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All Journal Jurnal Bahan Alam Terbarukan Majalah Ilmiah MOMENTUM Automotive Experiences jes
Siregar, Januar Parlaungan
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering

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Characteristics of Natural Fiber Composites Materials Reinforced with Aluminum and Copper Powder for The Performance of Automatic Motorcycle Clutch Pad Riyadi, Riyadi; Kholil, Ahmad; Siregar, Januar Parlaungan; Dwiyati, Siska Titik; Pratama, Danang Budi; Setiawan, Ari; Syaefudin, Eko Arif
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.8878

Abstract

Currently, research on natural fiber composites (NFC) for automotive applications has attracted the attention of researchers and academics. Natural fibers such as coconut fiber and wood powder are mixed with metal materials such as aluminum and copper to obtain the composite characteristics of automatic motorcycle clutch pad materials. Coconut fiber and wood powder are suitable natural materials for composites and are easily obtained from waste. Natural fiber materials with metal reinforcement into composites are expected to produce materials suitable for friction materials such as clutch pads and brake pads with a good characteristic. This study aims to determine the characteristics of the coefficient of friction, wear, and hardness of NFC materials reinforced aluminum and copper powder for the performance of automatic motorcycle clutch pads. Experiments were carried out on various compositions of aluminum and copper powder. Tribometer testing was carried out to determine the friction coefficient and wear. Hardness testing using the Vickers method and testing the performance of automatic motorbikes with a chassis dyno test. The results show that the performances of the clutch pad with NFC-reinforced aluminum and copper show power and torque results that resemble the performances of genuine part materials in each operating cycle. The value of friction coefficient, wear, and hardness of this material are a value close to that of a genuine part clutch pad material. The improved performance of this material is expected to be considered in the manufacture of future clutch pads.
A Study on Characteristics of Brake Pad Composite Materials by Varying the Composition of Epoxy, Rice Husk, Al2O3, and Fe2O3 Khafidh, Muhammad; Putera, Finny Pratama; Yotenka, Rahmadi; Fitriyana, Deni Fajar; Widodo, Rahmat Doni; Ismail, Rifky; Irawan, Agustinus Purna; Cionita, Tezara; Siregar, Januar Parlaungan; Ismail, Nur Hidayah
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9121

Abstract

The use of composite materials in brake pads is becoming increasingly popular due to their high-performance characteristics, including good thermal stability, high wear resistance, and low noise generation. However, the development of new composite materials that offer even better performance is still an ongoing research area. In this study, the composite was made by hand layup method using epoxy resin as matrix material, with rice husk, Al2O3, and Fe2O3 as reinforcing materials. The composition of the composites was varied by changing the percentage of the reinforcement materials. The composites were then subjected to several characterization tests, including density, hardness, flexural strength, thermal analysis, Scanning Electron Microscopy (SEM), TGA/DSC, and wear testing. The test results showed that additional reinforcement materials to the epoxy resin matrix improved the mechanical properties of the composites. Overall, the study demonstrates that a hand layup method is a viable approach for preparing brake pad composite materials and that the addition of rice husk, Al2O3, and Fe2O3 can improve the mechanical properties of the composites. The best properties produced in this research were found in one of the specimens which used epoxy, rice husk, Al2O3, and Fe2O3 with a composition of 50 wt.%, 20 wt.%, 15 wt.%, and 15 wt.%. However, the addition of rice husk also provides wear resistance and thermal stability. This study contributes to the Sustainable Development Goals (SDGs) by advancing innovation, promoting sustainability, and reducing emissions in automotive industry applications.
Formulation and Evaluation of Face Moisturizing Cream from Katuk Leaf Extract (Sauropus Androgynus Merr) Siallagan, Johnson; Kano, Christina Paulina; Yabansabra, Yuliana Ruth; Pramesti, Santinia Andiva; Fitriyana, Deni Fajar; Siregar, Januar Parlaungan; Cionita, Tezara; Guterres, Natalino Fonseca Da Silva
Jurnal Bahan Alam Terbarukan Vol 13, No 1 (2024): June 2024 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v13i1.50297

