NDLI: Promotion of polysulfone membrane by thermal-mechanical stretching process

Content Provider	Springer Nature Link
Author	Mahmoudi, Farzaneh Saljoughi, Ehsan Mousavi, Seyed Mahmoud
Copyright Year	2013
Abstract	In this study, the effects of thermal-mechanical stretching process on the morphology and structure of asymmetric polysulfone membranes have been investigated. Phase inversion method was used for preparation of polymeric flat sheet membranes and membrane samples were prepared by composition of 15 % PSf as polymer and 85 % NMP as solvent. Stretching process was used to modify membrane performance by changing its pore size characteristics above the glass transition temperature of the membrane. Taguchi orthogonal array (OA) experimental design methodology with using Qualitek-4 software was applied for designing and also analyzing the results. Stretching temperature, load and load holding time as three effective factors and elongation percentage of membrane as final response were considered. The pore structure and roughness of the stretched and non stretched membranes were investigated by atomic force microscopy (AFM) while the membrane surface structure was characterized using scanning electron microscopy (SEM). Permeation results for pure water feed indicate that modified stretched membrane with 9.53 % elongation has approximately the pure water flux (PWF) about 1.8 times of the non-stretched membrane. Also surface roughness and fouling phenomenon are decreased significantly for this elongation percentage.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	10229760
Journal	Journal of Polymer Research
Volume Number	20
Issue Number	3
e-ISSN	15728935
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-02-22
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polysulfone membrane Stretching Qualitek-4 software Taguchi’s method Morphology Polymer Sciences Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Polymers and Plastics

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