Sintesis Dan Karakterisasi Material Biokomposit Polylactic Acid (PLA) Berpenguat Serbuk Tulang Sapi Sebagai Kandidat Bahan Tulang Buatan

Hutajulu, Adven FN (2017) Sintesis Dan Karakterisasi Material Biokomposit Polylactic Acid (PLA) Berpenguat Serbuk Tulang Sapi Sebagai Kandidat Bahan Tulang Buatan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tulang buatan berfungsi sebagai pengganti tulang rusak yang dapat diplantasikan kedalam tubuh tanpa adanya penolakan dari tubuh. Salah satu material yang dapat digunakan dalam aplikasi ini adalah material Polylactic acid (PLA) yang dapat digunakan dengan aplikasi 3D printing. Dalam penelitian ini, PLA as receive (AR) dikompositkan dengan serbuk tulang. Penambahan serbuk tulang sapi pada penelitian ini dibedakan dengan prosentase 10%wt, 20%wt, 30%wt, 40%wt dan 50%wt. Dengan pengujian FTIR, diketahui bahwa tulang sapi dan PLA-AR tidak berikatan secara kimia, sedangkan dengan pengujian XRD, tidak ditemukan fasa baru. Pengujian SEM membuktikan bahwa serbuk tulang tersebar di dalam PLA-AR mengisi pori pori PLA-AR. Dengan pengujian kekerasan, diperoleh hasil bahwa penambahan serbuk tulang menghasilkan nilai kekerasan yang semakin meningkat. Sedangkan dengan pengujian Direct Mechanical Analysis (DMA) diperoleh hasil bahwa nilai kekuatan material menurun seiring dengan penambahan serbuk tulang sapi. Hal ini ditandai dengan penurunan nilai tensile strength. Sedangkan nilai elongation at break berfluktuatif. Pengujian antibakteri dilakukan dengan bakteri gram positif, Bacillus Cereus dan bakteri gram negatif, Escherichia Coli. Dari pengujian ini diketahui bahwa material komposit PLA/tulang sapi tidak memiliki sifat tahan bakteri. ================================================================= Artificial bone serves as a subtitute for damaged bone that can be plantized into human body without any rejection. Polylactic acid (PLA) can be used as a material to produce artificial bone using 3D printing application. In this study, PLA as receive (AR)was composited with bo vine bone powder. The addition of bone powder was distinguished by percentage that ranged as 10%wt, 20%wt, 30%wt, 40%wt, and 50%wt. FTIR analysis showed that bovine bone powder was not chemically bonded with PLA-AR. Whereas XRD analysis proved that there was no new phase exist in the composite material. SEM analysis proved that bovine bone powder was dispersed interstitially inside the pore of PLA-AR. However, the bovine bone powder was agglomerated. Hardness testing proved that the addition of bone powder resulted in the increasing of hardness value. Using Direct Mechanical Testing (DMA) analysis, it was found that the strength of material decreased according to the decreasing of the value of tensile strength while the elongation at break was fluctuated. The material was tested bacteria to show its resistance. It was tested to to positive gram bacteria Bacillus Cereus and negative gram bacteria Eschericia Coli. From this evaluation, it was known that the composite material PLA/Bovine bone powder has no anti-bacteria properties.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.192 3 Hut s
Uncontrolled Keywords: Tulang sapi, Komposit, Polylactic acid (PLA), bone powder, composite
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Adven FN Hutajulu Adven FN Hutajulu
Date Deposited: 29 Nov 2017 02:03
Last Modified: 06 Mar 2019 04:41
URI: http://repository.its.ac.id/id/eprint/44263

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