超细CL-20/Cr_2O_3复合物的制备、表征与性能

Preparation, Characterization and Performances of Ultrafine CL-20/Cr_2O_3 Composite Energetic Materials

为降低六硝基六氮杂异戊兹烷（简称HNIW,CL-20）的机械感度，采用溶胶-凝胶法结合超临界干燥技术，制备出了平均粒径为1-2μm的超细CL-20／Cr2O3复合含能材料。用扫描电镜（SEM）和傅里叶变换红外光谱（FT-IR）对CL-20／Cr2O3复合物的形貌、粒径大小、复合方式进行了表征，并对其撞击感度、摩擦感度进行了测试。结果表明，CL-20与多孔性Cr2O3气凝胶之间为物理复合，超细CL-20／Cr2O3复合物撞击感度的特性落高值提高了230．2％，摩擦感度降低了30％。

In order to reduce the mechanical sensitivity of CL-20, ultrafine CL-20/Cr2O3 composite energetic materials with the mean particle diameter of 1-2μm was prepared, by sol-gel method and supercritical drying technology. Its pattern, particle size and complex methods were characterized by SEM and FT-IR, and its impact sensitivity and its friction sensitivity were studied. Test results indicated that its characteristic droop is higher 230.2% and its P（friction sensitivity） is decreased 30% than that of raw materials.