Notice of RetractionInfluence of ultrasonic treatment on the properties of nitrocellulose

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.

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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.