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Volume 38 Issue 3
Jun 2024
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Chinese Journal of High Pressure Physics  > 2024  >  38(3): 035201.
YANG Nian, MA Teng, GUO Guangfei, WU Sanzhen, XIA Yu, HUANG Yinsheng, LIU Dabin, XU Sen. Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824
Citation: YANG Nian, MA Teng, GUO Guangfei, WU Sanzhen, XIA Yu, HUANG Yinsheng, LIU Dabin, XU Sen. Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824
shu

Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants

doi: 10.11858/gywlxb.20230824

  • School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

  • Received Date: 20 Dec 2023
  • Rev Recd Date: 17 Mar 2024
    • Available Online: 25 May 2024
  • Issue Publish Date: 03 Jun 2024
    Abstract
  • In order to investigate the effect of HMX content on the impact sensitivity and non-shock initiation reaction characteristics of PBT based propellants, BAM impact sensitivity tests, friability tests and Susan tests were carried out. The experimental results show that with the increase of HMX content, the characteristic drop height of PBT based propellants at 50% explosion probability (H50) decreases, indicating that the impact sensitivity increases with higher HMX content. In friability tests, the critical non-shock initiation velocities for the PBT based propellants with the HMX mass fraction of 0, 5%, 10%, and 15% are 168, 147, 136, and 131 m/s, respectively, showing a decline in the critical non-shock initiation velocity as HMX content rises. In Susan tests, four different kinds of PBT based propellants react as explosion or partial detonation at velocities range of 120 m/s to 300 m/s. The PBT based propellant with the HMX mass fraction of 10% exhibits more intense reactions compared to the other three PBT based propellants at the same velocity.

     

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