# Studies on the pyrolysis of composite solid propellants leading to ignition

Kishore, K and Sankaralingam, S (1987) Studies on the pyrolysis of composite solid propellants leading to ignition. In: Defence Science Journal, 37 (3). pp. 333-338.

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## Abstract

Studies on the pyrolysis leading to ignition of polystyrene-$NH_4ClO_4$, PVC-$NH_4ClO_4$, and polyphenol-formaldehyde-$NH_4ClO_4$ propellants reveals that the activation energy of ignition depends strongly upon the binder. Double-base propellants have an empirical relation between the ignition delay $(\tau)$ and the oxidizer concentration; when the same equation is applied to composite solid propellants, the plot of ln $\tau$ vs, ln C (C = concn, %) yields a straight line with a knee corresponding to 65-70% $NH_4ClO_4$, above which the dependence on $\tau$ becomes less sensitive.

Item Type: Journal Article http://www.drdo.org/pub/dsj/dsjhome.htm Copyright of this article belongs to Defence Scientific Information & Documentation Centre Division of Chemical Sciences > Organic Chemistry 18 Apr 2008 27 Aug 2008 13:20 http://eprints.iisc.ernet.in/id/eprint/13761