Elektrodeposisi Komposit Hidroksiapatit-Kitosan dari Bahan Lokal pada Baja Tahan Karat SS 304
| Main Authors: | Aulia, Sarah Nasma'ul, Mulyani, R. Henny, Prajitno, Djoko Hadi |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University
, 2019
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| Online Access: |
http://jkk.unjani.ac.id/index.php/jkk/article/view/37 http://jkk.unjani.ac.id/index.php/jkk/article/view/37/21 |
Daftar Isi:
- Pada penelitian kali ini dilakukan untuk mengetahui pengaruh waktu proses dan perbedaan komposisi kitosan pada larutan paduan Hydroxyapatite(HA) terhadap efisiensi berat endapan hasil proses Elektrodeposisi, jumlah sampel yang digunakan ada 9 sampel namun hanya 3 yang dilakukan pengujian karakterisasi yaitu sampel HA+Kitosan 10% (5 jam), HA+Kitosan 20% (1 jam), HA+Kitosan 20% (5 jam), rapat arus yang digunakan selama proses elektrodeposisi sebesar 1,8 A/cm3. Pengujian karakterisasi yang dilakukan meliputi, pengujian X-ray diffraction (XRD), Scanning Electron Microscopy dan (SEM) Simulated Body Fluid (SBF). Penambahan kitosan pada larutan paduan HA sangat berguna untuk meningkatkan daya lekat lapisan endapan pada substrat, karena sifat HA sangat rapuh ketika bersentuhan langsung dengan cairan tubuh manusia karena tingkat stabilitasnya rendah. Di peneltian ini Peak tertinggi pada Pola difraksi x-ray terdapat pada komposit HA+Kitosan 20% (1 jam) yaitu posisi 31,91, dan untuk %berat kandung Kalsium(Ca) pada sampel HA+Kitosan 20% (1 jam) juga tertinggi diantara sampel lain yaitu sebesar 27,03%. Pada hasil uji SBF laju korosi tertinggi ada pada sampel uji HA+Kitosan 10% yakni sebesar 1,076 mpy, sedangkan untuk sampel HA+Kitosan 20% hanya sebesar 0,058 mpy. Kata kunci: elektrodeposisi, hydroxyapatite, kitosan, ultrasonic stirrer, XRD, SEM-EDS, SBF, kalsium
- In this Research to determine the effect of processing time and the difference of the composition of chitosan in Hydroxyapatite (HA) solution to the weight efficiency of the result from the electrodeposition process, it was used 9 samples but only 3 were carried out into characterization testing they’re HA + Chitosan 10% sample (5 hours), HA + Chitosan 20% (1 hour), HA + Chitosan 20% (5 hours), the current density used during the electrodeposition process is 1.8 A / cm3. The process of stirring with an ultrasonic stirrer is important, so that the colloidal powder contained in the electrolyte solution becomes homogeneous. Characterization tests include X-ray Diffraction (XRD) testing, scanning Electron Microscopy (SEM) and Simulated Body Fluid (SBF). The addition of chitosan to HA alloy solutions is very useful to increase the stickiness of the sediment layer on the substrate, because the properties of HA is very fragile when in direct contact with human body fluids its because of the low level of stability. In this study the highest peak on the X-Ray Diffraction pattern was found in the composite HA + Chitosan 20% (1 hour), which is the position 31.91, and for the% weight of calcium (Ca) in the HA + Chitosan sample 20% (1 hour) also the highest among other samples was 27.03%. From the SBF test results, the highest corrosion rate in the HA + Chitosan 10% sample is 1.076 mpy, while for the HA + Chitosan sample 20% is only 0.058 mpy. Keywords: Electrodeposition, Hydroxyapatite, Chitosan, Ultrasonic Stirrer, XRD, SEM-EDS, SBF, Calsium