scholarly journals NON-ISOTHERMAL KINETICS OF SOLID-PHASE DECOMPOSITION OF MIXTURES OF OCTOGEN WITH NITRO-NITROZOAMINES

2021 ◽  
pp. 193-198
Author(s):  
В.О. Попов ◽  
В.Н. Комов ◽  
Е.М. Попенко ◽  
А.В. Сергиенко
Keyword(s):  
Thermal Decomposition ◽  
Solid Phase ◽  
Activation Parameters ◽  
Decomposition Reaction ◽  
Isothermal Kinetics ◽  
Phase Decomposition ◽  
Formal Kinetic ◽  
Lower Activation ◽  
Kinetics Of ◽  
Derivatives Of

Определены формально-кинетические характеристики термораспада нитро-нитрозоаминов и их смесей с октогеном. Реакция разложения нитрозоаналогов октогена и нитро-нитрозопроизводных тетраазадекалина характеризуется меньшей энергией активации по сравнению с октогеном, и протекает с большей скоростью. Проведен анализ активационных параметров термораспада смесей, установлено активирующее влияние нитрозопроизводных тетраазадекалина на разложение октогена. The formal-kinetic characteristics of the thermal decomposition of nitro-nitrosoamines and their mixtures with HMX have been determined. The decomposition reaction of nitroso analogs of HMX and nitro-nitroso derivatives of tetraazadecalin is characterized by a lower activation energy compared to HMX, and proceeds at a higher rate. The analysis of the activation parameters of the thermal decomposition of the mixtures was carried out, the activating effect of the nitroso derivatives of tetraazadecalin on the decomposition of HMX was established.

scholarly journals Thermal Decomposition Kinetics of Bis-Gem-Dinitroethyl Derivatives of N-Nitraminoacetic Acid

2020 ◽  
pp. 167-174
Author(s):  
Lyudmila А. Kruglyakova ◽  
Rudolf S. Stepanov ◽  
Konstantin V. Pekhotin ◽  
Oksana А. Golubtsova
Keyword(s):  
Thermal Decomposition ◽  
Activation Parameters ◽  
Decomposition Reaction ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Chemical Mechanism ◽  
Initial Reaction ◽  
Mechanism Of Decomposition ◽  
Kinetics Of ◽  
Derivatives Of

Thermal decomposition kinetics of bis-gem-dinitroethyl substituted compounds based on N-nitraminoacetic acid is studied. Structural and kinetic patterns are revealed and a chemical mechanism of decomposition reaction is established, including the primary homolysis of C-NO2 bond in the gem-dinitroethyl fragment. The activation parameters are defined for the initial reaction. The reactivity of the studied compounds was analyzed and quantitative correlations between the logarithms of the rate constant, the activation energies and the steric constants of substituents in the gem-dinitroethyl group were found

Thermal Decomposition Kinetics of Flame Retardant Polybutylene Terephthalate Matrix Composites

2019 ◽  
Vol 956 ◽  
pp. 181-191
Author(s):  
Jian Lin Xu ◽  
Bing Xue Ma ◽  
Cheng Hu Kang ◽  
Cheng Cheng Xu ◽  
Zhou Chen ◽  
...  
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Flame Retardant ◽  
Mass Loss Rate ◽  
Decomposition Reaction ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Heating Rates ◽  
Polybutylene Terephthalate ◽  
Kinetics Of

The thermal decomposition kinetics of polybutylene terephthalate (PBT) and flame-retardant PBT (FR-PBT) were investigated by thermogravimetric analysis at various heating rates. The kinetic parameters were determined by using Kissinger, Flynn-Wall-Ozawa and Friedman methods. The y (α) and z (α) master plots were used to identify the thermal decomposition model. The results show that the rate of residual carbon of FR-PBT is higher than that of PBT and the maximum mass loss rate of FR-PBT is lower than that of PBT. The values of activation energy of PBT (208.71 kJ/mol) and FR-PBT (244.78 kJ/mol) calculated by Kissinger method were higher than those of PBT (PBT: 195.54 kJ/mol) and FR-PBT (FR-PBT: 196.00 kJ/mol) calculated by Flynn-Wall-Ozawa method and those of PBT and FR-PBT (PBT: 199.10 kJ/mol, FR-PBT: 206.03 kJ/mol) calculated by Friedman methods. There is a common thing that the values of activation energy of FR-PBT are higher than that of PBT in different methods. The thermal decomposition reaction models of the PBT and FR-PBT can be described by Avarami-Erofeyev model (A1).

Evaluation of isothermal kinetics of the thermal decomposition of guanidine nitrate in constant volume

2018 ◽  
Vol 36 (4) ◽  
pp. 412-423 ◽  
Author(s):  
Dong Ze ◽  
Chen Yingying ◽  
Chen Liping ◽  
Chen Wanghua ◽  
Zhang Jun ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Constant Volume ◽  
Isothermal Kinetics ◽  
Guanidine Nitrate ◽  
Kinetics Of

Non-isothermal kinetics of solid phase cyclodehydration of polymic acids

1988 ◽  
Vol 30 (5) ◽  
pp. 951-957 ◽  
Author(s):  
L.A. Shibayev ◽  
N.G. Stepanov ◽  
Yu.N. Sazanov
Keyword(s):  
Solid Phase ◽  
Isothermal Kinetics ◽  
Kinetics Of
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