Preparation and Properties of 1, 3, 5, 7-Tetranitro-1, 3, 5, 7-Tetrazocane-based Nanocomposites

Shi, Xin; Wang, Jingyu; Li, Xiaodong; An, Chongwei; Wang, Jiang; Ji, Wei

doi:10.14429/dsj.65.7843

Cited by 12 publications

(5 citation statements)

References 15 publications

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“…In the Kissinger method, according to equation 1, activation energy (Eα) is calculated from the slope of linear representation of ln (β/T 2 ) against 1/T. β and T are heating rate and the temperature at conversion degree (α) respectively 30,32,33 .…”

Section: Methods For Determination Of the Activation Energy And Half-...mentioning

confidence: 99%

Synthesis and Thermal Decomposition Kinetics of Epoxy Poly Glycidyl Nitrate as an Energetic Binder

Vala

Bayat

2020

Def. Sc. Jl.

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An energetic binder epoxy poly glycidyl nitrate (e-PGN) with a molecular weight of about 1244 gr/mol was synthesised via end modified poly glycidyl nitrate (PGN) is presented in the paper. This structure was characterised by the number of epoxy groups, infrared spectroscopy, and nuclear magnetic resonance. The thermal degradation behavior of e-PGN was studied by thermo gravimetric analysis (TG) and differential scanning calorimetry (DSC) under nitrogen atmosphere at different heating rates. The glass transition temperature (Tg) was measured to determine the compatibility of energetic plasticizer with the binder in the mixture of plasticizer/binder and compared with the results of e-PGN, and initial decomposition temperature in e-PGN was studied using the DSC method. The DSC results showed that the glass transition temperature of a mixture of 20 % Bu-NENA/e-PGN mixture (Tg = −56 °C) was lower than e-PGN (Tg = −37.78 °C) that shows the most compatible plasticizer is Bu-NENA. The activation energy of degradation e-PGN and e-PGN-20% Bu-NENA were calculated with DSC by the model-free methods and compared with the results of AKTS software in version 3.51(2013-07-10). The activation energy of exothermic decomposition of the e-PGN and e-PGN-20% Bu-NENA were calculated by the Kissinger, Flynn–Wall–Ozawa, Starink, and AAdvanced kinetics and technology solutions (Friedman) methods. Finally, the half-life prediction of the e-PGN and e-PGN-20% Bu-NENA were investigated.

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Section: Methods For Determination Of the Activation Energy And Half-...mentioning

confidence: 99%

Synthesis and Thermal Decomposition Kinetics of Epoxy Poly Glycidyl Nitrate as an Energetic Binder

Vala

Bayat

2020

Def. Sc. Jl.

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“…The study showed that the hygroscopicity of the composite was significantly reduced, and the average relative moisture absorption rate of the composite was 46%, which is 3% lower than that of the composite prepared by the liquid deposition method, and the mass fraction of the coating layer is reduced by 76%, indicating that the spray drying has a better modification effect. Shi et al [23][24][25][26][27] prepared HMX-based, RDX-based, and CL-20-based nanocomposite energetic microspheres using fluororubber F2602, polyurethane Estane5703 and collodion NC as binders through spray drying technology. The results showed that the impact sensitivity of these composites is effectively reduced.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a series of high-energy and low-sensitivity composites with different desensitizers

Zhang

et al. 2022

New J. Chem.

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“…The energy content of these compounds is derived mostly from their high positive heats of formation, that is, the energy is correlated to the number of nitrogen atoms in the compound. This is unlike traditional HEDMs such as 2,4,6‐trinitrotoluene (TNT), 1,3,5‐trinitro‐1,3,5‐triazinane (RDX), and 1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocane (HMX) where the energies are derived from the oxidation of the carbon backbone . Triazole‐ and tetrazole‐based energetic materials possess unique characteristics in that they combine a nitrogen‐rich moiety with a substituent that can be tuned toward desirable properties of high densities, good thermal stabilities, and low sensitivities …”

Section: Introductionmentioning

confidence: 99%

Heats of formation and thermal stability of substituted 1,1′‐Azobis(tetrazole) compounds with an extended nitrogen chain

Pimienta

Patkowski

2018

Int J of Quantum Chemistry

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The molecular structures of 1,1′‐Azobis(tetrazole) (N10) and monosubstituted compounds involving F, CH3, CN, NH2, OH, OCH3, N3, NF2, NO2, and CH2NO2 groups are investigated using density functional theory. The heats of formation of these compounds are investigated using ab initio composite methods. Intrinsic reaction coordinate calculations are performed to determine the energies along the decomposition pathways. The optimized geometries of the N10 compounds indicate planar configurations consisting of aromatic nitrogen–nitrogen and carbon–nitrogen bonds. The stability and energy content of the substituted compounds are highly correlated with the nature of the substituents. Electron‐donating groups reduce the heats of formation but increase the exothermicity of the decomposition. The decomposition of the N10 compounds is classified into two general pathways: (1) a scheme involving straight‐up decomposition and (2) a scheme involving functional rearrangement. Compounds undergoing decomposition pathway (1) are more exothermic with lower rate‐determining activation barriers than those undergoing the latter pathway (2).

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Preparation and Properties of 1, 3, 5, 7-Tetranitro-1, 3, 5, 7-Tetrazocane-based Nanocomposites

Cited by 12 publications

References 15 publications

Synthesis and Thermal Decomposition Kinetics of Epoxy Poly Glycidyl Nitrate as an Energetic Binder

Synthesis and Thermal Decomposition Kinetics of Epoxy Poly Glycidyl Nitrate as an Energetic Binder

Preparation and characterization of a series of high-energy and low-sensitivity composites with different desensitizers

Heats of formation and thermal stability of substituted 1,1′‐Azobis(tetrazole) compounds with an extended nitrogen chain

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