Electronic Theses and Dissertation

Telah dilakukan penelitian membran selulosa asetat berbahan dasar limbah tandan
kosong kelapa sawit yang digrafting glisidil metakrilat. Tujuan pembuatan membran
ialah untuk membutikan kinerja penghilangan urea dalam cairan dialisat.
Karakterisasi membran dilakukan dengan menggunakan Scanning Electron
Microscopy (SEM), X-Ray Diffraction (XRD), Differential Thermal Analysis (DTA),
Thermogravimetric Analysis (TGA) dan Universal Testing Machine. Membran
selulosa asetat murni (SA-GMA0%) memiliki derajat pengembangan dan porositas
sebesar 14,695 % dan 27,522 %, sedangkan membran yang digrafting GMA 15%
(SA-GMA15%) memiliki derajat pengembangan dan porositas yang lebih baik
sebesar 28,125 % dan 33,755 %. Membran SA-GMA 0% memiliki nilai fluks
sebesar 27,747 L/m2 jam, sedangkan membran SA-GMA 15% memiliki nilai fluks
sebesar 42,882 L/m2 jam. Membran SA-GMA0% mengadsorpsi urea sebesar 44,651
mg/g, sedangkan membran SA-GMA 15% mengadsorpsi urea sebesar 73,134 mg/g
dengan total removal urea masing-masing membran 85,898 mg/g dan 128,779 mg/g.
Membran tergrafting GMA 15% (SA-GMA15%) memiliki kemampuan yang lebih
baik dibandingkan membran murni (SA-GM0%) dalam proses penghilangan urea
dalam cairan urea.
Kata kunci: Membran, selulosa asetat, Glisidil metkrilat (GMA), dialisat, urea,
adsorpsi.

A study has been conducted on cellulose acetate membranes made from oil palm empty fruit bunches grafted with glycidyl methacrylate. The purpose of making the membrane is to prove the performance of urea removal in dialysate fluid. Membrane characterization was carried out using Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Differential Thermal Analysis (DTA), Thermogravimetric Analysis (TGA) and Universal Testing Machine. Pure cellulose acetate membrane (SA-GMA0%) has a degree of swelling and porosity of 14.695% and 27.522%, while the membrane grafted with 15% GMA (SA-GMA15%) has a better degree of swelling and porosity of 28.125% and 33.755%. The SA-GMA 0% membrane has a flux value of 27.747 L/m2 hour, while the SA-GMA 15% membrane has a flux value of 42.882 L/m2 hour. The SA-GMA0% membrane adsorbs urea of 44.651 mg/g, while the SA GMA 15% membrane adsorbs urea of 73.134 mg/g with a total urea removal of 85.898 mg/g and 128.779 mg/g respectively. The GMA 15% grafted membrane (SA GMA15%) has a better ability than the pure membrane (SA-GM0%) in the process of removing urea in urea liquid. Keywords: Membrane, cellulose acetate, Glycidyl methacrylate (GMA), dialysate, urea, adsorption.