Thermal Behaviour of AP Based CMDB Propellants with Stabilizers

Authors

  • S. N. Asthana Explosives Research & Development Laboratory, Pune
  • C. N. Divekar Explosives Research & Development Laboratory, Pune
  • R. R. Khare Explosives Research & Development Laboratory, Pune
  • P. G. Shrotri Explosives Research & Development Laboratory, Pune

DOI:

https://doi.org/10.14429/dsj.42.4382

Keywords:

Molecular sieve, Resorcinol based composition

Abstract

Stability test results and DTA studies indicate the superiority of molecular sieve (MS) over zirconium silicate (ZrSiO/sub 4/) as the stabilizer for a composite modified double base (CMDB) system. Shelf life as computed from autoignition test results was 30 years for MS-based composition which is almost double the life of ZrSiO/sub 4/, but approximately half the life of resorcinol-based composition which was used as a reference. Higher stabilizing effect of MS as compared to ZrSiO/sub 4/ has been explained on the basis of the presence of channels and cavities in its structure, which makes it an effective adsorbent for decomposition catalysing species. Poor stabilization capability of m-dinitrobenzene as compared to resorcinol suggests the catalytic involvement of acidic decomposition products of nitrate esters in autodecomposition process of CMDB propellants.

Author Biographies

S. N. Asthana, Explosives Research & Development Laboratory, Pune

Dr SN Asthana, presently, a Scientist at ERDL, Pune , obtained his PhD from the University of Poona in 1990. At ERDL he has been engaged in R&D work on advanced CMDB and minimum signature propellants for the last 10 years . The areas of his research interest include combustion, sensitivity , ageing studies on solid propellants and establishment of synthesis process for high energy polymer. He has published about 20 research papers

C. N. Divekar, Explosives Research & Development Laboratory, Pune

Mr CN Divekar obtained his MSc in Chemistry from University of Poona in 1991. He has been working in ERDL, Pune, for the last 10 years where he has made contribution towards the development of solid rocket propellants and their stability testing. He lias four research papers to his credit

R. R. Khare, Explosives Research & Development Laboratory, Pune

Mr RR Khare is a Scientist at ERDL, Pune . He obtained his MSc from Nagpur University in 1959. He. has made major contribution towards the development of solid rocket arid gun propellants during the last 25 years. Presently, he is the Group Director of the Quality Assurance & Reliability Division and Testing and Evaluation Group at ERDL

P. G. Shrotri, Explosives Research & Development Laboratory, Pune

Explosives Research & Development Laboratory, Pune

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Published

2013-01-01

How to Cite

Asthana, S. N., Divekar, C. N., Khare, R. R., & Shrotri, P. G. (2013). Thermal Behaviour of AP Based CMDB Propellants with Stabilizers. Defence Science Journal, 42(3), 201–204. https://doi.org/10.14429/dsj.42.4382

Issue

Vol. 42 No. 3: High Energy Materials

Section

Chemical Science & Technology

License

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