Putri, Okta Nirmala (2022) Analisis Pengaruh Penambahan 3-Aminopropyltriethoxysilane Pada Plla/Nano-Hidroksiapatit Terhadap Sifat Mekanik, Morfologi, Dan Biodegradasi Bone Screw. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Biodegradable bone screw merupakan komponen dasar pada fiksasi tulang internal modern yang berfungsi untuk menyelaraskan fragmen tulang sepanjang penyembuhan. Material biodegradable bone screw yang banyak digunakan saat ini yaitu material komposit yang terdiri dari dua material berbeda dan pada penelitian ini memanfaatkan PLLA sebagai biopolimer dan nano-HAp sebagai biokeramik yang akan dimodifikasi menggunakan silane coupling agent 3-aminopropyltriethoxysilane (APTES). Variabel yang digunakan yaitu rasio komposisi PLLA/nHAp sebesar 70:30, 80:20, 90:10 serta penambahan silane coupling agent dengan tanpa silane coupling agent serta variasi 1, 3, dan 5%. Penelitian ini menunjukkan bahwa dengan bertambahnya persentase coupling agent dan berkurangnya komposisi nHAp dapat memperbaiki ikatan antara filler dan matriks komposit, meningkatkan sifat mekanik, dan memperlambat degradation time. Penambahan 5% APTES dan perbandingan PLLA/nHAp 90:10 merupakan variasi yang mendekati kriteria pengganti tulang dengan nilai kuat tekan 47,73 MPa, kuat tarik 8,03 MPa, dan degradation time selama 36,8 bulan serta degradation rate .
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Biodegradable bone screw is a basic component in modern internal bone fixation which serves to align bone fragments during healing. The biodegradable bone screw material that is widely used today is a composite material consisting of two different materials and in this study using PLLA as a biopolymer and nano-HAp as a bioceramic which will be modified using a silane coupling agent 3-aminopropyltriethoxysilane (APTES). The variables used were the PLLA/nHAp composition ratio of 70:30, 80:20, 90:10 and the addition of a silane coupling agent with no silane coupling agent and variations of 1, 3, and 5%. This study shows that increasing the percentage of coupling agent and decreasing the nHAp composition can improve the bond between filler and composite matrix, improve mechanical properties, and slow down the degradation time. The addition of 5% APTES and the PLLA/nHAp ratio of 90:10 is a variation that is close to the criteria for bone replacement with a compressive strength value of 47.73 MPa, tensile strength of 8.03 MPa, and a degradation time of 36.8 months.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | 3-aminopropyltriethoxysilane, Bone Screw, Nano-Hidroksiapatit, PLLA |
| 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: | Okta Nirmala Putri |
| Date Deposited: | 04 Feb 2022 02:31 |
| Last Modified: | 04 Feb 2022 02:31 |
| URI: | http://repository.its.ac.id/id/eprint/92786 |
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