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All Journal Jurnal Elemen Jurnal Masyarakat Indonesia
Faiz Listyanda
Universitas Tidar
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering

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ANALISIS KEKUATAN MEKANIK SERAT KELAPA BERMATRIK UNSATURATED POLYESTER DENGAN VARIASI LAMANYA WAKTU PERLAKUAN ALKALI NaOH DAN KOH Muhammad Fauzan Nurhidayat; Sri Hastuti; Faiz Listyanda
ELEMEN : JURNAL TEKNIK MESIN Vol. 13 No. 1 (2026)
Publisher : POLITALA PRESS

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Abstract

Composite materials have received attention from automotive industry players. An interesting raw material to be developed is coconut fiber waste which is abundant in Indonesia as a tropical country. The study aims to analyze the mechanical strength of coconut fiber-unsaturated polyester BQTN-EX 157 composite with volume fraction of 30%: 70%, fabricated using hand lay-up method of random fiber orientation with 15mm fiber length. This study has three variations of alkalization treatment length; 4 hours, 6 hours, and 8 hours treatment. Alkalization uses 5% NaOH and 5% KOH solutions. The tests used ASTM D6110 charpy impact test and ASTM D638 tensile test. The 6-hour KOH immersion treatment had the highest absorption energy of 4.9085 Joules and the 4-hour KOH immersion treatment had the highest impact price of 0.052 J/mm2. The 6-hour KOH immersion treatment received a tensile stress value of 13.60 MPa with the highest elastic modulus of 852.79 MPa. Observation of specimen fracture shows the presence of fiber pullout, voids, brittle fracture, rich matrix and others.
Peningkatan Perekonomian Warga Kurang Mampu melalui Pengadaan Tempat Usaha Kios Kelontong Adityo Noor Setyo Hadi Darmo; Nur Hayati; Faiz Listyanda
Jurnal Masyarakat Indonesia (Jumas) Vol. 3 No. 02 (2024): Jurnal Masyarakat Indonesia (Jumas)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jumas.v3i02.92

Abstract

The existence of home industry plays a very important role in empowering small and medium-sized communities so that they as business actors have independence and self-confidence in entrepreneurship to help the family economy. This Community Service aims to help increase the economic value of small business owners' families by providing kiosks as permanent business premises so that the layout and service are better and compared to previous kiosks/grocery stores which were managed conventionally. The service activities were carried out by the service team together with residents who live in the surrounding areas, starting with conducting site surveys, followed by procurement of row materials in the form of harbel, river sand, cement and lime. Carrying out activities in order to obtain optimal output results, during the activity process stages, assistance is provided with work by the service team starting from preparation for demolition, installation of building foundations, harbel walls, building framework to the finishing process. The impact of good cooperation between partners, the surrounding community and the service team can result in a permanent kiosk building that is suitable, safe and comfortable to be used as a grocery store business to meet the needs of the surrounding residents.
Co-Authors Adityo Noor Setyo Hadi Darmo Muhammad Fauzan Nurhidayat Nur Hayati Sri Hastuti