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All Journal Rotasi JURNAL TEKNIK MESIN Jurnal Simetris Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Bahan Alam Terbarukan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Rekayasa Mesin Majalah Ilmiah MOMENTUM AJIE (Asian Journal of Innovation and Entrepreneurship) Jurnal Rekayasa Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan KACANEGARA Jurnal Pengabdian pada Masyarakat International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Pendidikan dan Teknologi Indonesia Mechanical Engineering for Society and Industry Automotive Experiences Journal of Biomedical Science and Bioengineering Jurnal Pengabdian Mandiri Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Bahan Alam Terbarukan J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Fitriyana, Deni Fajar
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Journal : Advance Sustainable Science, Engineering and Technology (ASSET)

 1 
Mechanical Performance of Alkali-Treated Rattan Strips with Epoxy Coating for Sustainable Composite Applications Kalatharan, Sujentheran Nair; Imran, Al Ichlas; Irawan, Agustinus Purna; Siregar, Januar Parlaungan; Cionita, Tezara; Fitriyana, Deni Fajar; Anis, Samsudin; Dewi, Rozanna; Setyoadi, Yuris; Wisnu Prayogo
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.2017

Abstract

The use of natural materials like rattan in eco-friendly composites is gaining attention in materials engineering. However, its hydrophilic nature and interaction with other materials can affect mechanical strength. This study investigates how variations in rattan size and alkali treatment influence the tensile properties of single rattan strips through an epoxy dipping process. Rattan was prepared with varying lengths (5–15 cm), widths (3–8 mm), and a consistent thickness (0.5 mm). Alkali treatment used 5% and 10% NaOH concentrations for 1 and 24 hours. Tensile testing showed that a 5 cm × 8 mm strip achieved the highest tensile strength (49.95 MPa), Young's modulus (3562.77 MPa), and low strain (5.4%), while the 15 cm × 3 mm strip had the lowest strength (9.48 MPa) and modulus (475.69 MPa) with higher strain (10.32%). A 5% NaOH treatment for 24 hours improved adhesion and performance, while 10% caused degradation.
Mechanical Performance of Epoxy Composite Reinforced with Wood Dust and Crumb Rubber Waste Imran, Al Ichlas; Siregar, Januar Parlaungan; Cionita, Tezara; Fitriyana, Deni Fajar; Anis, Samsudin; Dewi, Rozanna; Junaedi, Thomas; Wijayanto, Etanto Heiliano; Prayogo, Wisnu
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2041

Abstract

The incorporation of wood dust and crumb rubber waste as filler in polymer matrix composite still requires in-depth evaluation of mechanical properties because they have different characteristics. This study evaluates the tensile, flexural, and hardness properties of epoxy composites reinforced with various fractions of wood dust and crumb rubber (5, 10, and 15%). The results showed that the composite with 5% crumb rubber produced the highest tensile strength of 15.52 MPa (CR5), while the highest flexural strength was 30.46 MPa (CR10), and the highest hardness was 75.9 HRC (CR15), indicating superior performance for CR fillers. The observations of the fracture surface showed that increasing the fraction of wood dust contributed to lowering the mechanical performance due to the relatively large distribution of voids and agglomeration. This finding confirms the importance of filler type and fraction selection on composite performance. Future research is recommended to explore filler surface modification and hybrid combinations to improve dispersion and bonding between phases in composites.
Mechanical Properties of Epoxy Composite Reinforced with Spent Coffee Ground and Coffee Husk Etanto Heiliano Wijayanto; Imran, Al Ichlas; Siregar, Januar Parlaungan; Mohd Ruzaimi Mat Rejab; Tezara Cionita; Wisnu Prayogo; Deni Fajar Fitriyana; Rozanna Dewi; Thomas Junaedi; Agustinus Purna Irawan
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2052

Abstract

This study aims to investigate the effect of increasing the concentration of natural filler on the mechanical properties of Spent Coffee Ground (SCG) / Coffee Husk (CH) reinforced epoxy matrix composite. The materials used in this study are epoxy resin as a matrix and waste coffee grounds and coffee husks as natural fillers with sizes of 100-mesh and concentrations of 10, 20, and 30 wt.%. The results showed that SCG 10 wt.% produced the best mechanical properties compared to the other samples based on tensile strength (19.58 MPa), tensile modulus (1.70 GPa), flexural strength (44.55 MPa), and flexural modulus (2.32 GPa). On the other hand, CH 30 wt.% contributed the highest hardness value of 50.33 HRB compared to other samples. The findings in this study prove that the appropriate composition will affect the compatibility between the filler and the matrix, thus impacting the mechanical properties of the composite. This phenomenon can be seen based on microscope analysis, which shows a strong interaction between the matrix and filler and the formation of voids and agglomeration
Effect of Natural Fiber Stacking Sequence on the Properties of Hybrid Composites for Drone Frame Applications Janiviter Manalu; Jefri Bale; Khristhoper Aris Arianto Manalu; Frans Augusthinus Asmuruf; Fitriyana, Deni Fajar; Nizar Alamsyah; Januar Parlaungan Siregar; Al Ichlas Imran; Tezara Cionita; Natalino Fonseca Da Silva Guterres
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2048

