Massive Preparation of Reduced-Sensitivity Nano CL-20 and Its Characterization

作者：Guo Xiaode^*; Ouyang Gang; Liu Jie; Li Qing; Wang Longxiang; Gu Zhiming; Li Fengsheng

来源：Journal of Energetic Materials, 2015, 33(1): 24-33.

DOI：10.1080/07370652.2013.877102

• CL-20
• mechanical ball milling
• mechanical sensitivity
• particle size
• thermal stability

Nano 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) was produced massively by ball milling. One thousand grams of the raw CL-20 were used per batch. The product was characterized using laser granularity measurement, scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). The results show that the pulverized particles were pseudo-spheres with an average particle size (d(50)) of 200 nm, and the thermal decomposition peak temperature of the nano CL-20 was 239.61 degrees C lower than that of the micrometer-sized CL-20 at a heating rate of 15 degrees C.min(-1). Furthermore, compared with the raw CL-20, the impact and friction sensitivities of the nano CL-20 were considerably reduced by 116.2 and 22%, respectively, indicating the great improvement in safety of CL-20.

• 出版日期2015
• 单位南京理工大学