نتایج جستجو برای: polysulfone membrane

تعداد نتایج: 389571  

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2000
H F Woods M Nandakumar

Improved survival for haemodialysis patients has been reported for synthetic, high-flux biocompatible membranes. The reported data fail to answer the question whether improved survival is related to an effect of enhanced biocompatibility or to increased clearance of larger molecular species of putative uraemic toxins. A retrospective analysis of 715 patients treated by continuous haemodialysis ...

Journal: :journal of membrane science and research 0
zohreh abolfazli department of chemical engineering, babol noshirvani university of technology, babol, iran ahmad rahimpour department of chemical engineering, babol noshirvani university of technology, babol, iran

this study focuses on the preparation and modification of a thin-film composite (tfc) hollow fiber polyamide membrane fabricated by the interfacial polymerization of piperazine (pip) and trimesoyl chloride (tmc) on a porous polysulfone substrate. the effects of triethylenetetramine (teta) and silica nanoparticles (sio2) contents in the aqueous phase (as the additives) on the morphology and perf...

Journal: :Water Science & Technology: Water Supply 2022

Abstract Surface positve-charged composite membranes were prepared through two guanidine group containing polymers, polyhexamethylene (PHMG) and biguanidine (PHMB). They used as aqueous phase monomers in an interfacial polymerization (IP) process reacting with trimesoyl chloride (TMC) on the surface of polysulfone (Psf) ultrafiltration membrane. Piperazine (PIP) provided best pH adjustment amon...

Journal: :Computers & Chemical Engineering 2005
P. Cruz J. Carlos Santos F. D. Magalhães A. Mendes

In this work we present a comparison of different discretization techniques, in the context of finite volume formulation, for the solution of separation processes involving adsorption, absorption and permeation. The mathematical model developed assumes axially dispersed plug-flow, uniform bed/sorbent/membrane properties along the axial coordinate and negligible radial gradients. The algorithm u...

2016
Asim Mushtaq Hilmi Bin Mukhtar Azmi Mohd Shariff

In this study, research will be carried out to identify the functional group behavior of glassy and rubbery polymeric blend membrane with amines. Polymeric blend membranes with different blending ratios were prepared and the developed membranes were characterized by FTIR to see the effect of blend ratio on different functional groups. The developed membranes are flat dense sheet membrane of 20%...

2014
Simon W. Lines Angela M. Carter Emma J. Dunn Elizabeth J. Lindley James E. Tattersall Mark J. Wright

BACKGROUND Vitamin E (VE) bonded polysulfone dialysis membranes have putative erythropoiesis stimulating agent (ESA)-sparing and anti-inflammatory properties based on data from a small number of studies. We sought to investigate this in a large, prospective 12-month randomized controlled trial. METHODS Two-hundred and sixty prevalent haemodialysis (HD) patients were randomized to dialysis wit...

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