Putra, Rangga (2026) Analisa Pengaruh Perendaman Limbah Serat Rambut Manusia Menggunakan Larutan KOH (Kalium Hidroksida) Terhadap Kekuatan Tarik Dan Kekuatan Impact. Undergraduate thesis, Politeknik Negeri Jember.
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Abstract
This study aims to analyze the effect of soaking human hair fiber waste in a 5% KOH (Potassium Hydroxide) solution on the tensile and impact strengths of epoxy-matrix composites. Human hair waste is utilized as a reinforcing fiber due to its high keratin content and resistance to decomposition, making it a potential eco-friendly alternative material. An experimental method was employed, featuring variations in soaking time (30 and 60 minutes) and fiber weight fractions (5%, 7.5%, and 10%) using the hand lay-up technique. Tensile testing was conducted in accordance with the ASTM D638 Type I standard, while impact testing followed the ASTM D5942-96 Charpy method. The results indicate that the alkalization treatment and fiber weight fraction variations influenced the composite's mechanical properties; the highest tensile strength (48.62 N/mm²) was achieved with a 60-minute soak and a 7.5% weight fraction, whereas the highest impact strength (0.185 J/mm²) was obtained with a 30-minute soak and a 10% weight fraction. This study demonstrates that KOH treatment enhances fiber-matrix adhesion up to a certain limit, suggesting that human hair waste composites have the potential to be developed as natural fiber-based alternative materials.
| Item Type: | Thesis (Undergraduate) | ||||||
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| Uncontrolled Keywords: | komposit, serat rambut manusia, KOH, alkalisasi, uji tarik, uji impact | ||||||
| Subjects: | 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 431 - Teknik Mesin (dan Ilmu Permesinan Lain) 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 433 - Teknik Kimia 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 442 - Teknik Fisika |
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| Divisions: | Jurusan Teknik > Prodi D4 Mesin Otomotif > Tugas Akhir | ||||||
| Depositing User: | Rangga Destra Pratama Putra | ||||||
| Date Deposited: | 02 Jul 2026 01:14 | ||||||
| Last Modified: | 02 Jul 2026 01:16 | ||||||
| URI: | https://sipora.polije.ac.id/id/eprint/57205 |
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