Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Majalah Kulit, Karet, dan Plastik Jurnal Litbang Industri
Elda Pelita
Unknown Affiliation
Engineering Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis sifat fisika pemanfaatan pati tandan kosong sawit dan limbah plastik LDPE sebagai bahan pembuatan plastik biodegradabel Tengku Rachmi Hidayani; Elda Pelita; Gusfiyesi Gusfiyesi
Majalah Kulit, Karet, dan Plastik Vol 33, No 1 (2017): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (679.695 KB) | DOI: 10.20543/mkkp.v33i1.2202

Abstract

This research aimed to overcome the issue of plastic packaging waste that accumulates in nature because synthetic polymers cannot be easily unraveled by bacteria. Biodegradable plastics were produced by mixing waste of plastics of the low density polyethylene (LDPE) with starch of empty palm fruit bunches, modified with the addition of maleic anhydride as a crosslinking agent. To produce biodegradable plastics, different compositions of LDPE waste, starch of empty palm fruit bunch, maleic anhydride, and benzoyl peroxide were used, namely (90: 10: 1: 1), (80: 20: 1: 1), (70: 30: 1: 1), and (60: 40: 1: 1). Research stages consisted of extraction of starch from palm empty fruit bunch (PEFB); preparation of biodegradable plastic powder with the reflux method and xylene solvents; and making of biodegradable plastics using the press molding method. Based on the results of characterization, it was revealed that the optimum condition was generated by biodegradable plastics with the composition of LDPE waste, starch of empty palm bunches, maleic anhydride, and benzoyl peroxide was equal to 60: 40: 1: 1, which generated the tensile strength value of 6.9410 N/m2, the elongation at break of 3.1875%, the the melting point temperature of 103oC, and the decomposition temperature of 384oC. Besides, the thermal gravimetric test generated a residue of 12.6% and results of the analysis on morphological properties suggested that the starch distributed evenly.Keywords: Biodegradable plastics, LDPE waste, LDPE-g-MA, starch, palm empty fruit bunch.
Perbandingan efisiensi adsorben fly ash dan dolomit yang berasal dari Sumatera Barat terhadap penyerapan methylene blue Desniorita Desniorita; Rita Youfa; Elda Pelita; Resi Levi Permadani; Anang Baharuddin Sahaq; Miftahurrahmah Miftahurrahmah
Jurnal Litbang Industri Vol 13, No 1 (2023)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v13i1.8032.35-40

Abstract

Fly ash  merupakan limbah hasil pembakaran pabrik kelapa sawit yang mengandung silika dan mineral alkali yang dikenal sebagai komponen penting adsorben. Dolomit diketahui juga sebagai material sedimentasi karbonat yang memiliki kemampuan menyerap logam. Bahan baku utama yang digunakan untuk penelitian adalah fly ash  yang diperoleh dari Pabrik Kelapa Sawit Mutiara Agam di Provinsi Sumatera Barat, dolomit dari Kamang, dan methylene blue (MB) sebagai senyawa model limbah tekstil. Bahan tersebut dikalsinasi 900oC selama 4 jam, kemudian dihaluskan dan diayak agar ukuran partikel seragam. Adsorben dolomit dan fly ash dilakukan karakterisasi morfologi dan dilanjutkan dengan uji penyerapan pada larutan MB. Berdasarkan hasil uji penyerapan, adsorben fly ash memiliki efisiensi penyerapan tertinggi sebesar 99,236% dibandingkan dengan adsorben dolomit yaitu sebesar 46,9%.
Co-Authors Anang Baharuddin Sahaq Desniorita Desniorita Gusfiyesi Gusfiyesi Miftahurrahmah Miftahurrahmah, Miftahurrahmah Resi Levi Permadani Rita Youfa Tengku Rachmi Hidayani