Jelita Indrianti, - (2019) KAJIAN TENTANG PENAMBAHAN ALGINAT PADA MATRIKS PVA/GA DAN KETEBALAN MEMBRAN PVA/GA/ALGINAT TERHADAP PERFORMA PERMEASI KALIUM KLORIDA DARI LARUTANNYA KE DALAM MEDIA AQUA-DM. S1 thesis, Universitas Pendidikan Indonesia.
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Abstract
ABSTRAK Telah dilakukan penelitian tentang uji permeasi kalium klorida (KCl) dari larutannya ke dalam media aqua-DM melalui membran hidrogel berbasis poli(vinil alkohol)/glutaraldehid/alginat (PVA/GA/Alginat) yang telah divariasikan ketebalannya. Penelitian ini bertujuan untuk melihat pengaruh penambahan alginat pada matriks PVA/GA dan ketebalan terhadap laju permeasi kalium klorida dari larutannya ke dalam media aqua-DM melalui membran hidrogel PVA/GA/Alginat. Pada penelitian ini dilakukan (1) preparasi dan karakterisasi membran hidrogel; (2) pencucian membran hidrogel; dan (3) uji permeasi KCl melalui membran hidrogel. Tahap preparasi dilakukan dengan mencampurkan sediaan PVA, GA dalam perbandingan volume 1:1 dan PVA, GA, dan Alginat dalam perbandingan volume 1:1:1 yang selanjutnya dicetak dan dikeringkan. Pencucian membran hidrogel menggunakan aqua-DM sebanyak 400 mL. Morfologi membran hidrogel ditentukan dengan Scanning Electron Microcope (SEM) dan karakterisasi gugus fungsi menggunakan Fourier Transform Infra Red (FTIR). Uji permeasi dilakukan dengan menyuntikkan 2 mL larutan KCl 1,0 M ke tabung desorpsi yang dilapisi oleh lembaran membran hidrogel yang telah dikeringkan. Analisis SEM menunjukkan bahwa pencucian bertahap membuat membran hidrogel menjadi semakin bersih. Hasil pengujian FTIR memberikan informasi bahwa mekanisme crosslinking difasilitasi dengan pembentukan jembatan asetal. Uji permeasi KCl menunjukkan bahwa membran hidrogel PVA/GA/Alginat dengan ketebalan yang berbeda memberikan trendline yang sama. Semakin tebal membran hidrogel, maka akan semakin rendah laju permeasi KCl. Kata kunci: membran hidrogel, PVA, alginat, ketebalan, uji permeasi ABSTRACT Research has been conducted on the permeation test of potassium chloride (KCl) from its solution into aqua-DM media through poly (vinyl alcohol)/glutaraldehyde/alginate (PVA / GA / Alginate) hydrogel membrane which has varied in thickness. The purpose of this research was to see the effect of adding alginate to the PVA / GA matrix and thickness in permeation of potassium chloride from its solution into aqua-DM media through the PVA/GA/Alginate hydrogel membrane. Methods used in this research are (1) preparation and characterization of hydrogel membranes; (2) washing the hydrogel membrane; and (3) permeation test of KCl through the hydrogel membrane. The preparation stage was done by mixing the PVA, GA in a volume ratio of 1: 1 and PVA, GA, and Alginate in the ratio of volume 1: 1: 1 which is then printed and dried. Washing the membrane using Aqua-DM with a volume of 400 mL. The morphology of membrane hydrogel was determined by Scaninng Electron Microscope (SEM) and functional group characterized by using Fourier Transform Infra Red (FTIR). The permeation test was carried out by placing 2 mL of 1.0 M KCl solution on a desorption tube coated with a sheet of hydrogel membrane that have been dried. SEM analysis shows that gradual washing makes the membrane cleaner. The FTIR test result provides information that the crosslinking mechanism is facilitated by the formation of acetal bridge. The KCl permeation test showed that PVA/GA/Alginate hydrogels with different thickness gave the same trendline. The thicker of hydrogel membrane, the lower the rate of permeation of KCl. Keywords: hydrogel membrane, PVA, alginate, thickness, permeation test
| Item Type: | Thesis (S1) |
|---|---|
| Additional Information: | No Panggil : S KIM JEL k-2019; Pembimibng : I. Hendrawan, II. Fitri Khoirunnisa; NIM : 1503881 |
| Uncontrolled Keywords: | membran hidrogel, PVA, alginat, ketebalan, uji permeasi |
| Subjects: | L Education > L Education (General) Q Science > QD Chemistry |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Jurusan Pendidikan Kimia > Program Studi Kimia (non kependidikan) |
| Depositing User: | Jelita Indrianti |
| Date Deposited: | 16 May 2020 14:43 |
| Last Modified: | 16 May 2020 14:43 |
| URI: | http://repository.upi.edu/id/eprint/41850 |
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