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All Journal International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Bulletin of Engineering Science, Technology and Industry
Thohirudin
Universitas Pamulang
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Social Sciences Other

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MAKING A WHITEBOARD FROM MELAMINE IN ERPAK VILLAGE, RT 05/RW 04, CISAUK VILLAGE, CISAUK DISTRICT, TANGERANG REGENCY Giyanto; Thohirudin
International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Vol. 6 No. 2 (2026): July-October 2026
Publisher : RADJA PUBLIKA

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Whiteboards have been a staple in offices, universities, studios, and schools since the 1990s—nearly 40 years after their invention by photographer and Korean War veteran Martin Heit. They quickly eclipsed blackboards in popularity because they are easy to write on and erase, and are suitable for individuals with dust or chalk allergies. Today, whiteboards are generally preferred over blackboards, largely because they offer a more modern, cleaner aesthetic. Unlike writing on a blackboard with chalk, using a whiteboard keeps your hands clean, and the text produced by markers appears much clearer. However, their relatively high cost is a distinct disadvantage. A defining feature of a whiteboard is its smooth, glossy surface, which facilitates easy writing; however, not all whiteboards are made from the same material. Each material possesses unique characteristics that dictate how the board is used. There are six common materials used for whiteboard surfaces, one of which is melamine. Melamine boards consist of plywood coated with melamine, resulting in a smooth, shiny finish. These boards are often used for decorative purposes to enhance a room's appearance. While white is the most common color, they also come in green, blue, red, and cream. Melamine boards are typically available in standard plywood sheet sizes but are thinner, usually measuring 2–3 mm in thickness. To address the issue of cost, this article offers a solution for building your own whiteboard using easily accessible materials ranging from a basic, makeshift board to one that rivals or exceeds the quality of commercial products. Constructing a whiteboard from a melamine board requires a power drill. Once you have purchased a white melamine board, you can mount it directly onto a wall; the drill is needed to install wall anchors (fischers) to hold the mounting screws securely. At a fraction of the cost of a store-bought whiteboard, you now have a homemade whiteboard of comparable quality.
SYNTHESIS OF GRAPHENE NANOSHEETS FROM COCONUT SHELLS AT A ROASTING TEMPERATURE OF 220°C AND A PYROLYSIS TEMPERATURE OF 500°C USING SEM-EDX OBSERVATIONS AND PERFORMANCE TESTS Giyanto; Thohirudin; M. Nasrun
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 3 (2026): September
Publisher : PT. Radja Intercontinental Publishing

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To synthesize graphene nanosheet (GNS) using coconut shell as a basic material. The synthesis process involves two play stagesof initial roasting at 220 °C and pyrolysis at 500 °C. After the pyrolysis process, the synthesis results were analyzed using SEM andEDX to characterize the morphology and elemental composition of the resulting graphene nanosheets. Observations via SEM show a thin layer structure typical of graphene while EDX analysis confirms the dominance of carbon elements, indicating success in graphene formation. The results of the electrical conductivity work test were carried out to determine the DHL produced with a voltage of 40 V producing DHL 42.925, a voltage of 44V DHL 40.954, a voltage of 48 V DHL 36.875, a voltage of 51 V DHL 34.784, a voltage of 55 V DHL 33,290, it was found that the smaller the voltage used, the greater the electrical conductivity produced and the greater the voltage used, the smaller the electrical conductivity produced. The results of this research show that coconut shell can be an effective and environmentally friendly alternative material in graphene production, with a relatively simple and cheap synthesis method.
Co-Authors Giyanto Giyanto M. Nasrun