Effect of shear stress within the spinneret on hollow fiber membrane morphology and separation performance

Tai-Shung Chung*, Soo Khean Teoh, Wayne W.Y. Lau, M. P. Srinivasan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

The effects of shear stress on the morphology and gas separation performance of hollow fiber membranes were investigated. The hollow fiber membranes spun with large die length to flow channel gap ratio with high shear exhibited tighter molecular packing structure and higher selectivity. Hollow fibers spun with high shear rate have lower thermal expansion coefficient and higher loss modulus. The fully developed high shear stress within the spinneret altered the thermodynamics of nodular formation of the hollow fiber membranes.

Original languageEnglish (US)
Pages (from-to)3930-3938
Number of pages9
JournalIndustrial and Engineering Chemistry Research
Volume37
Issue number10
DOIs
StatePublished - Jan 1 1998

Keywords

  • Fiber membrane
  • Morphology

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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