Study of nano-nitramine explosives: preparation, sensitivity and application
Study of nano-nitramine explosives: preparation, sensitivity and application
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DOI：
10.1016/j.dt.2014.04.002
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发表时间：
2014-06-01
影响因子：
5.1
通讯作者：
Li, Feng-sheng
中科院分区：
文献类型：
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作者：
Liu, Jie;Jiang, Wei;Li, Feng-sheng
在双向研磨机上生产纳米硝铵炸药（RDX、HMX、CL-20）。扫描电子显微镜（SEM）观察表明，所制备的颗粒为半球形，并使用激光粒度分析仪表征了窄的粒度分布。与微米级样品相比，纳米产品的摩擦和冲击感度明显降低。在冲击敏感性的情况下，纳米产品具有较低的值分别为59.9%（RDX），56.4%（HMX）和58.1%（CL-20）。将纳米RDX和纳米HMX作为微米级炸药的替代材料应用于塑料粘结炸药（PBX）中，其冲击波感度分别降低24.5%（RDX）和22.9%（HMX），爆速提高约1.7%。因此，纳米硝铵炸药有望在PBX和复合改性双基推进剂（CMDBs）中得到推广应用，从而改善其某些性能。中国军械学会版权所有（C）2014。Elsevier B. V.制作和主持。保留所有权利。
Nano-nitramine explosives (RDX, HMX, CL-20) are produced on a bi-directional grinding mill. The scanning electron microscope (SEM) observations show that the prepared particles are semi-spherical, and the narrow size distributions are characterized using the laser particle size analyzer. Compared with the micron-sized samples, the nano-products show obvious decrease in friction and impact sensitivities. In the case of shock sensitivities, nano-products have lower values by 59.9% (RDX), 56.4% (HMX), and 58.1% (CL-20), respectively. When nano-RDX and nano-HMX are used in plastic bonded explosives (PBX) as alternative materials of micron-sized particles, their shock sensitivities are significantly decreased by 24.5% (RDX) and 22.9% (HMX), and their detonation velocities are increased by about 1.7%. Therefore, it is expected to promote the application of nano-nitramine explosives in PBXs and composite modified double-based propellants (CMDBs) so that some of their properties would be improved. Copyright (C) 2014, China Ordnance Society. Production and hosting by Elsevier B.V. All rights reserved.