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Synthysis of rayon from date palm fronds
Other Title(s)
إنتاج الحرير الصناعي من سعف النخيل
Joint Authors
al-Ghazzali, Ala Karim Muhammad
Hasan, Asim Hasan Muhammad
Mahdi, Yasamin Salih
Source
The Iraqi Journal of Agricultural Science
Issue
Vol. 49, Issue 6 (31 Dec. 2018), pp.1049-1059, 11 p.
Publisher
University of Baghdad College of Agriculture
Publication Date
2018-12-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Topics
Abstract EN
The artificial silk (Rayon) was produced from the fronds of date palms which was taken from date palm trees (type Al-Zahdi) from the Iraqi gardens.
Two main parts of the frond, namely leaves and stalks were used in this study to produce rayon.
The palm fronds were converted into a powder of 90-180 micrometers.
Major steps were used to produce rayon; delignification, bleaching and finally dissolution.
Modified organosolv method which uses organic solvent method was applied to remove high lignin content.
Three variables were studied in the delignification process: temperature, the ratio of ethanol to water and digestion time.
The results showed that the best percent of lignin removal was (97%) which occured at; digestion time (80 minutes), temperature (185oC) and the ratio of ethanol: water of 50: 50 wt/wt.
Statistical experimental design type Central Composite Design (CCD) has been used to find a mathematical relationship between the variables and the remaining lignin percent as a dependent variable.
The effect of using different catalysts in delignification process have been studied and found that the best catalyst is sodium hydroxide at the concentration (0.025) mole/L which gave the same percent removal of lignin (97%) but with low digestion time about 30 min.
In the next step, the cellulose was dissolved using.
NaOH with different concentrations (4%-12%) and the results showed that the optimum concentration of sodium hydroxide was 8% at temperature - 20oC.
In order to improve cellulose dissolution, urea was added with proportion (6% NaOH + 4% urea).
Finally, the cellulose was spinning with 10% H2SO4 to prepare rayon.
American Psychological Association (APA)
Mahdi, Yasamin Salih& al-Ghazzali, Ala Karim Muhammad& Hasan, Asim Hasan Muhammad. 2018. Synthysis of rayon from date palm fronds. The Iraqi Journal of Agricultural Science،Vol. 49, no. 6, pp.1049-1059.
https://search.emarefa.net/detail/BIM-910834
Modern Language Association (MLA)
Mahdi, Yasamin Salih…[et al.]. Synthysis of rayon from date palm fronds. The Iraqi Journal of Agricultural Science Vol. 49, no. 6 (2018), pp.1049-1059.
https://search.emarefa.net/detail/BIM-910834
American Medical Association (AMA)
Mahdi, Yasamin Salih& al-Ghazzali, Ala Karim Muhammad& Hasan, Asim Hasan Muhammad. Synthysis of rayon from date palm fronds. The Iraqi Journal of Agricultural Science. 2018. Vol. 49, no. 6, pp.1049-1059.
https://search.emarefa.net/detail/BIM-910834
Data Type
Journal Articles
Language
English
Notes
Text in English ; abstracts in English and Arabic.
Record ID
BIM-910834