Syahputra, Renal Bayu Eka Syahputra (2025) PENGARUH PERLAKUAN SERAT DAN VOLUME FRAKSI SERAT SISAL (AGAVE SISALANA) TERHADAP KEKUATAN TARIK PADA KOMPOSIT RESIN EPOXY MENGGUNAKAN METODE VARI DENGAN PENGUAT SERAT SISAL. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Industri perkuatan struktur menghadapi tantangan besar terkait konsep bangunan hijau (green building) yang mengutamakan aspek konstruksi, desain, dan operasi berbasis lingkungan demi keamanan alam. Salah satu solusi inovatif adalah penggunaan serat sisal (Agave sisalana) sebagai penguat komposit resin epoxy. Serat sisal yang kaya selulosa dapat ditingkatkan kualitasnya melalui perlakuan alkali menggunakan larutan NaOH, yang menghilangkan hemiselulosa dan lignin, sehingga memengaruhi kekuatan mekaniknya. Penelitian ini menggunakan metode Vacuum Assisted Resin Infusion (VARI) untuk memproduksi spesimen komposit dengan variasi perlakuan serat dan fraksi volume serat. Variasi meliputi perlakuan NaOH 5% dan perendaman menggunakan air PDAM selama 1 dan 2 jam dengan fraksi volume serat sebesar 15% dan 20%. Hasil pengujian menunjukkan kekuatan tarik tertinggi sebesar 45,2 MPa pada variasi perendaman alkali NaOH selama 2 jam dengan fraksi volume serat 20%. Uji porositas mengungkapkan nilai tertinggi sebesar 15,11% pada perlakuan serat alkali 20% dan nilai terendah sebesar 8,21% pada perlakuan air PDAM 15%. Pengujian SEM (Scanning Electron Microscope) menunjukkan bahwa perendaman alkali selama 2 jam meningkatkan integrasi antara serat dan resin, sehingga memperkuat sifat mekanis komposit. Penelitian ini membuktikan bahwa variasi perlakuan dan fraksi volume pada potensi serat sisal sebagai penguat alami yang ramah lingkungan untuk material komposit.
| Item Type: | Thesis (Undergraduate) |
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| Uncontrolled Keywords: | Epoxy, fraksi volume, kekuatan tarik, perlakuan serat, serat sisal, uji tarik, uji porositas, uji SEM, VARI. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin |
| Depositing User: | 1422000173 Renal Bayu Eka Syahputra |
| Date Deposited: | 15 Jun 2026 07:45 |
| Last Modified: | 15 Jun 2026 07:45 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/37066 |
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