Abstract

The present study highlights the effective utilization of waste fibers in structural composites for drone frame applications, offering a sustainable pathway for developing high-performance materials while simultaneously addressing the issue of textile waste pollution. This study investigates the effect of ramie and cotton fiber waste fabric stacking sequences on the physical and mechanical properties of composites for quadcopter drone frames. Waste fabric was selected as an eco-friendly material to address textile pollution. The composites were fabricated using the hand lay-up technique with a 3:1 epoxy resin to hardener ratio, incorporating five layers of fabric in different configurations. The physical and mechanical properties, including density, water absorption, material hardness, flexural strength, and macro photography, were tested. The results showed that the composite made from fully cotton fabric (K-K-K-K-K) had the best density (1.182 g/cm³), lowest water absorption (2.22%), highest hardness (85.6 HD), and flexural strength of 179.1 MPa. These findings indicate that cotton fabric waste is a promising, sustainable material for composite reinforcement in quadcopter drone frame applications.
Effect of Biomass Feedstock Granulometry on Thermophysical Characteristics of Charcoal Briquettes via Screw Extrusion Samsudin Anis; Jefri Bale; Septian Eko Cahyanto; Ninda Kurniadi; Fitriyana, Deni Fajar; M. Thooriq Anwar; Januar Parlaungan Siregar; Natalino Fonseca Da Silva Guterres
Advance Sustainable Science Engineering and Technology Vol. 7 No. 4 (2025): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i4.2047

Abstract

The present study investigates the impact of particle size variation (10, 18, 20, and 35 mesh) on the physical and thermal properties of charcoal briquettes from coconut shells manufactured with a screw-based extruder machine. The briquette manufacturing process involves crushing, mixing, molding, and drying. Assessments were conducted to ascertain friability, compressive strength, density, calorific value, volatile matter, ash content, fixed carbon, and water content. Comparable assessments were also performed on commercially available export-grade briquettes designated as b_5. The results of this investigation demonstrate that all briquette samples generated conform to the SNI 01-6235-2000 standard for water, ash, and calorific value, and adhere to international standards for fixed carbon, density, and compressive strength. The b_4 specimen (35 mesh) demonstrated the best performance, exhibiting a friability of 0% in the unburned condition and 7.04% in the burned condition. Compared to b_5, the b_4 specimen exhibited notable enhancement, demonstrating a 100% increase in friability in the unburned condition and a 53.22% improvement in the burned condition. This study emphasizes the significance of smaller particle sizes in improving briquettes' mechanical strength and combustion efficiency. It presents the importance of renewable energy technology and sustainable waste management.
Influence of Mixing Time on the Hardness and Structure of Local Clay-Based Crucibles Rusiyanto; Rifky Ismail; Athanasius Priharyoto Bayuseno; Daffa Agya Mahardika; Fitriyana, Deni Fajar; Wirawan Sumbodo; Aldias Bahatmaka
Advance Sustainable Science Engineering and Technology Vol. 8 No. 1 (2026): November - January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i1.2314

