Studies on RDX Influence on Performance Increase of Triple Base Propellants

Sanghavi, R. R.; Khire, V. H.; Chakraborthy, T. K.; Singh, Amritpal

doi:10.1002/prep.200600044

Cited by 15 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Detailed research work involving computer program had been published by K P Rao [12]. Researchers have been using this program widely for approximate calculation of ballistic parameters pertaining to gun propellants [20][21][22][23][24].…”

Section: Academic Journal Of Polymer Sciencementioning

confidence: 99%

Ballistic Studies on Fox-7 Based Triple Base Propellant for High Calibre Gun

Dahiwale¹

2019

AJOP

View full text Add to dashboard Cite

In the present work, triple base propellant (TBP) containing mainly energetic nitrate polymer nitrocellulose and nitroglycerine, picrite, 1,1-diamino-2,2-dinitroethene (FOX-7) along with ingredients such as stabiliser and plasticizer has been processed by solvent method. Picrite has been replaced in increments with FOX-7 from the propellant composition. Acetone: ethanol used as solvent to gelatinise/plasticize NC during processing. Dimensions of the propellant was determined by physical measurement and propellant grains were subjected to mechanical properties (compressive strength (CS), % compression) determination, sensitivity tests and closed vessel (CV) firing. Incorporation of FOX-7 led to remarkable increase in CS at sub-zero temperatures (-20°C) and reduced at higher temperatures (+55°C) for 20 % FOX-7 in TBP composition. CV test of the propellant was carried out at 0.2g/cc loading density in 700cc closed vessel at +21, -20 & +55°C to evaluate ballistic parameters such as Pmax, force constant, (dP/dt) max, pressure index (α), burning rate coefficient (β), rise time, relative force (RF) and relative vivacity (RV). The trends observed during this work bring out the potential of FOX-7 to impart temperature independent characteristics in the TBP used for high calibre gun.

show abstract

Section: Academic Journal Of Polymer Sciencementioning

confidence: 99%

Ballistic Studies on Fox-7 Based Triple Base Propellant for High Calibre Gun

Dahiwale¹

2019

AJOP

View full text Add to dashboard Cite

show abstract

“…In recent years there has been a move towards the use of cyclotrimethylene trinitramine (RDX) as fillers [28,29] in propellants, especially for gun propulsion [30][31][32]. Addition of RDX into propellants [33] can enhance the energy output of the propellants [34][35][36]. Due to weak adhesion between RDX and the binder, voids and exposure of the RDX surfaces increase the burning surface and controlled combustion performances are obtained [37,38].…”

Section: Introductionmentioning

confidence: 99%

Temperature Sensitivity Coefficients of RDX‐Based Propellants and Their Mixed Charges

You

Zhu

Liu

et al. 2021

Propellants Explo Pyrotec

View full text Add to dashboard Cite

Low temperature sensitivity coefficients of gun propellants are of great significance for improving the stability of weapon performances. In this work, RDX-NC-NG-DEGDN propellants (R-MNEGP) were prepared to reduce the temperature sensitivity coefficient of mixed charges. The temperature sensitivity coefficients of R-MNEGP, NC-NG-DEGDN propellants (MNEGP) and their mixed charges were studied by closed vessel tests, scanning electron microscope (SEM), and ballistic firing experiments. The results show that the increased burning surface of R-MNEGP compensates the decrease in the burning rate of the propellant when the initial temperature is decreased compared with MNEGP. The temperature sensitivity coefficient of R-MNEGP is lower than that of MNEGP, and the temperature sensitivity coefficients of the mixed charges (R-MNEGP and MNEGP) are between these two temperature sensitivity coefficients in the range of À 40°C-20°C and 20°C-50°C. Compared with MNEGP, the velocity temperature sensitivity coefficients of the mixed charges with 6 wt % and 10 wt % R-MNEGP decreased by 34.86 % and 70.67 %, and the pressure temperature sensitivity coefficients of these decreased by 42.99 % and 100.90 % with increasing temperature from À 40°C to 15°C. And the velocity temperature sensitivity coefficients had no significant change, and the pressure temperature sensitivity coefficients decreased by 2.58 % and 77.98 % in the range of 15°C-50°C. This study offers an attractive strategy for tuning the temperature sensitivity coefficient by mixing charges of R-MNEGP and MNEGP with different temperature sensitivity coefficients.

show abstract

“…With the increase of requirements for contemporary artillery that fire farther, faster, and more accurately, various kinds of high energy propellants containing a certain amount of cyclotrimethylene trinitramine (RDX) have been widely used nowadays [1][2]. Many researches have proved that RDX as a high energetic explosive is highly thermally and chemically erosive to the gun barrel [3].…”

Section: Introductionmentioning

confidence: 99%

Effects of an Organic‐inorganic Nanocomposite Additive on the Combustion and Erosion Performance of High Energy Propellants Containing RDX

Sun

Xiao

2017

Propellants Explo Pyrotec

View full text Add to dashboard Cite

A nanocomposite microsphere consisting of solid paraffin, nano-TiO 2 , nano-BN, zeolitic imidazolate framework-67 particles and polymethyl methacrylate was prepared and applied as a functional additive for high energy propellants (with about 23 wt % RDX) to reduce the barrel erosion and improve its combustion performance as well. High energy propellants modified with the nanocomposite were manufactured by a solvent extrusion technique. According to the scanning electron microscope and differential scanning calorimetry results, there exists a good compatibility between the nanocomposite and propellant matrix. The energy and combustion performance as well as erosion of the modified propellants were studied by a closed bomb test and an erosion tube device, respectively.Results showed that compared with the unmodified propellant, both the erosion and energy performance of modified high energy propellant gradually decreased with the increase of nanocomposites contents. When the content of nanocomposites was 5.1 %, the erosion mass of the modified propellant reduced to 37.0 % while the propellant force only decreased 5.7 %, indicating that the nanocomposite has enormous ability to improve gun erosion resistance while barely affect energy performance of propellant. Furthermore, the closed bomb burning curves of the samples showed that addition of nanocomposites to propellant matrix could prolong the combustion time, efficiently inhibit the initial generation rate of combustion gas, and further achieve the progressive burning of the propellants.

show abstract

Studies on RDX Influence on Performance Increase of Triple Base Propellants

Cited by 15 publications

References 2 publications

Ballistic Studies on Fox-7 Based Triple Base Propellant for High Calibre Gun

Ballistic Studies on Fox-7 Based Triple Base Propellant for High Calibre Gun

Temperature Sensitivity Coefficients of RDX‐Based Propellants and Their Mixed Charges

Effects of an Organic‐inorganic Nanocomposite Additive on the Combustion and Erosion Performance of High Energy Propellants Containing RDX

Contact Info

Product

Resources

About