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Rizky Dwiandra Putra
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Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Analisis Pemanfaatan Oksidator Ramah Lingkungan sebagai Alternatif Amonium Perklorat dalam Propelan Komposit untuk Mendukung Kemandirian Industri Pertahanan , Nurul Ilmi; Timbul Siahaan; I Nengah Putra; Rizky Dwiandra Putra; Aris Haryanto
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Composite propellants are the primary fuel in rocket propulsion systems, consisting of a binder, fuel, and oxidizer. Ammonium perchlorate (AP) has long been used as an oxidizer in composite propellants due to its high performance and optimal combustion characteristics. However, the use of AP has negative environmental impacts due to hydrogen chloride (HCl) emissions, which contribute to air pollution and the potential for acid rain. Therefore, environmentally friendly alternative oxidizers are needed to support the defense industry. This study employs a qualitative method based on a literature review to analyze alternative oxidizers such as ammonium nitrate (AN), ammonium dinitramide (ADN), hydrazinium nitroformate (HNF), and hexaazaisowurtzitane (HNIW). The findings indicate that ADN is the most promising alternative to AP due to its good oxygen balance, high specific impulse (Isp), and more environmentally friendly combustion products. Meanwhile, HNF and HNIW exhibit high performance but are less stable and more sensitive to shocks. AN is a more economical and readily available oxidizer; however, it has limitations in terms of thermal stability and burn rate. These alternative oxidizers have the potential to replace AP in reducing environmental impact while supporting the self-sufficiency of the defense industry, considering aspects of safety, energy efficiency, and environmental impact. Further research is needed to enhance the stability of ADN and develop more efficient and sustainable production strategies for alternative oxidizers.
Kinerja Papan Komposit Ramah Lingkungan Terhadap Api: Studi Literatur Rizky Dwiandra Putra; Dangan Waluyo; Timbul Siahaan; Nurul Ilmi; Alvin Muhammad Savero
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Natural fiber-based composite boards have gained increasing attention as a sustainable and eco-friendly alternative to conventional construction materials. While these materials offer notable mechanical performance and material efficiency, one of the primary challenges lies in improving their resistance to fire. This review presents a comprehensive analysis of existing literature on the fire performance of natural fiber composites, focusing on the role of fiber type, resin formulation, flame retardant additives, and production techniques. Based on a synthesis of ten experimental studies, it was found that composites combining kenaf fibers with phenolic resin and ammonium polyphosphate (APP) demonstrated the highest fire resistance—indicated by a Limiting Oxygen Index (LOI) exceeding 30%, longer ignition times, and slower burn rates. Additionally, fabrication methods such as hot pressing and surface coating proved effective in enhancing thermal resistance. Despite their promise, the adoption of these composites in broader industrial applications is hindered by challenges including energy efficiency, additive costs, and long-term stability. This review suggests that future development should integrate innovative material science with sustainable manufacturing strategies to produce fire-safe, cost-effective, and environmentally responsible composite panels.
Co-Authors , Nurul Ilmi Alvin Muhammad Savero Aris Haryanto Dangan Waluyo I Nengah Putra Nurul Ilmi Timbul Siahaan