Citation

Guo H, Wu Y, Tang H, Wang K, Wang L, Xu C. China Saf. Sci. J. 2022; 32(2): 139-144.

Copyright

(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2022.02.019

PMID

unavailable

Abstract

In order to obtain insensitive booster explosives with better performance, based on HMX raw materials, fine-grained HMX was prepared by using solvent-non-solvent recrystallization technology and ultrasonic spray technology. Meanwhile, coated HMX with acrylate rubber (ACM), F2602 and Viton A as binders was prepared by using the experiment method, and its safety was tested and analyzed. The results indicate that after refinement, the thermal stability and thermal sensitivity of HMX are reduced, while its impact stability are greatly improved. When coated HMX is prepared, its apparent activation energy and pre-exponential factors are greater than that of refined samples under the condition of the same ratio of binder and raw material, and moreover, HMX coated with ACM will result in better thermal stability. According to the critical temperature of thermal explosion, it can be concluded that explosives coated with ACM at the ratio of 95 ∶5 has the best performance, and impact sensitivity test also shows that ACM has the most obvious desensitization effect. © 2022, Editorial Department of China Safety Science Journal. All rights reserved.

Language: zh