六硝基六氧杂异伍兹烷/Estane微球制备及其表征

Preparation and Characterization of CL-20 / Estane Microsphere

利用溶液悬浮法和微凝胶分散性好的特点,以Estane作为粘结剂,CL-20为主体炸药,制备了CL-20/Estane复合炸药;并对其进行SEM、XRD、DSC以及撞击感度性能测试。结果表明Estane可以成功包覆在CL-20表面,所得颗粒为类球形小微球,粒径在50μm左右。包覆后晶型仍为ε型,包覆后样品与细化的CL-20相比,热爆炸临界温度提升了1.52℃,活化能提高了7.19 k J·mol^(-1),并且其撞击感度明显降低,特征落高(H50)由细化CL-20的20.79 cm增加到30.64 cm,H50数值提高了47%。

By the solution slurry method and the characteristic of microgel＇s good dispersion to prepared CL-20/Estane composite explosive,Estane as a binder,CL-20 as the main explosives,and conducting SEM,XRD,DSC and impact sensitivity test,the results showed that Estane can be coated on the surface of CL-20 effectively,and obtain the particles are spherical microsphere,diameter approximately 50 μm. After the coating crystal form is still ε,compared with CL-20 without Estane,the thermal explosion critical temperature increased 1.52℃,and the activation energy increased 7.19 kJ·mol^（-1）,the impact sensitivity of coated sample was reduced significantly,the characteristic drop height（H50） was increased from 20. 79 cm to 30. 64 cm,increased 47%.