Effects of MgH 2 /Mg(BH 4 ) 2  Powders on the Thermal Decomposition Behaviors of 2,4,6‐Trinitrotoluene (TNT) | Zendy

Yao Miao | Zendy; Chen Liping | Zendy; Peng Jinhua | Zendy

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Effects of MgH 2 /Mg(BH 4 ) 2 Powders on the Thermal Decomposition Behaviors of 2,4,6‐Trinitrotoluene (TNT)

Author(s) -

Yao Miao,

Chen Liping,

Peng Jinhua

Publication year - 2015

Publication title -

propellants, explosives, pyrotechnics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.56

H-Index - 65

eISSN - 1521-4087

pISSN - 0721-3115

DOI - 10.1002/prep.201400112

Subject(s) - trinitrotoluene , differential scanning calorimetry , thermal decomposition , decomposition , exothermic reaction , calorimetry , materials science , activation energy , chemistry , analytical chemistry (journal) , chemical engineering , nuclear chemistry , thermodynamics , organic chemistry , physics , explosive material , engineering

The thermal properties of 2,4,6‐trinitrotoluene (TNT), TNT/MgH 2 , and TNT/Mg(BH 4 ) 2 were investigated by differential scanning calorimetry (DSC) and accelerating rate calorimetry (ARC). The results show that addition of MgH 2 or Mg(BH 4 ) 2 to TNT has a great effect on the DSC decomposition process. The exothermic decomposition peak of TNT disappeared and was replaced by a slow exothermic trend in the curves of both TNT/MgH 2 and TNT/Mg(BH 4 ) 2 . The kinetic triplet of TNT formulations were calculated by ARC data. The results show that TNT/MgH 2 and TNT/Mg(BH 4 ) 2 have lower onset temperatures, apparent activation energies ( E ) and frequency factors ( A ) than neat TNT. A change of the TNT decomposition mechanism is also discussed.

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