Reviews

Progress on Electrostatic Performances of Explosive

  • LI Zhimin;ZHANG Tonglai;YANG Li;ZHOU Zunning;ZHANG Jianguo
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  • State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received date: 2011-05-31

  Revised date: 2011-08-31

  Online published: 2011-09-18

Abstract

The electrostatic performance of an explosive is an important aspect to estimate its safety under the electrostatic discharge environment. Studies of electrostatic sensitivity and electrostatic accumulation play an important role to reduce accidents caused by electrostatic discharge. The progress on the field of electrostatic performances of explosive is reviewed in this paper. Some factors influencing the results of measurement of the electrostatic spark sensitivity of explosive are analyzed, and the relationship between the electrostatic spark sensitivity and the molecular structure is discussed in detail. Also, the mechanism of igniting explosive by electrostatic discharge is discussed. Moreover, the studies related with electrostatic accumulation are reviewed briefly, and a further discussion on the electrostatic protection is made. The measurements of electrostatic sensitivity and electrostatic accumulation are influenced by various factors, such as the condition of instruments, ambient temperature, relative humidity, the shapes and sizes of the explosive particles. So, a large deviation would be expected when the electrostatic performance is evaluated under different conditions and environments, and the results we obtained are not absolute, only a relative comparison. When investigating the relationship between the electrostatic performance and molecular structure, these data should be obtained under a same condition.

Cite this article

LI Zhimin;ZHANG Tonglai;YANG Li;ZHOU Zunning;ZHANG Jianguo . Progress on Electrostatic Performances of Explosive[J]. Science & Technology Review, 2011 , 29(26) : 74 -79 . DOI: 10.3981/j.issn.1000-7857.2011.26.011

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