Thermal performance and decomposition kinetics of RDX/AP/SiO2 intermolecular explosive

Article
  • 5 Downloads

Abstract

The thermal performance of the intermolecular explosive (IMX) prepared from RDX, ammonium perchlorate (AP), and SiO2 with different component ratio was studied by TG and DSC. The decomposition time of RDX and AP in the IMX was confirmed by TG–FTIR–MS. Regardless of the SiO2/AP ratio, the decomposition heat of the IMX reached maximum when the mass ratio of SiO2/RDX was around 0.1. When the SiO2/RDX mass ratio was kept at 0.1, the decomposition heat of the IMX firstly increased and then decreased with rising AP content. The kinetic parameters of three different IMXs were measured. It was found that in the IMX, RDX and AP decomposed at the same time, and the oxygen released from AP allowed the RDX to decompose more thoroughly in the redox reaction. According to TG–FTIR–MS, the IMX had superior thermal performance than the physical mixture of RDX and AP. The IMX with zero oxygen balance had maximum decomposition activation energy.

Keywords

Intermolecular explosive Decomposition Kinetics TGA DSC TG–FTIR–MS 

Notes

Acknowledgements

This work was supported by NSAF (No. U1630142).

References

  1. 1.
    Li G, Liu Y, Liu M, Chun C, Luo Y. Preparation and characterization of Hexahydro-1,3,5-trinitro-1,3,5-triazine/ammonium perchlorate intermolecular explosives. Propellants Explos Pyrotech. 2016;41:641–4.CrossRefGoogle Scholar
  2. 2.
    Zheng J, Chen R, Li G, Sun J, Luo Y. Study on thermal decomposition of RDX/AP intermolecular explosive. T B Inst Tech. 2011;31(4):482–5.Google Scholar
  3. 3.
    Zhao F, Chen P, Li S. Effect of ballistic modifiers on thermal decomposition characteristics of RDX/AP/HTPB propellant. Thermochim Acta. 2004;416(1–2):75–8.CrossRefGoogle Scholar
  4. 4.
    Zheng B, Luo G, Shu Y, Wang P. Research status and prospect of melt-cast explosive. Chem Ind Eng Prog. 2013;32(6):1341–6.Google Scholar
  5. 5.
    Hammer OJ, Kristiansen JD, Gjersoe R, Berg A, Halvorsen T, Smith KT, Nevstad GO. RDX and HMX with reduced sensitivity towards shock initiation–RS–RDX and RS-HMX. Propellants Explos Pyrotech. 2008;33(1):20–4.CrossRefGoogle Scholar
  6. 6.
    Chen R, Ll G, Sun J, Luo Y, Zheng J. Preparation of RDX/vAP/SiO2 composite energetic materials by sol–gel method. J Solid Rocket Technol. 2010;6:016.Google Scholar
  7. 7.
    Sun Y, Ren H, Jiao Q. Comparison of thermal behaviors and decomposition kinetics of NEPE propellant before and after storage. J Therm Anal Calorim. 2018;131(1):101–11.CrossRefGoogle Scholar
  8. 8.
    Thanki JD, Parsania PH. Dynamic DSC curing kinetics and thermogravimetric study of epoxy resin of 9,9′-bis(4-hydroxyphenyl)anthrone-10. J Therm Anal Calorim. 2017;130(3):2145–56.CrossRefGoogle Scholar
  9. 9.
    Venkatesh M, Ravi P, Tewari S. Isoconversional kinetic analysis of decomposition of nitroimidazoles: Friedman method vs Flynn–Wall–Ozawa method. J Phys Chem A. 2013;117(40):10162–9.CrossRefGoogle Scholar
  10. 10.
    Zhu J, Xie X, Luo W, Di Y. Thermal decomposition kinetics of emulsion explosive containing ferrous ion. Explos Mater. 2011.Google Scholar
  11. 11.
    Jiao QJ, Zhu YL, Xing JC, et al. Thermal decomposition of RDX/AP by TG–DSC–MS–FTIR. J Therm Anal Calorim. 2014;116(3):1125–31.CrossRefGoogle Scholar
  12. 12.
    Jin M, Wang G, Deng J, et al. Preparation and properties of NC/RDX/AP nano-composite energetic materials by the sol–gel method. J Sol–Gel Sci Technol. 2015;76(1):58–65.CrossRefGoogle Scholar
  13. 13.
    Zeman S, Shu Y, Friedl Z, et al. Thermal reactivity of some nitro-and nitroso-compounds derived from 1, 3, 5, 7-tetraazabicyclo [3.3. 1] nonane at contamination by ammonium nitrate. J Hazard Mater. 2005;121(1):11–21.CrossRefGoogle Scholar
  14. 14.
    Zhang L. Development and present situation of research on intermolecular explosive. Mech Manage Dev. 2008;23(3):57–8.Google Scholar
  15. 15.
    Liu Z, Yin C, Kong Y, Zhao F, Luo Y, Xiang H. The thermal decomposition of ammonium perchlorate. Energy Mater. 2000;1(1):785–96.Google Scholar
  16. 16.
    Fan X, Li J, Fu X, Wang H. Thermal decompositions of ammonium perchlorate of various granularities. Acta Chim Sinica. 2009;67(1):39–44.Google Scholar
  17. 17.
    Liu Z, Yin C, Kong Y, Zhao F, Luo Y, Zhou H. Interaction of ammonium perchlorate with HMX and RDX during decomposition. J Propuls Technol. 2000;21(6):70–3.Google Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingPeople’s Republic of China

Personalised recommendations