Abstract

Although clay crucibles are frequently utilized in regional industries, their inadequate mechanical strength often causes durability issues. This study investigates the influence of mixing duration on the Vickers hardness and macrostructure of crucibles composed of local clay, kaolin, and molasses. The composition was made up of 47.5% clay, 47.5% kaolin, and 5% molasses as a binder, with 15% water added relative to the total weight. Durations of 15, 30, and 45 minutes were evaluated to determine their impact on material qualities. The findings indicated a positive relationship between mixing duration and hardness. At 15 minutes, the mean hardness was 4.1 HV, which escalated to 8.5 HV at 30 minutes and 12.4 HV at 45 minutes. The increased hardness with extended mixing durations indicates a more homogeneous particle dispersion and enhanced bonding among the raw ingredients. The findings suggest that increasing the mixing time can elevate the quality and longevity of locally manufactured crucibles, rendering them more appropriate for small-scale metallurgical applications.
Co-Authors A. P. Bayuseno Abdul Haris Abdul Latif Abdurrahman Abdurrahman Abram Puspa Pramudita Achmad Erlangga Bintang Samodra Adhi Kusumastuti Admoko, Mohammad Rizky Djati Agus Prasetyo Agustinus Purna Irawan Ahmad Athoillah Akhmad Fauzi Akmal Putra Fardinansyah Akmal Putra Fardinansyah Al Ichlas Imran Aldias Bahatmaka Aldias Bahatmaka Alfiana Fitri Istiqomah Alfiana Fitri Istiqomah Alrasyid, Mochamad Dzaki Amrizal, Abdi Gilang Andi Abdullah Ghyferi Andri Setiyawan Ardhianto, Mochamad Marte Aripin, Muhammad Bustanul Atanasius Priharyoto Bayuseno Athanasius Priharyoto Bayuseno Athanasius Priharyoto Bayuseno Athanasius Priharyoto Bayuseno Atika Atika Ayub Budhi Anggoro, Ayub Budhi Baharudin Priwintoko Bawono, Ayus Dios Buana, Lanang Puspa Chusni Ansori Cionita, Tezara Daffa Agya Mahardika Darsono, Febri Budi Dimyati, Saeful Dwijanarko, Fariz Elisya Rohana Etanto Heiliano Wijayanto Fahmi, Fiqri Fadillah Fahrezi, Irgi Fajri, Novila Rojabni Fiqri Fadillah Fahmi Frans Augusthinus Asmuruf Fuad Arief Raharjo Galih Taqwatomo Ghyferi, Andi Abdullah Gunawan Dwi Haryadi Guteres, Natalino Fonseca Da Silva Guterres, Natalino Fonseca Da Silva Hadi, Agung Efriyo Halim, Sonika Maulana Hanif Hidayat Hidayat, Indra Nurul Hidayat, Wakhid Muhlisin Hyung, Cho Joung I Nyoman Jujur Imanu Danar Herunandi Imran, Al Ichlas Iskandar Norman Iskandar, Ranu Ismail, Nur Hidayah Iwan Setyadi Jamiluddin, Jamiluddin Janiviter Manalu Januar Parlaungan Siregar Januar Parlaungan Siregar Januar Parlaungan Siregar Januar Parlaungan Siregar Jefri Bale JOHNSON SIALLAGAN Junaedi, Thomas Jurdan Fulandy Siswoyo Kalatharan, Sujentheran Nair Kamis, Arasinah Kano, Christina Paulina Karomi, Dimas Adib Kharisma Rizki Septareza Khristhoper Aris Arianto Manalu Kriswanto Kriswanto, Kriswanto Laksono, Aryo Eko Laksono, Galih Tri M. Dzulfikar M. Dzulfikar M. Thooriq Anwar Manalu, Janviter Marlangen, Retno Mat Rejab, Mohd Ruzaimi Mat Rejab, Mohd. Ruzaimi Meiartha, REGA Mochamad Marte Ardhianto Mochammad Marte Ardianto Moh. Jufriyanto Mohd Ruzaimi Mat Rejab Mubarok, D.I. Muhamadin, Rilo Chandra Muhammad Afrizal Muhammad Dzulfikar Muhammad Fahrizal Almeir Muhammad Habibullah Muhammad Khafidh Muhammad Rezha Assalam Muhammad Yusuf Wibowo Muhammad Ziddun Ni’am Muhammad Zulfikar Muhammad, Katon Muji Setiyo Murti Ayu Nur Safitri Murti Ayu Nursafitri Nanang Endriatno Natalino Fonseca Da Silva Guterres Ninda Kurniadi Nizar Alamsyah Norman Iskandar Norman Iskandar Norman Iskandar Nubli, Haris Nugroho, Rizky Fajar Nursiam, Kuat Pahlawan, Ilham Arifin Permata Ningtyas, Alviani Hesthi Pramesti, Santinia Andiva Prasetyo, Ares Yudi Pratama Eka P. S Prawibowo, Hartanto Prayogo, Wisnu Puspitasari, Windy Desti Putera, Finny Pratama Putra, Naufal Bahy Putri Agustin Priyani Rafif Dimas Pratama Rahmat Doni Widodo Rejab, Mohd Ruzaimi Mat Rifky Ismail Rifky Ismail Risky Ismail Rizal Maulana Rizki Setiadi Rizqi Fitri Naryanto Romualdus Satrio Senoaji Rozanna Dewi Rusiyanto Rusiyanto Rusiyanto, Rusiyanto Rusiyanto, R. Sambodo Arif Wibowo Samsudin Anis Septian Eko Cahyanto Setiadi, Rizki Setiawan, Nur Ervil Silva, Mateus De Sousa Da Siregar, Januar Parlaungan Sonika Maulana Sonika Maulana Sri Nugroho sri Nugroho Sudiyono, S. Sukarni Sulardjaka Sulardjaka Sulardjaka Sulardjaka Sulistyo Sulistyo Sulistyo Sulistyo Sunyoto Sunyoto Suwahyo - Tezara Cionita Tezara Cionita Thesar Aditya Nurcholis Triyanto, Sandy Wahyu Hidayat WAHYUDI Wibowo, Muhammad Errizky Wibowo, Muhammad Yusuf Wicaksana, Yazid Surya Wijayanto, Etanto Heiliano Wirawan Sumbodo Wisnu Prayogo Yabansabra, Yuliana Ruth Yotenka, Rahmadi Yuris Setyoadi Yusuf Subagyo Zaenal Abidin