We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effect of cellulose fibers on morphology and pure water permeation of PSf membranes.
- Authors
dos Santos, Tiago; Pacheco, Kelvin A.; Poletto, Patrícia; Meireles, Carla S.; Grisa, Ana M. C.; Zeni, Mara
- Abstract
Chemical and physical changes are necessary to improve the transport properties of polymeric membranes. Cellulose fiber pulp from Pinus taeda was processed in knives and balls mills in order to reduce the dimensions of the fibers for later application in polysulfone (PSf) membranes. By adding cellulosic fibers in PSf membranes, a composite membrane with improved morphological properties, permeate flux and good resistance to pressure was obtained. The fibers as well as the PSf and PSf/cellulose fibers membranes were morphologically characterized by scanning electron microscopy. Tests of pure water permeate flux were performed with pressure up to 20 bar. The addition of 0.2% (wt) of cellulose fibers in the formation of composite membranes resulted in the elimination of macrovoids, causing an increase in pure water flux (50% ± 10) when pressure was risen.
- Subjects
CELLULOSE fibers; PERMEABILITY; BIOLOGICAL transport; ELECTRON microscopy; MORPHOLOGY
- Publication
Desalination & Water Treatment, 2011, Vol 27, Issue 1-3, p72
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2011.2054