Thermal decomposition and shelf-life of PETN and PBX based on PETN using thermal methods

Toan, Nguyen Trung; Nhan, Phan Duc; Phuong, Vo Hoang

doi:10.15625/2525-2518/56/3/11154

Cited by 5 publications

(13 citation statements)

References 10 publications

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“…where T P is the temperature peak of the DSC curve at linear heating rate β=dT/dt . Kissinger method assumed that the product n(1‐α) n−1 is independent of β . Therefore, the following expression is derived:

true \frac{d ([], l, n, (\frac{β}{T_{P}^{2}}))}{d ((), \frac{1}{T_{P}})} = - \frac{E_{a}}{R}

…”

Section: Calculation Of Kinetic Parametersmentioning

confidence: 99%

Study on Thermal Characteristics of TNT Based Melt‐Cast Explosives

Chen

Hwang

et al. 2019

Propellants Explo Pyrotec

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Four series of TNT based melt cast explosives were prepared by mixing RDX, CL‐20, FOX‐7, and TKX‐50 with TNT in different mass ratios. The compatibility of these composition explosives was evaluated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) according to the STANAG 4147 standard. Furthermore, the DSC and TGA data were also used to calculate the activation energies by the Kissinger and Ozawa methods. The experimental results indicated that the TNT/FOX‐7 composition explosives had good compatibility, whereas the TNT/CL‐20 composition explosives had poor compatibility. The TNT/RDX and TNT/TKX‐50 composition explosives at the mass ratios of 50 : 50, 40 : 60, 30 : 70, 20 : 80 and 10 : 90 had good compatibility. Furthermore, the decomposition activation energy of TNT/FOX‐7 composition explosives increased with increasing FOX‐7 content. Under the compatible condition, the decomposition activation energy of TNT/RDX composition explosives also increased with increasing RDX content, but the decomposition activation energy of TNT/TKX‐50 composition explosives decreased with increasing TKX‐50 content.

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true \frac{d ([], l, n, (\frac{β}{T_{P}^{2}}))}{d ((), \frac{1}{T_{P}})} = - \frac{E_{a}}{R}

…”

Section: Calculation Of Kinetic Parametersmentioning

confidence: 99%

Study on Thermal Characteristics of TNT Based Melt‐Cast Explosives

Chen

Hwang

et al. 2019

Propellants Explo Pyrotec

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“…The electronic pressure transducer connected to a computer allows for the determination of the volume of released gas (at standard temperature and pressure (STP)). [12,17] The schematic diagram of the VST apparatus is provided in figure 1.…”

Section: Preparation Of Pbxsmentioning

confidence: 99%

“…Based on the TG/DTG curves at various heating rates (4, 6, 8, and 10 K.min -1 ), the Kissinger and the Ozawa methods [18,19] were applied to determine the activation energy of the decomposition reactions of RDX, PBXR80-1, PBXR80-2, and PBXR85. By the Kissinger method, the values of activation energy are determined by the (1) [10,12,18,20] :…”

Section: The Calculation Of the Thermal Decomposition Kinetic Parametersmentioning

confidence: 99%

“…On the other hand, the Ozawa method determines the values of activation energy from a slope (2) [10,12,[19][20][21] :…”

Section: The Calculation Of the Thermal Decomposition Kinetic Parametersmentioning

confidence: 99%

“…RDX). [9,10,12] However, the thermal decomposition kinetic parameters of PBXs and single explosives can be evaluated by the Arrhenius equation according to different methods. [10,11,[13][14][15] Based on these parameters, the shelf-life of explosives can be calculated or predicted.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal decomposition behavior and shelf‐life of polymer‐bonded explosives and hexogen ‐ An experimental study

Toan

Nhan

Hung

et al. 2018

Vietnam Journal of Chemistry

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The kinetic parameters of thermal decomposition reactions are important in predicting the potential of energetic material systems for the thermal explosion. In this study, the thermal decomposition behaviors of three polymer‐bonded explosive samples based on hexogen and nitrocellulose were evaluated and compared to the hexogen sample. The results show that the binder based on nitrocellulose has negatively affected on the thermal stability of polymer‐bonded explosives. The activation energy of the polymer‐bonded explosive was reduced by approximate 25 % compared to that of hexogen. Moreover, while hexogen exhibited an estimated shelf‐life of 70 years, the polymer‐bonded explosives could remain their safety and explosion properties for only around 45 years. Finally, increasing the nitrocellulose content from 3.75 to 6.67 wt.% reduced the thermal stability and shelf‐life of the polymer‐bonded explosive.

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Review of thermal decomposition, kinetics parameters and evolved gases during pyrolysis of energetic materials using different techniques

El‐Sayed

2022

Journal of Analytical and Applied Pyrolysis

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Thermal decomposition and shelf-life of PETN and PBX based on PETN using thermal methods

Cited by 5 publications

References 10 publications

Study on Thermal Characteristics of TNT Based Melt‐Cast Explosives

Study on Thermal Characteristics of TNT Based Melt‐Cast Explosives

Thermal decomposition behavior and shelf‐life of polymer‐bonded explosives and hexogen ‐ An experimental study

Review of thermal decomposition, kinetics parameters and evolved gases during pyrolysis of energetic materials using different techniques

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