Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.memsci.2008.02.063
DC FieldValue
dc.titleMacrovoid evolution and critical factors to form macrovoid-free hollow fiber membranes
dc.contributor.authorPeng, N.
dc.contributor.authorChung, T.-S.
dc.contributor.authorWang, K.Y.
dc.date.accessioned2014-10-09T06:52:45Z
dc.date.available2014-10-09T06:52:45Z
dc.date.issued2008-06-20
dc.identifier.citationPeng, N., Chung, T.-S., Wang, K.Y. (2008-06-20). Macrovoid evolution and critical factors to form macrovoid-free hollow fiber membranes. Journal of Membrane Science 318 (1-2) : 363-372. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2008.02.063
dc.identifier.issn03767388
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/89351
dc.description.abstractThe origins of macrovoid and the ways to eliminate it have received great attention and heavy debates during the last five decades, but no convincing and agreeable comprehension has been achieved. We have discovered, for the first time, that there should be critical values of polymer concentration, air gap distance and take-up speed, only above all of which the macrovoid-free hollow fibers can be successfully produced from a two-component (one-polymer and one-solvent) system. This observation has been confirmed for hollow fibers spun from different materials such as polysulfone, P84 and cellulose acetate, and may be universally applicable for other polymers. The major mechanisms why these critical parameters can effectively suppress macrovoids have been elaborated. The concept of acceleration of stretch was proposed and a quantitative relationship was observed to relate it with the number of macrovoids per unit area at the critical velocity and critical air gap distance. © 2008 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.memsci.2008.02.063
dc.sourceScopus
dc.subjectAir-gap distance
dc.subjectConcentration
dc.subjectHollow fiber
dc.subjectMacrovoid
dc.subjectTake-up speed
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.memsci.2008.02.063
dc.description.sourcetitleJournal of Membrane Science
dc.description.volume318
dc.description.issue1-2
dc.description.page363-372
dc.description.codenJMESD
dc.identifier.isiut000257005300041
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

121
checked on Sep 28, 2020

WEB OF SCIENCETM
Citations

107
checked on Sep 28, 2020

Page view(s)

136
checked on Sep 27, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.