DocumentCode
2661986
Title
Notice of Retraction
Influence of ultrasonic treatment on the properties of nitrocellulose
Author
Wenfang Zheng ; Renming Pan ; Xiangyang Lin ; Zhanbin Chen ; Xiaoli Fu
Author_Institution
Sch. of Chem. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Volume
5
fYear
2010
fDate
16-18 April 2010
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To study the relationship between the performance of nitrocellulose and ultrasonic treatment, B-grade nitrocellulose with nitrogen content 13.47% was treated by ultrasonic waves, the treatment time was 5, 10, 20, 40 and 60 minutes. The influence of ultrasonic treatment on the changes of nitrogen content, intrinsic viscosity and solubility of nitrocellulose were characterized by Devarda´s alloy method, Ubbelohde viscosity method and solubility analysis method, respectively. The results revealed that the nitrate groups of B-grade nitrocellulose could be kept steadily in the ultrasonic treatment, the intrinsic viscosity of B-grade nitrocellulose could be declined from 311.8 to 286.4mL/g as the treatment time prolonging in 60 minutes when treated in acetone, and the solubility of B-grade nitrocellulose could be increased from 6.5% to 11.5% in less than 20 minutes when treated in mixed solvent. This indicated that the ultrasonic treatment on nitrocellulose might be a good way to improve the performance of nitrocellulose.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To study the relationship between the performance of nitrocellulose and ultrasonic treatment, B-grade nitrocellulose with nitrogen content 13.47% was treated by ultrasonic waves, the treatment time was 5, 10, 20, 40 and 60 minutes. The influence of ultrasonic treatment on the changes of nitrogen content, intrinsic viscosity and solubility of nitrocellulose were characterized by Devarda´s alloy method, Ubbelohde viscosity method and solubility analysis method, respectively. The results revealed that the nitrate groups of B-grade nitrocellulose could be kept steadily in the ultrasonic treatment, the intrinsic viscosity of B-grade nitrocellulose could be declined from 311.8 to 286.4mL/g as the treatment time prolonging in 60 minutes when treated in acetone, and the solubility of B-grade nitrocellulose could be increased from 6.5% to 11.5% in less than 20 minutes when treated in mixed solvent. This indicated that the ultrasonic treatment on nitrocellulose might be a good way to improve the performance of nitrocellulose.
Keywords
chemical engineering; chemical technology; nitrogen compounds; propellants; solubility; solvents (industrial); ultrasonic applications; viscosity; B-grade nitrocellulose properties; Devarda alloy method; Ubbelohde viscosity method; intrinsic viscosity; nitrocellulose solubility; nitrogen content; solubility analysis method; solvent; time 10 min; time 20 min; time 40 min; time 5 min; time 60 min; ultrasonic treatment; Chemical analysis; Chemical engineering; Chemical technology; Ethanol; Nitrogen; Pollution; Propulsion; Purification; Solvents; Viscosity; Nitrocellulose; Propellant; Properties; Ultrasonic treatment;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-6347-3
Type
conf
DOI
10.1109/ICCET.2010.5486087
Filename
5486087
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