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Journal : Advance Sustainable Science, Engineering and Technology (ASSET)

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.
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.
Co-Authors - Basyirun - Soedartono A. P. Bayuseno Abdul Aziz Abram Puspa Pramudita Achmad Erlangga Bintang Samodra Adhi Kusumastuti Afindala, Ajib Agus Prasetyo Agustinus Purna Irawan Ahmad, Aminullah Ahmad, Aminullah Al Ichlas Imran Aldias Bahatmaka Anas, Fahrudin Anwar Johari Ar Rasyid, Moh. Rizal Ardhianto, Mochamad Marte Aryo Baskoro Utomo Atika Atika Azhari, Wildan  Budiandono, Galuh Nur Cholifah, Ayu Cionita, Tezara Danang, Setio Wardana Desyandri Desyandri Djuniadi Djuniadi Dwi Widjanarko Dwi Wijanarko Eko Supraptono Faadhil, Muhammad Faadhil, Muhammad Fahira, Jian Faridah Nur Amalina Feddy Setio Pribadi Fitriyana, Deni Fajar Godham Eko Saputro Gustomo, Gigih Halim, Sonika Maulana Heri Yudiono Hidayatulloh, Choirul Fatah Hilal Rozaq Akbar Huda, Fitroh Miftahul I Made Sudana Iman Taka, Buyung Imran, Al Ichlas Indarsih, Fitria Retno Januar Parlaungan Siregar Jefri Bale Junaedi, Thomas Kalatharan, Sujentheran Nair Kamis, Arasinah Karnowo - Khoiron, Ahmad Mustamil Kuntoro, Tri Laroybafih, Muhammad Bagus Latifah, Ana M Burhan R M. Thooriq Anwar Maftukin, M Maftukin, M. Manalu, Janviter Marlangen, Retno Maryanto, Luthfi Eka Maryanto, Luthfi Eka Masugino Moch. Taufiq Ichsan Mochamad Marte Ardhianto Mochammad Marte Ardianto Mufid, Faishal Muhammad Afrizal Muhammad Khumaedi Muhammad Ziddun Ni’am Mustikawati, Diana Langgeng Najibulloh, Gunawan Muhammad Najibulloh, Gunawan Muhammad Nandang Mufti Natalino Fonseca Da Silva Guterres Na’am, Fakhrihun Ninda Kurniadi Nisriinaa, Choirun Noor Hudallah Novitasari, Neny Nugroho, Rizky Fajar Nur Aini, Intan Nur Akhlis Sarihidaya Laksana, Nur Akhlis Sarihidaya Nur Qudus Nurhidayat, Akhlis Rahman Sari Nuril, Miftakhun P Pramono Pangestu, Pulih Phusavat, Kongkiti Pratiwi, Wikanti Prayogo, Wisnu Priyantama, Rifqi Dwi Priyatna, Bambang Sugeng Puspitasari, Windy Desti Putra, Naufal Bahy Rahmagandi, Irma Oktariamlati Rahmat Doni Widodo Rini Kusumawardani, Rini Risky Ismail Rizqi Fitri Naryanto Rizqiyah, Agita Ainur Rosidah Rosidah Rozanna Dewi Rr. Poppy Puspitasari Rubai Wijaya, Burhan Rusdarti - Rusiyanto Rusiyanto, Rusiyanto Sardi Sardi SATRIA, ANAS Septian Eko Cahyanto Shofi, Amalia Siregar, Januar Parlaungan Sita Nurmasitah Sonika Maulana Sonika Maulana Sri Endah Wahyuningsih Sugiarto, Dedi Suharno, Muhamad Sukarni Sukarni Sukarni Sunarto Sunarto Suprayogi, Sidiq Suryani, Titin Sus Widayani, Sus Susanto Susanto Suwandi, Fakhri Fauzi Syamsiar, Syamsiar Tamamudin, Mukhammad Taqy, Ibadurrohman Muhammad Tezara Cionita Titin Agustina Triyanto, Sandy Ulfah Mediaty Arief Utomo, Okky Husnan Arya Vidiyanto, Bagus Prabowo WAHYUDI Wibowo, Salvo Eka Wicaksana, Yazid Surya Widya Aryadi Wijayanto, Etanto Heiliano Wildan  Azhari Wisnu Prayogo Yahya Zakaria Yeri Sutopo Yuris Setyoadi Zaenal Abidin Zainal, Z. A.