Influence of Chemical Treatments Sequence on Morphology and Crystallinity of Sorghum Fibers
| العنوان: | Influence of Chemical Treatments Sequence on Morphology and Crystallinity of Sorghum Fibers |
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| المؤلفون: | Abdul Aziz Ammar, Ghiska Ramahdita, Mochamad Chalid, Ismojo Ismojo, Anne Zulfia |
| المصدر: | Indonesian Journal of Chemistry; Vol 18, No 2 (2018); 349-353 Indonesian Journal of Chemistry, Vol 18, Iss 2, Pp 349-353 (2018) |
| بيانات النشر: | Universitas Gadjah Mada, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Sodium chlorite, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, sorghum bagasse, chemistry.chemical_compound, Crystallinity, Lignin, Hemicellulose, FE-SEM, Cellulose, QD1-999, biology, Chemical modification, food and beverages, General Chemistry, microfibrillated cellulose (MFC), chemical treatments, crystallinity index, FTIR, 021001 nanoscience & nanotechnology, Sorghum, biology.organism_classification, 0104 chemical sciences, Chemistry, chemistry, Chemical engineering, Sodium hydroxide, 0210 nano-technology |
| الوصف: | Micro-fibrillated cellulose (MFC) derived from natural fibre is continuously gaining interest to produce an environmentally-friendly material, due to economic and ecological reasons. In consequence, sorghum is one of the most-cultivated crops that usually remain the waste as by product of bioethanol production. Indeed, it will be a promising area to utilize sorghum waste to produce MFC for enhancing polymer performance, especially in terms of crystallinity. The objective of this study is to investigate the effect of a sequence of chemical modification was applied to sorghum fibres, i.e. alkalization using 4% sodium hydroxide followed by bleaching using 1.7% sodium chlorite plus acetic acid as a buffer. The treatment was purposed to unbundle the lignocellulose networks into microfibrils cellulose with less amorphous part and lower hydrophilic properties. Evaluation of the chemical treatments effect on internal microstructure, crystallinity index and chemical composition of sorghum fibre was measured via Field-Emission Scanning Electron microscope (FE-SEM), X-ray Diffraction (XRD) and Fourier Transformation Infra-Red (FTIR) Spectroscopy. The experiments show that treatments led to a removal of binding materials, such as amorphous parts hemicellulose and lignin, from the sorghum fibres, resulting MFC of sorghum fibres and enhanced crystallinity index from 41.12 % to 75.73%. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1411-9420 2460-1578 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a3de9fadf96af05c7c6958923b07a8a https://journal.ugm.ac.id/ijc/article/view/27194 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....6a3de9fadf96af05c7c6958923b07a8a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14119420 24601578 |
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