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Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology

The influence of shear stress induced by spinneret geometry on morphology of Kaolin/PESf hollow fiber membranes has been studied. Different extrusion rates at two different rheology properties were introduced on a straight spinneret resulting in various shear rates. The hollow fiber membrane were sp...

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Main Authors: Mohd Suffian Misaran@Misran, Rosalam Sarbatly, Md. Mizanur Rahman
Format: Article
Language:English
English
Published: Asian Research Publishing Network 2017
Subjects:
TL500-777 Aeronautics. Aeronautical engineering
TN1-997 Mining engineering. Metallurgy
Online Access:https://eprints.ums.edu.my/id/eprint/38128/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/38128/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/38128/
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spelling my.ums.eprints.381282024-02-05T07:23:32Z https://eprints.ums.edu.my/id/eprint/38128/ Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology Mohd Suffian Misaran@Misran Rosalam Sarbatly Md. Mizanur Rahman TL500-777 Aeronautics. Aeronautical engineering TN1-997 Mining engineering. Metallurgy The influence of shear stress induced by spinneret geometry on morphology of Kaolin/PESf hollow fiber membranes has been studied. Different extrusion rates at two different rheology properties were introduced on a straight spinneret resulting in various shear rates. The hollow fiber membrane were spun using the wet spinning method to decouple the effect of shear and elongation stress due to gravity stretched drawing and bore fluid rate factors. The morphology of the spun hollow fiber was observed under Scanning Electron Microscope (SEM). Shear rates at the tip of the spinneret annulus were calculated and visualize using a computational fluid dynamics model. Simulation data shows that extrusion rate increment increases the shear rate at the spinneret wall while fluid velocity maximize at the centre of annulus. The maximum shear rate recorded was 431 s⁻¹ at an extrusion pressure of 0.5 bar. It is observed that higher shear rates increases the density of the finger like voids and ultimately affect the hollow fiber performance in general. Asian Research Publishing Network 2017 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/38128/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/38128/2/FULL%20TEXT.pdf Mohd Suffian Misaran@Misran and Rosalam Sarbatly and Md. Mizanur Rahman (2017) Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology. ARPN Journal of Engineering and Applied Sciences, 12 (10). pp. 3118-3124. ISSN 1819-6608
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TL500-777 Aeronautics. Aeronautical engineering
TN1-997 Mining engineering. Metallurgy
spellingShingle TL500-777 Aeronautics. Aeronautical engineering
TN1-997 Mining engineering. Metallurgy
Mohd Suffian Misaran@Misran
Rosalam Sarbatly
Md. Mizanur Rahman
Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
description The influence of shear stress induced by spinneret geometry on morphology of Kaolin/PESf hollow fiber membranes has been studied. Different extrusion rates at two different rheology properties were introduced on a straight spinneret resulting in various shear rates. The hollow fiber membrane were spun using the wet spinning method to decouple the effect of shear and elongation stress due to gravity stretched drawing and bore fluid rate factors. The morphology of the spun hollow fiber was observed under Scanning Electron Microscope (SEM). Shear rates at the tip of the spinneret annulus were calculated and visualize using a computational fluid dynamics model. Simulation data shows that extrusion rate increment increases the shear rate at the spinneret wall while fluid velocity maximize at the centre of annulus. The maximum shear rate recorded was 431 s⁻¹ at an extrusion pressure of 0.5 bar. It is observed that higher shear rates increases the density of the finger like voids and ultimately affect the hollow fiber performance in general.
format Article
author Mohd Suffian Misaran@Misran
Rosalam Sarbatly
Md. Mizanur Rahman
author_facet Mohd Suffian Misaran@Misran
Rosalam Sarbatly
Md. Mizanur Rahman
author_sort Mohd Suffian Misaran@Misran
title Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
title_short Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
title_full Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
title_fullStr Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
title_full_unstemmed Study Of Shear Rates in Spinning Process of Kaolin/polyethersulfone (PESFf) Membrane Precursor: Effect on Fiber Morphology
title_sort study of shear rates in spinning process of kaolin/polyethersulfone (pesff) membrane precursor: effect on fiber morphology
publisher Asian Research Publishing Network
publishDate 2017
url https://eprints.ums.edu.my/id/eprint/38128/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/38128/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/38128/
_version_ 1792152898413527040
score 13.211869

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