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All Journal Jurnal Sains Student Research Jurnal Bahan Alam Terbarukan
Roni Maryana
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Chemical Engineering, Chemistry & Bioengineering Other

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Optimization Of Carboxymethyl Cellulose (CMC) Synthesis In Production Of Hydrogel From Ananas comosus L. Leaves Ardelia Devina; Roni Maryana; Mirad Fahri; Anggi Khairina Hanum Hasibuan; Tasrikin Agustianto
JOURNAL SAINS STUDENT RESEARCH Vol. 3 No. 6 (2025): Jurnal Sains Student Research (JSSR) Desember
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v3i6.6479

Abstract

Cellulose and its derivatives are important industrial raw materials because of their abundance, biodegradable properties, environmentally friendly, and have good mechanical and thermal properties. This study aims to determine the synthesis process and characteristics of carboxymethyl cellulose (CMC) in the manufacture of hydrogels from pineapple leaf waste. The stages of the CMC synthesis process from pineapple leaves are carried out through the process of delignification, bleaching, alkalization and carboxymethylation. Cellulose modification was done by alkalization method using 30% NaOH and variation of temperature and time on carboxymethylation with monocloroacetic acid (MCA) in 2-propanol solvent. In the manufacture of CMC hydrogel was made by using calcium chloride (CaCl2) as a crosslink agent. The results showed that CMC from pineapple leaf waste had good quality with pH 6,0-7,5 and degree of substitution values ranging from 0,4-1,2. Carboxymethyl cellulose and hydrogel produced showed the presence of O-H, C-H and C=O functional groups. The presence of ATR-IR peak 1053-1104 cm⁻¹ in the bleached product confirmed the presence of β-(1,4)-glycosidic bond of pure cellulose, while the peak at 1500-1700 cm⁻¹ of the modified cellulose product confirmed the carbonyl group of carboxymethyl cellulose (CMC).
Valorization of Empty Palm Oil Fruit Bunch Fiber as Hydrophobic Cement Board Halim, Abdul; Frizky Septian Pramasta; Wulandari Kusuma Dewi; Janis Wardila Ningsih; Ferian Erlangga; Roni Maryana; Eka Lutfi Septiani
Jurnal Bahan Alam Terbarukan Vol. 13 No. 2 (2024): December 2024 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v13i2.5264

Abstract

The penetration of property business and technology has increased significantly increased due to economic improvement. One of the materials in high demand is cement board. Cement board compost of agricultural waste limits its application due to its easily absorbing water. Herein, we used the empty palm oil fruit bunch as a filler in cement board and coated it with polystyrene from styrofoam waste. The board shows good mechanical strength and fulfill the minimum requirement for cement board standard of Indonesian National Standard (SNI). The board also shows hydrophobic properties, and no water droplets permeate the surface even after 4 h. These findings open a new application for cement board not only for the interior but also for the exterior.
Co-Authors Abdul Halim Anggi Khairina Hanum Hasibuan Ardelia Devina Eka Lutfi Septiani Ferian Erlangga Frizky Septian Pramasta Janis Wardila Ningsih Mirad Fahri Tasrikin Agustianto Wulandari Kusuma Dewi