黑索今基含硼炸药的爆热性能

Detonation Heat of Boron-contained Explosive Based on RDX

为了研究黑索今（RDX）基含硼（B）炸药的能量特性,采用GJB772A-1997方法701.1对7种含硼粉的RDX炸药：RDX/B/EVA（乙烯-醋酸乙烯共聚物）-90/8/2、RDX/B/EVA-88/10/2、RDX/B/EVA-86/12/2、RDX/B/EVA-83/15/2、RDX/B/EVA-78/20/2、RDX/B/EVA-75/23/2、RDX/B/EVA-68/30/2的爆热进行了测试并进行了理论计算。结果表明,硼粉含量为8%~20%时,混合炸药的爆热与硼粉含量之间存在线性关系,硼粉能够提高混合炸药的爆热。测量和计算的最大爆热值分别是7162 kJ.kg-1和8967 kJ.kg-1,分别对应为B/O比为0.87的组分为RDX/B/EVA-78/20/2的含硼炸药和B/O比为0.61的组分为RDX/B/EVA-83/15/2的含硼炸药。当爆热值达到最大后,随硼粉含量的增加,爆热值减小。

In order to investigate the energy characteristics of RDX based boron-contained explosive,the heats of detonation （Qdet） of seven explosives： RDX/B /EVA-90/8/2,RDX/B/EVA-88 /10/2,RDX/B /EVA-86/12/2,RDX/B /EVA-83 /15/2,RDX/B /EVA-78 /20/2,RDX/B /EVA-75 /23/2,RDX/B /EVA-68 /30 /2 mixtures were measured by standard method of GJB772A -97 -701.1,and theoreticalcalculation ofQdetwas performed. The results show that there is a linear relationship between the heats of detonation of explosivemixtures and the boron content in the range of 8% to 20%,indicating that boron powder makes the value ofQdetof RDX increase.The measured and calculated maximum heats of detonation are 7162 kJ.kg-1for RDX/B /EVA-78 /20 /2 mixture with B /O ratio of0.87 and 8967 kJ.kg-1for RDX/B /EVA-83 /15 /2 mixture with B /O ratio of 0.61 respectively. After maximum values ofQdet, withincreasing the boron content,the value of Qdet decreases.