Synthesis, characterisation, thermal and explosive properties of 4,6-dinitrobenzofuroxan salts

Mehilal,; Sikder, A. K.; Pawar, Suman; Sikder, Nirmala

doi:10.1016/s0304-3894(01)00344-2

Cited by 28 publications

(10 citation statements)

References 2 publications

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“…The pressure exponent (n) was determined using SSBR data at different pressures, by plotting a curve of log e (burning rate) vs. log e (pressure) and calculating the pressure exponent from the slope of the curve [29]. The data obtained are listed in Table 4.…”

Section: Effect Of Nano-and Micron-sized Mno 2 On the Pressure Exponementioning

confidence: 99%

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Kshirsagar

Jain

Bhandarkar

et al. 2017

Cent. Eur. J. Energ. Mater.

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Various propellant compositions were prepared incorporating fully characterized nano-sized manganese dioxide, from 0.25 wt.% to 1.0 wt.%, in HTPB/AP/Al-based composite propellant formulations having 86 wt.% of solid loading, and its effects on the viscosity build-up, thermal, mechanical and ballistic properties were studied. The findings revealed that on increasing the percentage of nano-MnO2 in the composition, there was an increase in the end of mix viscosity, the modulus and tensile strength, while the elongation decreased accordingly. The data on the thermal properties revealed a reduction in the decomposition temperature of ammonium perchlorate (AP) as well as of the formulations based on it. The data on the ballistic properties revealed that there is an enhancement in the burning rate from 6.11 mm/s (reference composition) to 7.54 mm/s at 6.86 MPa (a 23% enhancement in the burning rate) and an increase in the pressure exponent from 0.35 (reference composition) to 0.42 with 1.0 wt.% nano-MnO2.

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Section: Effect Of Nano-and Micron-sized Mno 2 On the Pressure Exponementioning

confidence: 99%

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Kshirsagar

Jain

Bhandarkar

et al. 2017

Cent. Eur. J. Energ. Mater.

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“…Pressure Exponent (n) The pressure exponent (n) was determined using SSBR data at different pressures by plotting a curve of ln r b vs. ln p and calculated the pressure exponent from the slope of the curve 15 and data obtained are presented in Table 3. It is clear from the table that pressure exponent of the reference composition was found to be 0.35 whereas on addition of nano Cr 2 O 3 and micron sized Cr 2 O 3 , the pressure exponent value marginally increases from 0.35 to 0.53 and 0.35 to 0.48, respectively at 1 wt % level.…”

Section: Effect Of Nano and Micron Sized Cr 2 O 3 Onmentioning

confidence: 99%

Effect of Nano Cr2O3 in HTPB/AP/Al Based Composite Propellant Formulations

et al. 2016

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Different compositions have been prepared by incorporating nano sized chromium oxide from 0.25 % to 1 % in HTPB/AP/Al based composite propellant formulation having 86% of solid loading and studied its effect on viscosity build-up, thermal, mechanical and ballistic properties. The findings reveal that on increasing the percentage of nano Cr 2 O 3 in the composition, there is an increase in end of mix viscosity, elastic modulus and tensile strength while elongation decreases accordingly. The data on thermal properties envisage the reduction in thermal decomposition temperature of ammonium perchlorate as well as formulations based on HTPB/AP/Al. The data on ballistic properties reveal that there is an enhancement in burning rate from 6.11 mm/s to 7.88 mm/s at 6.86 MPa, however, marginal increase in pressure exponent ('n' values) from 0.35 to 0.53 with 1 wt % of nano Cr 2 O 3 was observed in comparison to reference composition without chromium oxide.

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“…The life of the propellant is generally 20−30 years. After the expiration date, 2 the performance of propellants cannot meet the requirements of use and must be processed in time. 3 Since the double-base propellant contains some nitroglycerin and the compatibility between nitrocellulose and nitroglycerin results in poor performance, 4,5 the direct preparation of this double-base propellant into an industrial explosive leads to a disadvantage of incomplete detonation.…”

Section: Introductionmentioning

confidence: 99%

Application of Supercritical CO₂ Foaming Technology for Waste Double-Base Propellants

et al. 2021

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This paper used a supercritical CO2 batch foaming process to treat a waste SP double-base propellant, which is a type of double-base propellants containing 58.6% nitrocellulose, 40.0% nitroglycerin, 0.8% centralite, and 0.5% vaseline, to solve a problem of poor stability of industrial explosives directly prepared by the propellant. Experiments show that this process can produce dense pores inside the SP double-base propellant. With the increase of the pressure of supercritical CO2, the number of pores inside the foamed SP double-base propellant increased, and these pores served as hotspots in the detonation reaction. An increased number of hotspots improved the detonation stability of the perfusion explosive. During the explosion, the energy of the perfusion explosive with the foamed SP double-base propellant was released more completely, so the shock wave energy and bubble energy of the explosive gradually increased with the increase of pressure. Therefore, the supercritical CO2 foaming process can promote the treatment technology of waste double-base propellants and can optimize the detonation performance of perfusion explosives by increasing the pressure of supercritical CO2.

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Synthesis, characterisation, thermal and explosive properties of 4,6-dinitrobenzofuroxan salts

Cited by 28 publications

References 2 publications

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Effect of Nano Cr2O3 in HTPB/AP/Al Based Composite Propellant Formulations

Application of Supercritical CO₂ Foaming Technology for Waste Double-Base Propellants

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Synthesis, characterisation, thermal and explosive properties of 4,6-dinitrobenzofuroxan salts

Cited by 28 publications

References 2 publications

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Studies on Effect of Nano-MnO2 in HTPB-based Composite Propellant Formulations

Effect of Nano Cr2O3 in HTPB/AP/Al Based Composite Propellant Formulations

Application of Supercritical CO2 Foaming Technology for Waste Double-Base Propellants

Contact Info

Product

Resources

About

Application of Supercritical CO₂ Foaming Technology for Waste Double-Base Propellants