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All Journal International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Abdi Jurnal Publikasi
Maren Sius Girsang
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Social Sciences Other

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STUDY OF THE ROLE OF HDPE WASTE AS A MATRIX FOR COMPOSITES REINFORCED BY IVORY FIBER FOR AUTOMOTIVE PRODUCTS Saloom Hilton Siahaan; Muktar Bahruddin Panjaitan; Maren Sius Girsang
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 10 (2025): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v4i10.899

Abstract

Hybrid composites are composites composed of several matrices and fibers, where the fiber types are vertical fibers and random fibers. The materials used to make hybrid composites are HDPE waste and palm fiber. With variations in fiber and powder volume fractions of 70%: 30% 60%: 40% and 50%: 50%, with different fiber directions, namely vertical and random, specimen making and testing procedures refer to ASTM D 638 for tensile tests and ASTM D256-03 for impact tests. A study has been conducted on the effect of variations in volume fractions in hybrid composites on the mechanical properties of the composite. The tests carried out in this study were tensile tests and impact tests. The results of the tensile test showed the highest value of 16.588 MPa for the variation of the HDPE volume fraction of 70% fiber 30% vertical fiber direction and the lowest value was 8.2762 MPa for the variation of the HDPE volume fraction of 60% fiber 40% with random fiber direction. While for the impact test the highest value was 8.53 joules with the variation of the HDPE volume fraction of 60% fiber 40% vertical fiber direction and the lowest value was 4.53 joules with the variation of the volume fraction of 60% fiber 40% with random fiber direction. It was concluded that if using the unidirectional fiber direction (vertical) to make the specimen, it will have better strength and toughness values.
SOSIALISASI MESIN PENGERING CENGKEH DI DESA BUTTU BARTONG KABUPATEN SIMALUNGUN Jhon Sufriadi Purba; Maren Sius Girsang
Abdi Jurnal Publikasi Vol. 4 No. 3 (2026): Januari
Publisher : Abdi Jurnal Publikasi

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Abstract

Historically, cloves were one of the main spices that drove international trade routes and the arrival of Europeans to the Indonesian archipelago. Cloves remain a crucial commodity today, particularly for the clove cigarette, pharmaceutical, food, beverage, and essential oil industries. Drying cloves is a crucial stage in the post-harvest process, aimed at reducing water content and improving product quality. This clove drying machine socialization aims to accelerate clove production in Buttu Bartong village, addressing the energy needs of clove drying machines with various heating elements: electric, gas, and biomass heaters. The method used is socialization of clove drying machines with various heating elements to accelerate clove harvest production in Buttu Bartong village. Electric heaters provide more stable temperature control, while gas heaters show lower operational costs. This socialization is expected to provide recommendations regarding optimal drying systems, which are not only energy efficient but also economical, thus supporting the sustainability of optimal clove processing production.
Co-Authors Muktar Bahruddin Panjaitan Purba, Jhon Sufriadi Saloom Hilton Siahaan