Thermal Behaviour of AP Based CMDB Propellants with Stabilizers
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.
Published
2013-01-01
How to Cite
Asthana, S., Divekar, C., Khare, R., & Shrotri, P. (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
Section
Chemical Science & Technology
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