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All Journal Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia EduChemia: Jurnal Kimia dan Pendidikan Al-Kimia Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Cokroaminoto Journal of Chemical Science Jurnal Abdimas Indonesia : Jurnal Abdimas Indonesia
Nurmalasari, Nurmalasari
Program Studi Kimia Universitas Cokroaminoto Palopo
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Other

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Journal : Al-Kimia

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Pengaruh Komposisi Kitosan Terhadap Sifat Biodegradasi dan Water Uptake Bioplastik dari Serbuk Tongkol Jagung Muhammad Nur Alam; Kumalasari Kumalasari; Nurmalasari Nurmalasari; Ilmiati Illing
Al-Kimia Vol 6 No 1 (2018): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v6i1.4778

Abstract

The aim of this research is to obtain the effect of chitosan addition on the properties of biodegradation and water uptake for bioplastics. Bioplastic is made from mixing corncob powder and chitosan using by gliserol as plasticizer. Bioplastic is synthesized for gelatinization temperature of 80oC. Chitosan addition is varied to 2, 4, and 6 g. Based on the analysis, the addition of chitosan can significantly decrease water uptake of bioplastic. The lowest percentage of water uptake was 8.59 % by addition 6 gr chitosan. The highest weight loss percentage of bioplastic was 88,42 % which is obtained by the addition of 2 gr chitosan heaped for 15 days in soil. This indicates that the bioplastic has the high biodegradation properties.  Also, the result of FTIR analysis indicated presence of O-H and N-H groups of bioplastics due to the addition of chitosan and glyserol, but their instensity experienced falling down and shifting at the wave numbers after stockpiled.
Plastic Pyrolisis of Low Density Polyethylene (LDPE) Using Bleaching Earth (BE) Catalyst Become Liquid Fuel Sri Widya Astuti Abidin; Nurmalasari Nurmalasari; Sumiati Sumiati; Ayu Ramadani
Al-Kimia Vol 8 No 1 (2020): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v8i1.10750

Abstract

This study aims to determine the effect of adding Bleaching Earth (BE) catalyst to the amount of liquid fraction by pyrolysis of Low Density Polyethylene (LDPE) and find out the concentration of gasoline and diesel fractions from plastic pyrolysis Low density polyethylene (LDPE). The method in this study is the pyrolysis method (heating without oxygen) and analysis of the liquid fraction resulting from pyrolysis using GCMS (Gas Chromatrographic Mass Spectrometry). In this study, the effect of adding Bleaching Earth (BE) catalyst on Low Densiry Polyethylene plastic pyrolysis is the more catalyst used, the lower the quantity of liquid fraction. Based on GCMS analysis on plastic pyrolysis of Low Density Polyethylene (LDPE) from various variations of Bleaching Earth (BE) catalysts used the optimum concentration was obtained by adding 2.5 g, 5 g, and 7.5 g Bleaching Earth (BE) catalysts to produce fractions higher diesel (C13-C20), 37.04%, 31.04% and 35.59% respectively
Co-Authors Alam, Muhammad Nur Ayu Ramadani Eva Sohriati Hammado, Nururrahmah Illing, Ilmiati Khaerati Kumalasari Kumalasari Laurensius Leong Liwu Lestari, Sastriana Jaya Muhammad Nur Alam Nurasia Nurasia Nurasia Putu Darmawan Ramli, Irwan Sri Widya Astuti Abidin Suhaeni Suhaeni Sukarti Sukarti Sumiati Sumiati Sumiati Sumiati Syamsuddin, Mimi