OKTAVIANI, ZAHRA (2026) KARAKTERISASI PERMUKAAN DAN EVALUASI PERILAKU KOROSI LOGAM MAGNESIUM HASIL MODIFIKASI DALAM LARUTAN NACL 0,9%, DMEM, DAN BSA UNTUK APLIKASI IMPLAN MEDIS. S1 thesis, FAKULTAS TEKNIK UNIVERSITAS SULTAN AGENG TIRTAYASA.
![[img]](https://eprints.untirta.ac.id/style/images/fileicons/text.png) |
Text (Fulltext)
Zahra Oktaviani_3334210100_Fulltext.pdf Restricted to Registered users only until 20 January 2036. Download (6MB) |
|
Text (BAB I)
Zahra Oktaviani_3334210100_01.pdf Restricted to Registered users only until 20 January 2026. Download (1MB) |
|
Text (BAB II)
Zahra Oktaviani_3334210100_02.pdf Restricted to Registered users only until 20 January 2036. Download (550kB) |
|
Text (BAB III)
Zahra Oktaviani_3334210100_03.pdf Restricted to Registered users only until 20 January 2036. Download (553kB) |
|
Text (BAB IV)
Zahra Oktaviani_3334210100_04.pdf Restricted to Registered users only until 20 January 2036. Download (3MB) |
|
Text (BAB V)
Zahra Oktaviani_3334210100_05.pdf Restricted to Registered users only until 20 January 2036. Download (29kB) |
|
Text (DAFTAR PUSTAKA)
Zahra Oktaviani_3334210100_Ref.pdf Restricted to Registered users only until 20 January 2036. Download (179kB) |
|
Text (LAMPIRAN)
Zahra Oktaviani_3334210100_Lamp.pdf Restricted to Registered users only until 20 January 2036. Download (987kB) |
|
Text (PLAGIARISME)
Zahra Oktaviani_3334210100_CP.pdf Restricted to Registered users only until 20 January 2036. Download (30MB) |
Abstract
Biodegradable materials are increasingly being developed as implant materials due to their ability to degrade in a controlled manner within the body. These materials include metals, polymers, and ceramics, with magnesium being one of the most widely studied metals. Magnesium has mechanical properties similar to bone and is bidoegradable. However, its high corrosion rate and hydrogen gas limit its use as an implant. To address this, magnesium was surface modified by coating using the dip coating method with a combination of cerium oxide (CeO2) and polyvinylpyrrolidone (PVP) materials. This study aims to characterize the surface of CeO2 and PVP-coated magnesium metal and evaluate the effect of CeO2 mass variation (0.5; 1; 1.5 g) and the number of coating repetitions (1 and 2 times) on corrosion resistance and surface wettability in simulated body fluid. The research methods included the preparation of 99.9% magnesium samples through cutting, grinding, and polishing, followed by the coating process. Characterization was performed using SEM-EDS morphology and cross-section, XPS, electrochemical testing, and contact angle testing in 0.9% NaCl, DMEM, and BSA solutions. The results showed that increasing the CeO2 mass and the number of coating repetitions effectively reduced the corrosion rate, eith the corrosion rate in the BSA medium varying with a CeO2 mass of 1.5 g and 2x immersion. Contact angle testing indicated an increase in hydrophilicity in 0.9% NaCl, DMEM, and BSA media with variations of 1.5 g and 2x immersion. Specifically, the BSA solution produced the most optimal decrease in contact angle. These findings suggest that optimizing CeO2 mass and coating repetitions can enhance magnesium’s performance as a biodegradable implant material by reducing corrosion and improving surface wettability, which are important factors for implant integration and biocompatibility.
| Item Type: | Thesis (S1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
|||||||||
| Additional Information: | Material biodegradable semakin banyak dikembangkan sebagai bahan implan karena kemampuannya terdegradasi secara terkendali dalam tubuh. Material tersebut berupa logam, polimer, dan keramik, dengan logam magnesium salah satu yang paling banyak dikaji. Magnesium memiliki sifat mekanik yang serupa dengan tulang dan bersifat biodegradable. Namun, laju korosi yang tinggi serta produksi gas hidrogen menjadi keterbatasan dalam penggunaannya sebagai implan. Dalam mengatasi hal ini, magnesium dilakukan modifikasi permukaan dengan pelapisan menggunakan metode dip coating dengan kombinasi material cerium oksida (CeO2) dan polyvinylpyrrolidone (PVP). Penelitian ini bertujuan untuk melakukan karakterisasi permukaan logam magnesium berlapis CeO2 dan PVP, serta mengevaluasi pengaruh variasi massa CeO2 (0,5; 1; 1,5 g) dan jumlah pengulangan lapisan (1 dan 2 kali) terhadap ketahanan korosi dan sifat wettability permukaan dalam larutan simulasi tubuh. Metode penelitian meliputi preparasi sampel magnesium 99,9% melalui pemotongan, grinding, dan polishing, dilanjutkan proses coating. Karakterisasi dilakukan dengan SEM-EDS morfologi dan cross section, XPS, pengujian elektrokimia dan sudut kontak pada larutan NaCl 0,9%, DMEM, dan BSA. Hasil penelitian menunjukkan bahwa peningkatan massa CeO2 dan jumlah pengulangan lapisan efektif menurunkan laju korosi, dengan laju korosi pada media BSA variasi massa CeO2 1,5 g dan 2x pencelupan. Pengujian sudut kontak mengindikasikan peningkatan hidrofilisitas pada media NaCl, DMEM, dan BSA dengan variasi 1,5 g dan 2x pencelupan. Khususnya pada larutan BSA menghasilkan penurunan sudut kontak paling optimal. | |||||||||
| Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
|||||||||
| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 27201-Jurusan Teknik Metalurgi |
|||||||||
| Depositing User: | Zahra z Oktaviani | |||||||||
| Date Deposited: | 02 Jan 2026 07:09 | |||||||||
| Last Modified: | 02 Jan 2026 07:09 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/56969 |
Actions (login required)
 |
View Item |