PENGARUH PENAMBAHAN DIOKTIL FTALAT SEBAGAI ZAT PEMLASTIS TERHADAP KARAKTERISASI MEMBRAN POLISULFON
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Date
2014-05-21
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Abstract
Polysulfone is one of the polymers frequently used in membrane preparation. Plysulfone
membranes prepared by phase method shows a low mechanical strength when used in high
pressure or self-supporting membranes. In order to improve the mechanical strength of
membranes, dioctyl phthalate (DOP) was used as plasticizer. In his research, the membrane
composition used were 18 % polysulfone (PSf),64 % dimetylacetamide and varied concentration
of polyethyleneglycol (PEG) and dioctyl phthalate. The characterization included mechanical
properties, hidrofility and morphology membranes. The showed that the presence of DOP in the
membrane affected the membrane mechanical properties ; the optimum strength was 6.16 GPa
Hidrofility Polysulfone membranes decrease. The morphology analysis by Scanning Electron
Microscopy (SEM) showed the typical asymmetric structure where membranes skins had tiny
pores and macro void structure in sub layer membrane
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Keywords
membrane, polisulfone, plasticizer, dioctyl phthalate