Influence of Cellulosic Binders on Sensitivity and Combustion Behaviour of B-KNO3 Ignition System
Keywords:
Ballistic properties, cal-val, thermal analysis, sensitivity, binders, ignition system, solid rocket propellants, rocket propellants, nitrocellulose, cellulogic binders, combustion behaviour
Abstract
Boron-potassium nitrate (B-KNO3)-based compositions have been used as an effective ignitersystem for solid rocket propellants. A systematic study was undertaken to generate exhaustive
data on B-KNO3 (25:65)-based ignition systems with cellulosic binders, viz., nitrocellulose, ethyl
cellulose and plasticised ethyl cellulose. In addition, detailed investigations were carried out
with PEC as binder by varying its concentration from 2-10 per cent in the same system. The
experimental compositions (B-KNO3: binder) were evaluated by closed-vessel firing, thermal
analysis, sensitivity, mechanical properties and cal-val determination. The binders significantly
influenced the sensitivity and combustion behaviour of B-KNO3 compositions. The composition
with nitrocellulose as binder produced high flame temperature and cal-val as compared to ethyl
cellulose and plasticised ethyl cellulose-based compositions. The data indicated that the
calculated flame temperature for all compositions was in the range 2716 K to 2957 K. As the
plasticised ethyl cellulose content increased from 2 per cent to 10 per cent, the maximum pressure
increased with decrease in heat of combustion.
Published
2006-07-01
How to Cite
Bhingarkar, V., & Singh, H. (2006). Influence of Cellulosic Binders on Sensitivity and Combustion Behaviour of B-KNO3 Ignition System. Defence Science Journal, 56(3), 345-351. https://doi.org/10.14429/dsj.56.1898
Section
Special Issue Papers
Copyright (c) 2016 Defence Science Journal
Where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India