![](/images/graphics-bg.png)
Synthysis of rayon from date palm fronds
العناوين الأخرى
إنتاج الحرير الصناعي من سعف النخيل
المؤلفون المشاركون
al-Ghazzali, Ala Karim Muhammad
Hasan, Asim Hasan Muhammad
Mahdi, Yasamin Salih
المصدر
The Iraqi Journal of Agricultural Science
العدد
المجلد 49، العدد 6 (31 ديسمبر/كانون الأول 2018)، ص ص. 1049-1059، 11ص.
الناشر
تاريخ النشر
2018-12-31
دولة النشر
العراق
عدد الصفحات
11
التخصصات الرئيسية
الموضوعات
الملخص 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.
نمط استشهاد جمعية علماء النفس الأمريكية (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
نمط استشهاد الجمعية الأمريكية للغات الحديثة (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
نمط استشهاد الجمعية الطبية الأمريكية (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
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Text in English ; abstracts in English and Arabic.
رقم السجل
BIM-910834
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)