense skin layer [62]. NIPS method requires complicated control of the solvent exchange rate to obtain a desired structure and good performance by varying the dope composition, coagulation medium, quenching bath temperature, or evaporation time ( Figure 6).…”

Section: Phase Inversion Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

172

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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“…But above all, phase inversion method is most important and common process for preparation of membranes from large number of building blocks of polymer [62][63][64].…”

Section: Membrane Preparation Methodsmentioning

confidence: 99%

Section: Phase Inversion Methodsmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

172

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show abstract

“…Ultrafiltration membranes have been traditionally prepared using phase inversion strategies such as the nonsolvent induced phase separation (NIPS) . The NIPS practically involves introducing the solution of the polymer (membrane material) to a nonsolvent to allow for demixing of the polymer to form the porous membrane.…”

Section: Introductionmentioning

confidence: 99%

“…This contamination also poses intrinsic problems as the subsequent water treatment, which is required is energy intensive. Thus, there is active interest in academia and industry for sustainable and green processes to obtain membranes, especially synthesized from PES .…”

Section: Introductionmentioning

confidence: 99%

Synergy of supercritical CO₂ and superheated H₂O for enhanced processability of polyethersulfone towards open cell foams

Owusu-Nkwantabisah

Staudt

Lesser

2017

Polymer Engineering & Sci

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Processing of a high glass transition (Tg) polymer such as polyethersulfone (PES; Tg = 225°C) poses a challenge as it requires high processing temperatures or sometimes toxic solvents. In this work, we report of a facile process using superheated water (shH2O) and supercritical carbon dioxide (scCO2) co‐media. PES solids were foamed in the scCO2/shH2O co‐media or scCO2 alone in a batch process at different temperatures. The scCO2/shH2O produced a synergistic effect and achieved PES foams even at processing temperatures as low as 85°C below the nominal Tg; whereas, scCO2 alone required higher processing temperatures. Moreover, the scCO2/shH2O co‐media produced highly porous PES foams that were at least 23% higher in porosity than what was obtained using scCO2 alone. In addition, the scCO2/shH2O produced open cell foams at some processing conditions; whereas, scCO2 produced closed cell morphologies. Since both CO2 and H2O are innocuous, this approach has potential for use in the preparation of ultrafiltration membranes, which currently require the use of toxic solvents for their fabrication by way of the phase inversion process. Moreover, the use of scCO2/shH2O is a cost‐effective approach for the processing of high Tg polymers at significantly lower temperatures. POLYM. ENG. SCI., 58:1108–1114, 2018. © 2017 Society of Plastics Engineers

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“…These properties are the key feature of a good separation membrane in contactor application. There have been numbers of studies on the application field of the PVDF membrane [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics simulation of membrane in room temperature ionic liquids

Theng

Jumbri²,

Wirzal

2017

AIP Conference Proceedings

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Understanding the non-solvent induced phase separation (NIPS) effect during the fabrication of microporous PVDF membranes via thermally induced phase separation (TIPS)

Cited by 368 publications

References 58 publications

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Synergy of supercritical CO₂ and superheated H₂O for enhanced processability of polyethersulfone towards open cell foams

Molecular dynamics simulation of membrane in room temperature ionic liquids

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Understanding the non-solvent induced phase separation (NIPS) effect during the fabrication of microporous PVDF membranes via thermally induced phase separation (TIPS)

Cited by 368 publications

References 58 publications

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Synergy of supercritical CO2 and superheated H2O for enhanced processability of polyethersulfone towards open cell foams

Molecular dynamics simulation of membrane in room temperature ionic liquids

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Product

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Synergy of supercritical CO₂ and superheated H₂O for enhanced processability of polyethersulfone towards open cell foams