Abstract

The Katuk plant (Sauropus androgynus L. Merr) is a natural substance with proven efficacy in treating diabetes, obesity, and inflammation. It also possesses antioxidant, lactation-inducing, and antibacterial properties. This study aimed to investigate the impact of varying concentrations of katuk leaf extract on characteristics of the moisturizer cream produced. The study involved extracting katuk leaves using the maceration method for 24 hours, utilizing ethanol as the solvent. The extraction process resulted in a yield of 1.86%. The final yield contains alkaloid chemicals, flavonoids, terpenoids, saponins, and tannins. The formulations employed in this investigation utilized the codes F0, F1, F2, and F3, representing the content of katuk leaf extract at 0%, 2%, 4%, and 6%, respectively. The cream generated exhibited an identifiable aroma of katuk and had a hue ranging from light green to blackish brown, as determined by organoleptic testing. The pH values of specimens F0, F1, F2, and F3 were 7, 7, 7, and 8, respectively. The spread ability measurements for specimens F0, F1, F2, and F3 were 5.3 cm, 5.5 cm, 6 cm, and 6.1 cm, respectively. According to the findings of this investigation, specimens F0, F1, F2, and F3 adhered for 5 seconds, 4 seconds, 4 seconds, and 5 seconds, respectively. The formulation F2 is the most superior product generated in this investigation. This is because this specimen exhibits the highest level of respondent satisfaction compared to the other specimens. This formulation exhibits antioxidant activity with a per cent inhibition of 30.51% and an IC50 value of 84.63 ppm. The face moisturizing cream derived from katuk leaf extract possesses a high antioxidant potency, placing it in the active/strong category.
Pengaruh Fraksi Volume Sekam Padi, Aluminium Oksida dan Besi Oksida Terhadap Sifat Mekanik Kampas Rem dengan Matriks Epoxy Fitriyana, Deni Fajar; Widodo, Rahmat Doni; Kriswanto, Kriswanto; Athoillah, Ahmad; Prasetyo, Ares Yudi; Alrasyid, Mochamad Dzaki; Aripin, Muhammad Bustanul; Dimyati, Saeful; Irawan, Agustinus Purna; Cionita, Tezara; Siregar, Januar Parlaungan
JURNAL ILMIAH MOMENTUM Vol 19, No 2 (2023)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v19i2.8752

Abstract

Penelitian tentang material alam sebagai pengganti material asbes dalam komposit material gesek kampas rem motor terus mengalami peningkatan. Material dalam kategori biomassa sebagai reinforcement komposit agar mendapatkan karakteristik material yang sesuai standar material gesek kampas rem motor. Penelitian ini bertujuan untuk mengetahui pengaruh fraksi volume sekam padi, aluminium oksida, dan besi oksida terhadap sifat mekanik dari spesimen komposit material gesek kampas rem. Proses pembuatan spesimen menggunakan metode hand lay-up dengan fraksi volume material epoksi (100 wt% dan 50 wt%), sekam padi (0 wt% dan 20 wt%), aluminium oksida (25 wt% dan 15 wt%), dan besi oksida (25 wt% dan 15 wt%). Pada penelitian ini, didapatkan pengaruh fraksi volume sekam padi, aluminium oksida, dan besi oksida terhadap sifat mekanik dari spesimen komposit material gesek kampas rem motor yaitu dapat meningkatkan nilai dari masing-masing hasil pengujian. Sehingga, dapat disimpulkan bahwa penggunaan material epoksi 50 wt%, sekam padi 20 wt%, aluminium oksida 15 wt%, dan besi oksida 15 wt% membuat ikatan antar partikel spesimen komposit material gesek kampas rem motor semakin baik dikarenakan kandungan silikanya yang tinggi. Oleh karena itu, didapatkan spesimen komposit material gesek kampas rem sepeda motor dengan sifat mekanik yang baik sesuai standar SNI nomor 09-0143-1987 dan SAE J661-1997.
Effect of Firring Heating Rate on the Density, Porosity, Vickers Hardness and Microstructure of the Crucible Specimens Rusiyanto, R.; Meiartha, REGA; Fitriyana, Deni Fajar; Sudiyono, S.; setiadi, rizki; Siregar, Januar Parlaungan; Ansori, CHUSNI
JURNAL ILMIAH MOMENTUM Vol 20, No 1 (2024)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i1.10306

