Notice on the organization of advanced research class on high-pressure science and new materials of engineering knowledge of professional and technical personnel Notice on the organization of advanced research class on high-pressure science and new materials of engineering knowledge of professional and technical personnel
Volume 39 Issue 3
Mar 2025
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Chinese Journal of High Pressure Physics  > 2025  >  39(3): 031302.
YU Yi, ZHANG Lei, JIANG Shengli, CHEN Jun. Decomposition of TATB at High Temperature Using Ab Initio Molecular Dynamics[J]. Chinese Journal of High Pressure Physics, 2018, 32(1): 010106. doi: 10.11858/gywlxb.20170621
Citation: LI Tianhao, WU Hongbo, WANG Quan, HUANG Wenyao, SUN Yanchen, NIU Caoyuan, HUANG Guoshu, YE Ziyang. Effect of Water Content on the Performance of Porous Granular Ammonium Nitrate On-Site Mixed Ammonium Amine Explosive[J]. Chinese Journal of High Pressure Physics, 2025, 39(3): 031302. doi: 10.11858/gywlxb.20240885
shu

Effect of Water Content on the Performance of Porous Granular Ammonium Nitrate On-Site Mixed Ammonium Amine Explosive

doi: 10.11858/gywlxb.20240885
  • 1.

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

  • 2.

    Zhongan United Coal Chemical Co., Ltd., Huainan 232000, Anhui, China

  • Received Date: 06 Sep 2024
  • Rev Recd Date: 11 Nov 2024
  • Issue Publish Date: 05 Mar 2025
    Abstract
  • In order to study the effect of water content on the performance of porous granular ammonium nitrate on-site mixed ammonium amine explosives, five groups of on-site mixed ammonium amine explosives with different water contents were prepared by controlling the water content in the aqueous phase. We used scanning electron microscope to observe the internal microstructure of porous granular ammonium nitrate, and Brinkley-Wilson method to carry out theoretical calculations on the heat of detonation and detonation velocity of the explosives. The solubility of porous granular ammonium nitrate at different water contents was tested, and the viscosity of the ammonium amine explosive matrix, the immersion conductivity and the detonation velocity were tested. The results show that with the increase of water mass fraction from 9% to 17%, the mixing homogeneity of ammonium amine explosive matrix increased, the initial viscosity decreases from 218539 mPa·s to 99443 mPa·s; the conductivity of the explosive immersed in water with different water content for 3 h first decreased from 1.416 mS/cm to 1.234 mS/cm, and then increases to 2.600 mS/cm; the theoretical detonation velocity decreases from 4943 m/s to 4716 m/s; the actual detonation velocity is affected by the content of solid ammonium nitrate, first increasing from 3376 m/s to 3676 m/s, and then decreasing to 3631 m/s. In actual production, the mass fraction of water in on-site mixed ammonium amine explosives should be controlled at approximately 13%. At this water content, the explosives exhibit optimal water resistance, and achieve a relatively high actual detonation velocity.

     

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