tara aghebati
mahdi nouri - Department of Textile engineering , university of guilan,
marjan abbasi
payman sobhanipour

Polyacrylonitrile (PAN) hollow fiber membranes which were at the same time polymeric and asymmetric were manufactured through the dry-jet wet spinning process. Water with different amount of glycerin was used as the bore liquid and coagulation bath. The effects of the glycerin concentration on the hollow fiber permeation performance were investigated. We then utilized a field emission scanning electron microscopy (FESEM) to analyze the cross-section we finally gained through the offer mention process. Direct dye was used to measure the retention. The results proved that permeation is increased by adding glycerin to external and internal coagulation bath. In addition, hollow fibers spun in lower glycerin value would indicate lower hydraulic permeability and higher retention

glycerin in coagulation bath composition; Polyacrylonitrile; Hollow fibre membrane; Permeability; Retention