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All Journal International Journal of Community Service Learning Jurnal Teknik Mesin Indonesia
Dwiprasetya, Chaesar Deserendy
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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Karakteristik Uji Tarik dan Struktur Makro Plastic Waste dan Serat Bambu Putra, Wawan Trisnadi; Fadelan; Munaji; Winangun, Kuntang; Dwiprasetya, Chaesar Deserendy
Jurnal Teknik Mesin Indonesia Vol. 20 No. 1 (2025): Vol. 20 No. 1 (2025): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v20i1.841

Abstract

Plastics are widely used in wrapping food, drinks, and household furniture. This research uses materials in the form of shredded HDPE plastic, PET plastic seeds, and ori bamboo fiber. The composition of the mixture used is based on the weight fraction of a 65 gram specimen of mixed material. The main matrix of the mixture was HDPE; PET was added to increase stiffness; and bamboo fiber, as a natural reinforcement that strengthens the bond between components. Which strengthens the bond between the components. Results tensile test results showed the highest average value in specimen composition 1, which is 533.37 N with a tensile stress of 27.77 MPa. In specimen composition 5, the average value of the tensile test was 409.33 N and a tensile stress of 21.31 MPa. Due to the stronger nature of HDPE to bind the bamboo fibers, the tensile strength of the bamboo fibers will increase as the PET content decreases. With decreasing PET content. Macro test results showed that many air bubbles were trapped in the center of the tensile test sample which were not visible from the surface. not visible from the surface. PET plastic is not well mixed in the sample, while the bamboo fibers were well mixed in the test sample.
Composite Materials from Plant Fibers and Processed Plastic Waste for Exotic Knife Handles Putra, Wawan Trisnadi; Mohamed, Saiful Bahri; Muhammad, Martini; Winangun, Kuntang; Munaji; Habibi, Jawad Sultan; Dwiprasetya, Chaesar Deserendy
International Journal of Community Service Learning Vol. 9 No. 2 (2025): May
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijcsl.v9i2.90803

Abstract

This study developed an environmentally friendly composite material for exotic knife handles by utilizing plant fibers and recycled plastic waste. This study used an experimental method. This study aims to identify the best composition between natural fibers and recycled plastics that produce optimal mechanical and thermal properties while having high aesthetic value and comfort of use. This study is a research and development (R&D). The subjects involved in this study were natural materials in the form of plant fibers and recycled plastics. The population in this study included all possible combinations of fiber and plastic mixtures, while the samples were selected purposively. The data collection method was carried out through laboratory experiments with the composite material molding process using the compression molding method. The instruments used included mechanical test equipment, visual observation sheets, and questionnaires. The data analysis method was quantitative descriptive analysis for mechanical data and inferential statistical analysis. The results showed that the best composition was a mixture of 60% HDPE, 20% PP, and 20% coconut fiber with an HRB hardness value of 59.6 at a temperature of 280°C. In addition to the mechanical benefits, this study highlights the sustainability of the material and its economic potential in supporting local industries in Ponorogo. In conclusion, this study provides an innovative solution in plastic waste management while opening up new opportunities in the sustainability-based creative industry.
Co-Authors Fadelan Habibi, Jawad Sultan KUNTANG WINANGUN Mohamed, Saiful Bahri Muhammad, Martini Munaji Wawan Trisnadi Putra, Wawan Trisnadi