PENGARUH VARIASI KOMPOSISI KOMPOSIT ECENG GONDOK, SERBUK KAYU JATI, SERAT BATANG PISANG KEPOK DAN RESIN POLIESTER TERHADAP SIFAT KEKERASAN DAN KEAUSAN SEBAGAI MATERIAL KAMPAS REM

GALIH SETYAWAN, . (2026) PENGARUH VARIASI KOMPOSISI KOMPOSIT ECENG GONDOK, SERBUK KAYU JATI, SERAT BATANG PISANG KEPOK DAN RESIN POLIESTER TERHADAP SIFAT KEKERASAN DAN KEAUSAN SEBAGAI MATERIAL KAMPAS REM. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

Penggunaan kampas rem berbahan asbestos masih banyak dijumpai karena memiliki biaya yang relatif murah dan karakteristik mekanik yang baik. Namun, material ini berpotensi menimbulkan dampak negatif terhadap kesehatan dan lingkungan. Oleh karena itu, diperlukan pengembangan kampas rem ramah lingkungan berbasis komposit serat alam. Penelitian ini bertujuan membuat komposit kampas rem berbahan serbuk eceng gondok, serbuk kayu jati, dan serat batang pisang kepok sebagai pengganti asbestos, menganalisis pengaruh variasi komposisi filler terhadap nilai kekerasan dan laju keausan, serta menentukan komposisi terbaik. Penelitian ini menggunakan metode eksperimen dengan matriks resin poliester 50% dan tiga variasi komposisi filler, yaitu spesimen A (10% serbuk kayu jati, 10% serbuk eceng gondok, 30% serat batang pisang kepok), spesimen B (10% serbuk kayu jati, 20% serbuk eceng gondok, 20% serat batang pisang kepok), dan spesimen C (10% serbuk kayu jati, 30% serbuk eceng gondok, 10% serat batang pisang kepok). Serat batang pisang kepok diberi perlakuan asap cair selama 1 jam. Pengujian kekerasan dilakukan menggunakan metode shore D berdasarkan ASTM D2240, sedangkan pengujian keausan menggunakan metode ogoshi berdasarkan ASTM G99. Hasil penelitian menunjukkan bahwa variasi komposisi filler memengaruhi nilai kekerasan dan laju keausan komposit. Nilai kekerasan spesimen A, B, dan C berturut-turut sebesar 46,9 HD, 49,1 HD, dan 46,6 HD. Nilai laju keausan spesimen A, B dan C berturut-turut sebesar 1,457×10⁻⁵, 7,257×10⁻⁶, dan 1,94×10⁻⁵ mm²/kg. Spesimen B paling mendekati standar SAE J661 pada kekerasan, sedangkan spesimen C pada keausan.*****The use of asbestos-based brake pads is still widely found due to their relatively low cost and good mechanical properties. However, this material has the potential to cause negative impacts on human health and the environment. Therefore, the development of environmentally friendly brake pads based on natural fiber composites is required. This study aims to fabricate brake pad composites made from water hyacinth powder, teak wood powder, and banana stem fiber as asbestos substitutes, to analyze the effect of filler composition variations on hardness and wear rate, and to determine the optimum composition. This research employed an experimental method using a polyester resin matrix of 50% and three filler composition variations, namely specimen A (10% teak wood powder, 10% water hyacinth powder, 30% banana stem fiber), specimen B (10% teak wood powder, 20% water hyacinth powder, 20% banana stem fiber), and specimen C (10% teak wood powder, 30% water hyacinth powder, 10% banana stem fiber). The banana stem fiber was treated with liquid smoke immersion for 1 hour prior to fabrication. Specimens were produced using the compression molding method. Hardness testing was carried out using the shore D method based on ASTM D2240, while wear testing was conducted using the ogoshi method based on ASTM G99. The results showed that the filler composition significantly influenced the hardness and wear rate of the composite. The hardness values of specimens A, B, and C were 46.9 HD, 49.1 HD, and 46.6 HD, respectively. Meanwhile, the wear rates of specimens A, B, and C were 1.457 × 10⁻⁵, 7.257 × 10⁻⁶, and 1.94 × 10⁻⁵ mm²/kg, respectively. Specimen B most closely approaches the SAE J661 standard in terms of hardness, whereas Specimen C most closely approaches the standard in terms of wear resistance.

Item Type:	Thesis (Sarjana)
Additional Information:	1). Dr. Ferry Budhi Susetyo, M.T., M.Si. ; 2). Rani Anggrainy, S.Pd., M.T.
Subjects:	Teknologi dan Ilmu Terapan > Teknik Pertambangan, Metalurgi Teknologi dan Ilmu Terapan > Manufaktur
Divisions:	FT > D IV Teknologi Rekayasa Manufaktur
Depositing User:	Galih Setyawan .
Date Deposited:	05 Aug 2026 06:27
Last Modified:	05 Aug 2026 06:27
URI:	http://repository.unj.ac.id/id/eprint/68573

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