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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI JISIP: Jurnal Ilmu Sosial dan Pendidikan Jurnal Ilmiah Biologi UMA (JIBIOMA) Jurnal Ilmiah Wahana Pendidikan Indonesian Community Journal DEIKTIS: Jurnal Pendidikan Bahasa dan Sastra Jurnal Natural Innovative: Journal Of Social Science Research Dikdimas : Jurnal Pengabdian Kepada Masyarakat Jurnal Agro Fabrica
Rosliana Lubis, Rosliana
Universitas Medan Area
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Journal : Jurnal Natural

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The effect of maleic anhydride concentration in manufacturing polypropylene grafted maleic anhydride compatibilizer on the test percent of grafting degree TANJUNG, DENNY AKBAR; JAMARUN, NOVESAR; LUBIS, ROSLIANA
Jurnal Natural Volume 24 Number 2, June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i2.35317

Abstract

The difference in polarity between materials often prevents direct interaction; therefore, a compatibilizer is required to facilitate reactions between polar and non-polar substances. This study aims to investigate the effect of maleic anhydride (MA) concentration on the grafting process of MA onto polypropylene (PP) chains, using benzoyl peroxide (BPO) as an initiator. The blending method employing an internal mixer was used to combine the materials, and the degree of grafting was determined via titration, with three replicates performed for accuracy. The results indicated that the highest grafting degree, 10.28%, was achieved at a composition of 86% PP, 11% MA, and 3% BPO. Fourier Transform Infrared (FTIR) spectroscopy analysis of polypropylene grafted with maleic anhydride (PP-g-MA) revealed new absorption peaks at wavenumbers 1707 cm and 1162 cm. Furthermore, increasing the concentration of maleic anhydride did not significantly affect the grafting degree. This study provides valuable insight for the development of PPg-MA compatibilizers.
Preparation and characterization of physical properties of molded pulp from empty fruit bunches of oil palm LUBIS, ROSLIANA; RIYANTO, RIYANTO; SAISA, SAISA
Jurnal Natural Volume 24 Number 2, June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i2.37444

Abstract

This research aims to determine the impact of pretreatment on empty fruit bunches (EFB) of palm oil fibers before the pulping process on the quality of the molded pulp produced. The study includes EFB fiber pretreatment processes, pulp production, pulp molding, physical characteristic analysis, and molded pulp performance evaluation. The pulp production process involves acid-base hydrolysis reactions. The produced molded pulp is done manually. Characterization of the molded pulp includes measurements of paper grammage, thickness, density, and moisture content. The characteristics of pulp produced from pretreated EFB fibers are as follows: an average grammage value of 415.48 g/m, paper thickness of 1.53 mm, water absorption capacity of 13.33-33.33%, density of paper of 0,026 x 106 - 0,027 x 106 g/m3, and a smooth surface morphology. Meanwhile, the characteristics of pulp produced from without pretreatment EFB fibers include an average grammage value of 372.18 g/m, paper thickness of 0.77 mm, water absorption capacity of 20.34-43.21%, density of paper of 0,004 x 106 - 0,008 x 106 g/m3, and a rough surface morphology due to pores on the fiber surface.
Co-Authors Adhyaksa, Yohannes Apriansyah Sembiring Berutu, Sarlina Dardanila, Dardanila Dini, Dini Pratiwi Dwi Mutia Anggraini Dwi Widayati, Dwi Effiati Juliana Hasibuan, Effiati Juliana Farida Ariani Ferdinand Susilo Gustianingsih Harahap, Sindia Rada Hasibuan, Mahidin EL Wafa Hia, Indah Kurniati Ida Basaria Izhar Hasan Nasution KIKI NURTJAHJA Lubis, Haris Sutan Lumbanraja, Monika Indriani Meida Nugrahalia, Meida Meliala, Bibel Agrivino Muhammad Usman, Muhammad Muhammad Yusuf Mulyadi Mulyadi Novesar Jamarun Rahmiati Rahmiati Ritonga, Ovi Andre Riyanto Riyanto SAISA, SAISA Salliyanti, Salliyanti Sartini Sartini Sigit Simatupang, Monika Margaretha Sitepu, Keke Meinina Siti Rubiatik, Siti Sri Wahyuna Saragih Tanjung, Denny Akbar Tarigan, Emilia Surabina Br Widya, Nur Ridha Zakki Rizkiyah, Zakki