Andaru, Ardya Adhityameidy (2017) Pengaruh Komposisi Epoksi Terhadap Sifat Mekanik dan Sifat Termal Pada Komposit Serat Kaca/Vinyl Ester/Epoksi Sebagai Kandidat Material Anti Peluru (Body Armor). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini dilakukan untuk menganalisa sifat mekanik dan sifat termal sebagai kandidat material Body Armor. Material yang dibuat adalah komposit berbasis serat kaca/vinil ester/epoksi dengan variasi penambahan epoksi dalam persen berat. Pengujian yang dilakukan pada penelitian ini antara lain Scanning Electron Microscope (SEM), Fourier Transfromation Infrared Spectroscopy (FTIR), Thermogravimetry Analysis (TGA), Uji tarik, Uji kekerasan, uji densitas dan uji impak. Pada pengujian FTIR, terdapat gugus benzena C=C pada daerah serapan 1506,19 cm-1, gugus alkohol C-OH dan gugus C-O pada daerah serapan 1034,42 cm-1 dan 1179,91 cm-1 dan gugus C=O pada daerah serapan 3448,49 cm-1 yang menunjukkan material tersebut adalah vinil ester. Uji kekerasan pada komposit menunjukkan jika terjadi penurunan nilai kekerasan seiring dengan penamabahan epoksi pada komposit dengan nilai tertinggi pada penambahan 0% epoksi sebesar 84 HD. Pada pengujian tarik juga menunjukkan penurunan nilai kekuatan tarik seiring penambahan epoksi, namun didapatkan nilai optimum pada penambahan 20% epoksi dengan nilai kekuatan tarik 514,9 MPa. Nilai elongasi dan nilai kekuatan impak memiliki nilai optimum pada penambahan 40% epoksi dengan masing masing nilai elongasi dan kekuatan impak adalah 30,8% dan 37,87 J/cm2. Sedangkan secara morcara morfologi, penambahan epoksi pada komposit, meningkatkan interface yang terbentuk antara serat dan matriks. Serta dengan menggunakan gambar SEM, diperoleh nilai rata-rata ukuran serat kaca sebesar 16,19 mikrometer. Dari pengujian stabilitas termal dengan TGA, Nilai T5 tertinggi berada pada penambahan 0% epoksi dengan temperatur 392,5 derajat Celcius.
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This research is conducted to analyze mechanical behavior and thermal behavior in terms to search a candidate material for body armor. Materials which was synthesized were composite of fiberglass/vinyl ester/epoxy with adding variation of epoxy in mass percentage. Experiment that have been done in this research are Scanning Electron Microscope (SEM), Fourier Transformation Infrared Spectroscopy (FTIR), Thermo-gravimetry Analysis (TGA), density test, tensile test, impact test, and hardness test. Upon FTIR test, bond of C=C benzene in peak of 1506,19 cm-1, alcohol bond C-OH and C-O bonds have been seen in peak 1034,42 cm-1 and 1179,91 cm-1. C=O bonds also have been seen in peak of 3448,49 cm-1 , which all of them determine that the material are matrix of vinyl ester based. Hardness test employs result which have decreasing trend upon epoxy addition with highest value seen in no addition of epoxy in matrix, which has 84 HD. Upon tensile test result, the optimum value in tensile strength seen in 20% epoxy addition which value is 514,9 MPa and had optimum value of elongation in 40% epoxy addition which values 30,8%. Impact Test shows result the optimum value of impact strength shown in 40% epoxy addition which valued 37,87 J/cm2. Upon morphology of composite, addition of epoxy increase the interface created between fiber and matrix. Average glass fiber diameter used in composite are 16,19 micrometer. Highest value of T5 shown on 0% epoxy addition which is 392,5 degree Celcius by TGA test result.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.118 And p |
| Uncontrolled Keywords: | Vinyl Ester, Epoksi, Body Armor, Sifat Mekanik, Sifat Termal, Composition, Vinyl Ester, Epoxy, Mechanical Behavior, Thermal Behavior |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. U Military Science > U Military Science (General) |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Ardya Adhityameidy Andaru |
| Date Deposited: | 07 Nov 2017 04:16 |
| Last Modified: | 06 Mar 2019 04:26 |
| URI: | http://repository.its.ac.id/id/eprint/44169 |
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