摘要
采用喷雾干燥法制得超细CL-20/TNT共晶炸药。采用扫描电镜（SEM）对其大小和形貌进行表征,利用X射线衍射法（XRD）和差示扫描量热法（DSC）对其是否形成共晶进行判定,并对其进行撞击安全性能测试与分析。结果表明,所制得的样品不是CL-20与TNT简单的混合,而是形成了超细CL-20/TNT共晶炸药,粒径小于1μm并团聚成1~10μm的微球;超细CL-20/TNT共晶炸药的熔点为132.32℃,热分解过程分两个阶段,第一阶段和第二阶段的分解放热峰温分别为218.98℃和253.15℃,特性落高为49.3 cm,比原料CL-20高36.2 cm。
Ultrafine CL-20/TNT cocrystal explosive was prepared by a spray drying method. Scanning electron microscopy （SEM） was used to characterize the particle size and morphology. X-ray diffraction （XRD） and differential scanning calorimetry （DSC） were utilized to determine whether the cocrystal explosive was prepared. Furthermore, the impact sensitivity of cocrystal explosive was tested. Results show that the prepared samples are not the mix of CL-20 and TNT but rather ultrafineCL-20/TNT cocrystal ex- plosives. The particle size of cocrystal explosives are under 1 izm and they aggregate into many microparticles, which are spherical in shape and 1 -10 μm in size. The melting point of ultrafine CL-20/TNT cocrystal explosive is 132.32 ℃. The thermal decompo- sition process can be divided into two stages. The peak temperatures of exothermic decomposition for first and second stage are 218.98 ℃ and 253.15 ℃, respectively. The characteristic height of CL-20/TNT cocrystal explosives is 49.3 cm, which increases by 36.2cm compared with raw CL-20.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2015年第11期1103-1106,共4页
Chinese Journal of Energetic Materials
