Synthesizing and Producing of Low Sensitive Nitrocellulose with Acetylation Method

Document Type : Research Paper

Authors

1 Ph.D., Department of wood and paper science and technology, Faculty of natural resources, University of Tehran, Karaj, Iran

2 Associate Prof., Department of wood and paper science and technology, Faculty of natural resources, University of Tehran, Karaj, Iran

Abstract

In this Study for Synthesizing and Producing of Low Sensitive Nitrocellulose Used of Acetylation Method. At the First Time it Was Necessary to Nitrocellulose with Various Nitrogen Content 9/50, 11/50, 12/40 and 12/80. By Using of Effective Parameters on the Nitrogen Content Such as Mixture Acid Percent, Nitration Time (35, 45, 55 and 60), Acid to Cellulose Ratio (60and 75) Produced the Nitrocellulose and Then with Constant Parameters of Acetylation Reaction Such Acetic Acid Content, Acetic Anhydride and Variable Parameters Such as Use and Without Using of Toluene, Catalyzer Percent (Perchloric Acid 0/03 and 0/04) the Cellulose Nitrate- Acetate Produced. The Results has been Showed That Without Using of Toluene Produce Gelatinous Product That Didn't Capable to Drying. Also with using of 0/03 Percent Catalyzer Content Can be Achieved to Cellulose Nitrate- Acetate with White Color Fiber Form. The Curves of IR has been Showed when Nitrocellulose Converted to Cellulose Nitrate- Acetate with Acetylation Reaction, Hydroxyl Group of Nitrocellulose Replaced With Acetyl Group. Also Result has been Showed when Nitrocellulose Converted to Cellulose Nitrate – Acetate, the Peak of Hydroxyl Group Decreased with Increasing of Nitrogen Content. In the Nitrocellulose with 12/80 Nitrogen Content the Peak of Hydroxyl was Eliminated. Also the Result has been Showed by Acetylation of Nitrocellulose: Solubility, Thermal Decomposition and Stability of nitrocellulose was Increased and Burning Rate and Calories was Decreased.

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References

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Iranian Journal of Wood and Paper Industries
Volume 10, Issue 2
August 2019
Pages 175-187

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