Suripto, Dwi Yuwono and Kiswandono, Agung Abadi and Simanjuntak, Wasinton and Noviany, Noviany and Sutopo, Hadi (2020) Similarity: Characterization of Carboxymethyl Cellulose (CMC) Synthesized from Microcellulose of Cassava Peel. Materiale Plastice. (Unpublished)

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Abstract

In this study, carboxymethyl cellulose (CMC) was synthesized from the cellulose of cassava peel using alkalization and etherification reaction, and it was subsequently characterized with various techniques. Microcellulose was obtained by hydrolyzing α-cellulose from cassava peel using H2SO4 with concentrations of 45%, 47%, and 49%. The experimental results indicate that the varying concentrations of acid affect the particle size of the cellulose, with 49% H2SO4 solution producing a cellulose with particle size of around 0.45-2.42 µm and relative percentage of 11.3% according to PSA analysis. Other analyses conducted included determination of substitution degrees, DTG/DTA/TGA, FTIR, SEM, and XRD. The value of the substitution degree was determined at 0.27. TGA decomposition thermograms at a temperature of 150oC-320oC of 19.60 % indicate CMC compounds. DTA thermograms show that these CMC compounds have endothermic properties at 140oC and exothermic properties at 260oC. FTIR spectra show the presence of absorption band at wave number 1605 cm-1 , which is a characteristic absorption of carbonyl group bound to cellulose. The results of SEM analysis indicate that the CMC has a tenuous surface morphology, and the XRD diffractograms are marked by the presence of weak peak at 2θ = 20o , implying the existence of CMC as mostly amorphous.

Item Type: Other
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia
Depositing User: Dr Agung Abadi Kiswandono
Date Deposited: 11 Apr 2022 01:04
Last Modified: 11 Apr 2022 01:04
URI: http://repository.lppm.unila.ac.id/id/eprint/41190

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