Analisis Pengaruh Penambahan Vinylsilane Pada Poly(L-Lactic Acid)/Nano-Hidroksiapatit Terhadap Sifat Mekanik, Morfologi, dan Biodegradasi Screw

Syaadah, Silvia Mutimmatus (2022) Analisis Pengaruh Penambahan Vinylsilane Pada Poly(L-Lactic Acid)/Nano-Hidroksiapatit Terhadap Sifat Mekanik, Morfologi, dan Biodegradasi Screw. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kerusakan tulang akan berakibat fatal untuk fungsi tubuh. Kerusakan tulang dapat diperbaiki salah satunya dengan pengaplikasian bone screw. Bone screw digunakan untuk menyelaraskan dan menstabilkan fragmen tulang sepanjang penyembuhan. Bone screw terbuat dari material komposit yang tersusun dari biopolimer dan biokeramik. Penelitian ini memanfaatkan PLLA dan nano-HAp yang akan dimodifikasi menggunakan coupling agents vinylsilanes. Variasi vinylsilane yang dilakukan yaitu 0% sebagai material kontrol, 1, 3 dan 5%. Kemudian ditambahkan nHAp dengan rasio PLLA/nano-HAp sebesar 70:30, 80:20 dan 90:10. Dari hasil penelitian menunjukkan bahwa penambahan coupling agents vinylsilane dan pengurangan variasi campuran HAp dapat meningkatkan dan memperbaiki sifat mekanik dan morfologi spesimen serta menurunkan laju degradasi sehingga memperlambat degradation time. Variasi penambahan 5%vinylsilane dan komposisi PLLA/nano-HAp 90:10 merupakan variasi spesimen yang mendekati kriteria pengganti tulang, dengan tensile strength sebesar 6.86 MPa, compressive strength sebesar 30.62 MPa, serta degradation time selama 31.7 bulan.
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Fracture will be reduce body function. One of the ways to repair fracture is by applying a bone screw. A Bone screw is used to align and stabilize bone fragments throughout healing. The constituent materials use composite materials composed of biopolymers and bioceramics. This research utilizes PLLA and nano-HAp which will be modified using a coupling agents vinylsilane. Vinylsilane variation are 0% as control material, 1%, 3% and 5%. Then added nano-Hap with ratio of PLLA/nHAp of 70:30, 80:20, and 90:10. The results showed that the addition of vinylsilane coupling agents and reduction of the HAp mixture could increase and improve the mechanical and morphological properties of the specimen and reduce the rate of degradation thereby slowing down the degradation time. Variations in addition of 5% vinylsilane and the composition of PLLA/nano-HAp 90:10 that are close to the criteria for bone replacement, with tensile strength of 6.86 MPa, compressive strength of 30.62 MPa, and degradation time of 31.7 months.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Bone, Bone screw, PLLA, nano-HAp, Vinylsilanes
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Silvia Mutimmatus Syaadah
Date Deposited:	04 Feb 2022 03:32
Last Modified:	18 Jul 2024 07:53
URI:	http://repository.its.ac.id/id/eprint/92783

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