Abstract: Asymmetric ultrafiltration (UF)
membranes were prepared
from three kinds
of polymer namely
polyacrilonitryle (PAN), polysufone (PS), and cellulose acetate (CA) by phase
inversion method. Water was
used as non-solvent.
These membranes were
charachterized for ultrafiltration
membranes i.e measurement of solvent permeability (Lp), Molecular Weight Cut Off
membranes (MWCO) with various molecular weight of solute dekstran, and
morphology of the membrane by
Scanning Electron Microscopy
(SEM). SEM analysis
includes surface area and cross section area. Membranes with
polymer low concentration 10% as PAN-1, PS-1 and CA-1 have
the larger Lp
from PAN-2, PS-2,
and CA-2 that
have concentration 15%
for the same type
of polymer. These
occur because of the larger
pore membrane than
high concentration of polymer.
SEM analysis showed
a homogeneous distribution
in the surface membrane and
pore of membran
like sponge structure
from cross section
area. Membranes CA-1, CA-2,
FS-1 and FS-2
have Molecular Weight
Cut off (MWCO)
for the solute
dextran 40000 Da. For PS-2 and PS-2 membranes have MWCO of dextran above
20000 Da.
Keywords:
ultrafiltration membrane, solvent
permeability coeficient, MWCO,
membrane morphology
Penulis: Sri Aprilia, Amri Amin
Kode Jurnal: jpkimiadd110010
Artikel Terkait :
