Fabrication of high-permeance polyketone (PK) hollow fiber membrane using triple-orifice spinneret via the thermally induced phase separation

Xiang, S; Zhang, P; Gonzales, RR; Li, B; Rajabzadeh, S; Shi, Y; Hu, M; Li, Z; Guan, K; Matsuyama, H

Fabrication of high-permeance polyketone (PK) hollow fiber membrane using triple-orifice spinneret via the thermally induced phase separation

Xiang, S Zhang, P Gonzales, RR Li, B Rajabzadeh, S

Shi, Y Hu, M Li, Z Guan, K Matsuyama, H

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Membrane Science, 2024, 695, pp. 122511
Issue Date:: 2024-03-01

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Field	Value	Language
dc.contributor.author	Xiang, S
dc.contributor.author	Zhang, P
dc.contributor.author	Gonzales, RR
dc.contributor.author	Li, B
dc.contributor.author	Rajabzadeh, S https://orcid.org/0000-0003-2883-4587
dc.contributor.author	Shi, Y
dc.contributor.author	Hu, M
dc.contributor.author	Li, Z
dc.contributor.author	Guan, K
dc.contributor.author	Matsuyama, H
dc.date.accessioned	2025-03-24T01:46:12Z
dc.date.available	2025-03-24T01:46:12Z
dc.date.issued	2024-03-01
dc.identifier.citation	Journal of Membrane Science, 2024, 695, pp. 122511
dc.identifier.issn	0376-7388
dc.identifier.issn	1873-3123
dc.identifier.uri	http://hdl.handle.net/10453/186157
dc.description.abstract	The co-extrusion technique employing a triple-orifice spinneret has been found to be an effective method to regulate the membrane pore size and surface structure. This is achieved by simultaneously extruding another solvent at the outer surface of the nascent polymer membrane. In this study, co-extrusion technology was employed to modify the outer surface structure of the polyketone (PK) hollow fiber membrane to enhance membrane permeance. By extruding various solvents at the outermost layer of the triple-orifice spinneret, besides the interaction among PK, diluent, and extruded solvent, it was emphasized that the viscosity of the outer solvent significantly influenced the penetration process and consequently affected the microstructure of the membrane surface. In addition, it was found that the higher water permeance was mainly attributed to the increased surface porosity rather than the slightly increased membrane pore size. The penetration of extrusion solvent propylene carbonate (PC) with low viscosity resulted in a porous outer surface with higher surface porosity, leading to high water permeance (2430 L m−2h−1bar−1). Furthermore, the air gap distance was optimized, and its effects on membrane structure, pore size, water permeance, and strength were discussed. This work provides a guideline for selecting preparation parameters and extrusion solvents to prepare PK membranes with high permeance.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Journal of Membrane Science
dc.relation.isbasedon	10.1016/j.memsci.2024.122511
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.title	Fabrication of high-permeance polyketone (PK) hollow fiber membrane using triple-orifice spinneret via the thermally induced phase separation
dc.type	Journal Article
utslib.citation.volume	695
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2025-03-24T01:46:08Z
pubs.publication-status	Published
pubs.volume	695

Abstract:

The co-extrusion technique employing a triple-orifice spinneret has been found to be an effective method to regulate the membrane pore size and surface structure. This is achieved by simultaneously extruding another solvent at the outer surface of the nascent polymer membrane. In this study, co-extrusion technology was employed to modify the outer surface structure of the polyketone (PK) hollow fiber membrane to enhance membrane permeance. By extruding various solvents at the outermost layer of the triple-orifice spinneret, besides the interaction among PK, diluent, and extruded solvent, it was emphasized that the viscosity of the outer solvent significantly influenced the penetration process and consequently affected the microstructure of the membrane surface. In addition, it was found that the higher water permeance was mainly attributed to the increased surface porosity rather than the slightly increased membrane pore size. The penetration of extrusion solvent propylene carbonate (PC) with low viscosity resulted in a porous outer surface with higher surface porosity, leading to high water permeance (2430 L m−2h−1bar−1). Furthermore, the air gap distance was optimized, and its effects on membrane structure, pore size, water permeance, and strength were discussed. This work provides a guideline for selecting preparation parameters and extrusion solvents to prepare PK membranes with high permeance.

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http://hdl.handle.net/10453/186157