Abstract

Failure in the results of making the crucible is cracking and even deformation. Cracks that occur can cause fluid leakage when melting so that it disrupts the casting process. The quality of the crucible can be influenced by factors including the selection of constituent materials, particle size, the amount of pressure, and the length of the firring process of heat treatment and cooling in the furnace. This study aims to determine the effect of heating rate on crucible made from clay and kaolin and molasses as a binder. With the treatment of different heating rates in the firring process, namely 3 ℃ / min, 4 ℃ / min, 5 ℃ / min, 6 ℃ / min, and 7 ℃ / min.  The composition of the materials used is 40% clay, 40% kaolin, and 5% molasses and 15% water as the total mass. The process of making specimens begins with crushing clay, sieving clay 100 mesh. Mixing process using twin screw extruder machine repeatedly for 45 minutes. Molded cylindrical size 20 x 20 mm, free air drying for 8 days, firring process at 1000 ℃ holding time 1 hour. The results showed that the difference in heating rate did not affect the change in chemical elements but the best heating rate was at 3℃/min showing a denser morphology, density value of 1.62 g/cm3, porosity value of 23%, and Vickers hardness value of 20.43 HVN.
Effect of Maleic Anhydride Polypropylene on Flexural Properties of Hybrid Kenaf - Sugar Palm Fibre Reinforced Polypropylene Composites Bachtiar, Dandi; Siregar, Januar Parlaungan; Iqbal, Mohd; Masri; Zulfadhli; Muhibbuddin
Journal of Engineering and Science Vol. 2 No. 2 (2023): July-December 2023
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v2i2.169

Abstract

This study was focused on the characterize the hibridisation of kenaf and sugar palm fibre in reinforcing the polypropylene matrix. Addition of MAPP (Maleic Anhydride Polypropylene) was used as compatibilizing agent with variation of 2%, 3% and 5%. The specimen materials were prepared with 30% amounts of fibres while the ratios between kenaf and sugar palm fibre are 10:20, 15:15 and 20:10. The composites were fabricated using melt mixer technique and followed by compression molding process. The specimens were cut according ASTM Standard D790 for conducting the flexural testing. After testing done, the results shown that flexural strength of composites tend to decreased when the content of MAPP increased. The ultimate flexural strength was attained at 2% MAPP addition of the hybrid composites with 20% kenaf fibres. Among the composites with different ratios, the hybrid composites that contain more kenaf fibres exhibit the higher value in flexural strength than the composites that contain more sugar palm fibres.
Fatigue Analysis on Hybrid Sugar Palm-Kenaf Fibre Reinforced Polypropylene Composites Bachtiar, Dandi; Siregar, Januar Parlaungan; Zulfadhli; Masri; Arhami; Siregar, Ramdhan Halid; Jalil, Saifuddin Muhammad
Journal of Engineering and Science Vol. 3 No. 1 (2024): January-June 2024
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v3i1.209

Abstract

ABSTRACT Hybrid natural-natural fibre reinforced polymer composites become attractive alternative to seek the friendly-environmentally materials. Study on the durability level of the hybrid composites have the importance reason due to the role in application as structural function. This study focuses on examining the fatigue strength of polypropylene polymer composites reinforced with hybrid sugar palm-kenaf fibres. The hybrid composite materials were prepared by mixing the fibres and matrix with several compositions. There are five composition types of specimens that evaluated, such as 70:10:10, 70:15:15, 70:20:10, 80:10:10 and 90:5:5. The hybrid composites were composed by PP, sugar palm fibre and kenaf fibre. Furtheremore the tensile test were conducted to find the value of ultimate tensile strength for every specimens of hybrid composites. The fatigue test also were conducted with four level of stress i.e. 80%, 70%, 60% and 50%. The results show that in the lower level of stress, the hybrid composites with higher content of sugar palm fibre posses the better performance of fatigue life compare to the others
Co-Authors Agustinus Purna Irawan Ahmad Athoillah Ahmad Kholil Alrasyid, Mochamad Dzaki ARHAMI Ari Setiawan Aripin, Muhammad Bustanul Bachtiar, Dandi Chusni Ansori Cionita, Tezara Dimyati, Saeful Dwiyati, Siska Titik Fitriyana, Deni Fajar Gunawan Refiadi, Gunawan Guterres, Natalino Fonseca Da Silva Iis Siti Aisyah Iqbal, Mohd Ismail, Nur Hidayah Jalil, Saifuddin Muhammad JOHNSON SIALLAGAN Kano, Christina Paulina Kriswanto Kriswanto, Kriswanto Masri Meiartha, REGA Muhammad Khafidh Muhibbuddin Pramesti, Santinia Andiva Prasetyo, Ares Yudi Pratama, Danang Budi Putera, Finny Pratama Rifky Ismail Riyadi Riyadi Rusiyanto, R. Setiadi, Rizki Siregar, Ramdhan Halid Sudiyono, S. Syaefudin, Eko Arif Yabansabra, Yuliana Ruth Yotenka, Rahmadi Zulfadhli