传爆药用炸药超细化技术研究

A STUDY ON THE ULTRAFINE PROCESSING OF EXPLOSIVES FOR USE AS BOOSTERS

通过对常用化学重结晶方法制备超细炸药粒子加以改进 ,建立了一种基于微观混合原理的微团化动态结晶超细化方法。采用此方法对奥克托今炸药进行重结晶超细化处理 ,并使用激光粒度分析仪和透射电子显微镜进行粒度分析 ,结果表明 ,微团化动态结晶超细化方法制备的HMX超细粒子颗粒细小均匀 ,粒度分布范围窄 ,而且形状完整。同时 ,在文章中对此方法的各种工艺影响因素进行了分析 ,并就微观混合超细化机理进行了研究 ,对试验结果进行了解释。最后认为 ,微团化动态结晶超细化方法是一种较好的制备亚微米级单质炸药的方法。

Ultrafine HMX powders were prepared by an improved recrystalization method, viz. the atomizing kinetic crystal ultrafine process. Using laser particle size analyzer and TEM, it is shown that ca 76% of the the ultrafine particles are below 1μm in size and particle size distribution of the ultrafine HMX explosive is rather concentrated. Four processing conditions that influence the ultrafine process were analyzed and the ultrafine-action mechanism in the process was studied to explain results of the experiment. The results demonstrate that atomizing kinetic crystal ultrafine processing can be a new method in the preparation of ultrafine explosives.