PUJI LESTARI, TRI WAHYU and BADRIYAH, NAYLA ZULFATUL (2024) PEMBUATAN DAN KARAKTERISASI HIDROGEL BERBASIS Na-CMC TONGKOL JAGUNG DENGAN METODE IKAT SILANG. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.
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Abstract
Hydrogel are macromolecular hydrophilic polymer that have cross linking network. Hydrogel has the ability to absorb and release water content periodically. In this research hydrogel was made using Carboxymethyl Celulose (CMC) and Polivinyl Alcohol (PVA) with citric acid as crosslinking agent. CMC are made from synthesis corncob cellulose, which is known to have high cellulose. The main aim of this research is to determine the effect of citric acid concentration as crosslinking agent on the characteristics of hydrogel. The step of preparation hydrogel are include preparing corn cobs as main material, extracting cellulose from corn cobs, synthesizing CMC, produce hydrogel, and characterization of hydrogel. The optimum result was achieved at citric acid concentration 15%, with a swelling ratio of 3,70 and a gel fraction of 88%. Based on FTIR test results, it shows that the polymer crosslinking process was successful, and hydrogel with a PVA concentration of 15% has a porous surface with a regular structure.
| Item Type: | Thesis (S1) | ||||||
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| Additional Information: | Hidrogel merupakan jenis dari makro molekul polimer hidrofilik yang didalamnya membentuk jaringan ikat silang. Hidrogel memiliki kemampuan untuk menyerap dan melepaskan kandungan air secara berkala. Pada penelitian ini dibuat hidrogel dengan menggunakan campuran Carboxymethyl Celulose (CMC) dan Polivinyl Alcohol (PVA) dengan agen ikat silang yaitu asam sitrat. CMC yang digunakan merupakan hasil sintesis dari selulosa tongkol jagung yang diketahui memiliki selulosa yang melimpah. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi asam sitrat sebagai agen pengikat terhadap karakteristik hidrogel. Tahapan dalam pembuatan hidrogel ini meliputi preparasi bahan berupa tongkol jagung, ekstraksi selulosa dari tongkol jagung, sintesis CMC, pembuatan hidrogel, serta karakterisasi dari hidrogel berbasis selulosa tongkol jagung. Sehingga didapatkan hasil hidrogel terbaik di dapatkan pada saat konsentrasi asam sitrat 15% dengan nilai swelling ratio sebesar 3,70 dan nilai fraksi gel sebesar 88%. Berdasarkan hasil uji FTIR yang dilakukan menunjukkan bahwa proses ikat silang polimer berhasil dilakukan. Serta hidrogel dengan konsentrasi pva 15 % memiliki permukaan berpori pori dengan struktur yang beraturan. | ||||||
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
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| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 24201-Jurusan Teknik Kimia |
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| Depositing User: | puji tri wahyu | ||||||
| Date Deposited: | 06 Nov 2024 08:48 | ||||||
| Last Modified: | 06 Nov 2024 08:48 | ||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/43575 |
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