A laboratory apparatus for making hollow fiber membranes by the solution spinning process is described. Several hollow fiber membranes from polysulfone (Udel-3500) and polyethersulfone (Victrex) polymers have been made by using the above apparatus. The effects of spin-solution composition, length of air gap, and pressure used for fiber extrusion on fiber dimensions and ultrafiltration performance of the resulting membranes have been studied and are discussed.
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Liu et al. (1992) studied this question.
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