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A new type of functional chemical sensitizer \(\hbox {MgH}_{2}\) for improving pressure desensitization resistance of emulsion explosives

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Abstract

In millisecond-delay blasting and deep water blasting projects, traditional emulsion explosives sensitized by the chemical sensitizer \(\hbox {NaNO}_{2}\) often encounter incomplete explosion or misfire problems because of the “pressure desensitization” phenomenon, which seriously affects blasting safety and construction progress. A \(\hbox {MgH}_{2}\)-sensitized emulsion explosive was invented to solve these problems. Experimental results show that \(\hbox {MgH}_{2}\) can effectively reduce the problem of pressure desensitization. In this paper, the factors which influence the pressure desensitization of two types of emulsion explosives are studied, and resistance to this phenomenon of \(\hbox {MgH}_{2}\)-sensitized emulsion explosives is discussed.

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Acknowledgments

This work was supported by National Fund of Nature Science of China (NO.51374189) and Natural Science Foundation of Anhui Education Department, and the authors would like to thank these foundations for the financial support.

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Authors and Affiliations

  1. School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China

    Y. F. Cheng, S. L. Yan & R. Liu

  2. Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China

    H. H. Ma & Z. W. Shen

Authors
  1. Y. F. Cheng
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  2. S. L. Yan
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  3. H. H. Ma
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  4. Z. W. Shen
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  5. R. Liu
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Corresponding author

Correspondence to H. H. Ma.

Additional information

Communicated by F. Zhang and H. Kleine.

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Cheng, Y.F., Yan, S.L., Ma, H.H. et al. A new type of functional chemical sensitizer \(\hbox {MgH}_{2}\) for improving pressure desensitization resistance of emulsion explosives. Shock Waves 26, 213–219 (2016). https://doi.org/10.1007/s00193-015-0585-0

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  • DOI: https://doi.org/10.1007/s00193-015-0585-0

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