硼氢化钠(NaBH_4)在燃烧剂中的应用研究

Application of Sodium Borohydride (NaBH_4) in Incendiary Agent

本文采用REAL程序和正交设计法对含有硼氢化钠(NaBH4)的化学储氢燃烧剂进行了配方设计计算,计算结果表明硼氢化钠的加入能显著提高燃烧剂的热值,硼氢化钠含量为20%时,可使燃烧剂能量提高14.3%,计算确定了这类化学储氢燃烧剂的最佳配比为Ba(NO3)2:RP:Mg:NaBH4=60:10:10:20。对加入和未加入硼氢化钠的燃烧剂进行了DSC分析、感度测试和效应试验,测试结果表明加入硼氢化钠,燃烧剂的感度低,特性落高为30.2cm,热效应增大,为3321.61kJ·kg-1,燃烧效果更好,具有良好的应用前景。

The use of a sodium borohydride （ NaBH4 ） in incendiary agent was investigated to improve the energy properties of the pyrotechnics. Orthogonal law and REAL software were used to design and calculate the heat of incendiary agent with sodium borohydride. Addition of 20% sodium borohydride can make the whole energy of incendiary agent increased by 14.3% , which provide a way to develop a new kind of pyrotechnics. An optimized formulation of incendiary agent is determined as Ba（ NO3）2 ： RP ： Mg ： NaBH4 = 60 ： 10 ： 10 ： 20. The experimental results of DSC analysis, mechanical sensitivity and burning show that the optimized formula with NaBH4 have lower sensitivity （ the 50% drop height is 30.2 cm） and better burning effects （ the heat value is 3321.61 kJ·kg^-1） compared with that without NaBH4, and are in good agreement with the formulation calculation results by REAL software. The research results provide an important basis for development of new pyrotechnics with high energy.