不同催化剂对降低双基火药燃速压力指数效果的影响

Influence of Different Catalyzers on Decreasing Burning-rate Pressure Exponent of Double-base Propellant

为探讨降低火药燃速压力指数的技术途径,进行了催化剂降低双基火药燃速压力指数的研究。选择9种催化剂,测定了含有催化剂双基火药的燃速压力指数,同时对其进行了分段处理。探讨了不同催化剂在不同压力段对降低双基火药燃速压力指数的规律。结果表明,不同催化剂在不同压力段对降低双基药压力指数有不同的效果,总趋势是低压段效果较明显,在研究的9种催化剂中,纳米CuO和Pb3O4催化剂能够明显降低双基火药燃速压力指数。

In order to discuss technical approach of decreaing burning-rate pressure-exponent of propellant, a method of decreaing burning-rate pressure-exponent of double-base propellant by additiving catalyzer has been studied. Nine catalyzers are selected. The burning-rate pressure-exponent of double-base propellant containing the catalyzers is measured and disposed in terms of segment. The law of depressing burning-rate pressure-exponent of double-base propellant with different catalyzers at different pressure interval is discussed. The results show that different catalyzers at different pressure interval have different effects in decreaing burning-rate pressure-exponent of double-base propellant ,the general trend is that in low pressure interval it has more obvious effects. Of nine catalyzers studied, nano-mCuO and Pb304 catalyzers can decrease burning-rate pressure-exponent of double-base propellant obviously.