Diaminofurazan (DAF): Thermolysis and evaluation as ballistic modifier in double base propellant

Talawar, M. B.; Nair, J. K.; Pundalik, S.M.; Satpute, R. S.; Venugopalan, S.

doi:10.1016/j.jhazmat.2006.01.047

Cited by 14 publications

(3 citation statements)

References 13 publications

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“…The potential of diaminoglyoxime (DAG) [117] and diaminofurazan (DAF) [118] as a ballistic modifier for RDX incorporated double base propellant formulations was evaluated by determining strand-burning rates experimentally. The effect of DAG and DAF on sensitivity, compatibility and mechanical properties of propellant formulations was also investigated [117,118].…”

Section: Lead-free Ballistic Modifiers: Environmentally More Compatibmentioning

confidence: 99%

Environmentally compatible next generation green energetic materials (GEMs)

Talawar

Sivabalan

Mukundan

et al. 2009

Journal of Hazardous Materials

646

391

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Section: Lead-free Ballistic Modifiers: Environmentally More Compatibmentioning

confidence: 99%

Environmentally compatible next generation green energetic materials (GEMs)

Talawar

Sivabalan

Mukundan

et al. 2009

Journal of Hazardous Materials

646

391

View full text Add to dashboard Cite

“…Various explosives such as 3-amino-5-1,2,4-triazole, 3-nitro-1,2,4-trazol-5-one, nitroguanidine and triaminotrinitrobenzene have been reported as coolants [16][17][18]. Other prospective burning rate suppressants including diaminoglyoxime, diaminofurazan, biuret, urea, melamine, oxamide and azodicarbonamide have been extensively studied as well [8,12,[19][20][21][22]. Amide-based compounds are considered as the most effective and are frequently employed as coolants in practical use of composite propellants.…”

mentioning

confidence: 99%

“…At present, the behavior of various catalysts as ballistic modifiers in the thermal decomposition of AP-based propellant has been extensively studied [23,[47][48][49]. Nevertheless, only few studies dealing with the effect of burning rate suppressants on the thermal properties of solid propellants have been carried out [12,16,19,20]. Furthermore, to the best of our knowledge, there was no available report describing the influence of amides based compounds (oxamide and azodicarbonamide) on the thermal decomposition of composite solid propellants.…”

mentioning

confidence: 99%

Thermal behavior and decomposition kinetics of composite solid propellants in the presence of amide burning rate suppressants

Trache

Maggi

Palmucci

et al. 2018

J Therm Anal Calorim

120

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The employment of burning rate suppressants in the solid rocket propellant formulation is long known. Different research activities have been conducted to well understand the mechanism of suppression, but literature about the action of oxamide (OXA) and azodicarbonamide (ADA) on the thermal decomposition of composite propellant is still scarce. The focus of this study is on investigating the effect of burning rate suppressants on the thermal behavior and decomposition kinetics of composite solid propellants. Thermogravimetric analysis (TG) and differential thermal analysis (DTA) have been used to identify the changes in the thermal and kinetic behavior of coolant-based propellants. Two main decomposition stages were observed. It was found that OXA played an inhibition effect on both stages, whereas the ADA acts as a catalyst in the first stage and as coolant in the second one. The activation energy dependent on the conversion rate was estimated by two model-free integral methods: Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) based on the TG data obtained at different heating rates. The mechanism of action of coolants on the decomposition of solid propellants was confirmed by the kinetic investigation as well.

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Effect of amide-based compounds on the combustion characteristics of composite solid rocket propellants

Trache

Maggi

Palmucci

et al. 2019

Arabian Journal of Chemistry

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Oxamide (OXA) and azodicarbonamide (ADA) are among the known burning rate suppressants used in composite solid rocket propellants. Much research has been carried out to understand mechanism of suppression but literature about the action of OXA and ADA on the combustion characteristics of propellant is still scarce. Here, a systematic study on coolant-based propellants has been undertaken spanning from thermal analyses of ingredients to a variety of burning processes of the corresponding propellants. Thermal gravimetric analysis and differential thermal analysis on individual coolants are carried out to study their behaviour with temperature. It was noticed that the thermal decomposition of OXA exhibits only endothermic effects, whereas that of ADA presents both endothermic and exothermic effects. Successive experiments on solid propellant looking at burning rate characterization, condensed combustion product collection and visualization, pressure deflagration limit and thermochemical analysis gave a greater insight and enabled better understanding of the action of coolants during combustion. It is proposed that OXA and ADA are acting on both the condensed and gas phases. Also, the nature of coolant is a key parameter, which affects the burning rate pressure index. Increase of agglomerate size and of pressure deflagration limit was obtained in the coolant-based propellants, confirming the trend given in the literature

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Diaminofurazan (DAF): Thermolysis and evaluation as ballistic modifier in double base propellant

Cited by 14 publications

References 13 publications

Environmentally compatible next generation green energetic materials (GEMs)

Environmentally compatible next generation green energetic materials (GEMs)

Thermal behavior and decomposition kinetics of composite solid propellants in the presence of amide burning rate suppressants

Effect of amide-based compounds on the combustion characteristics of composite solid rocket propellants

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