期刊
MATERIALS LETTERS
卷 205, 期 -, 页码 94-97出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.06.064
关键词
CL-20; PNA; Spherical; Composite; Ultrasonic-assisted emulsion method
资金
- SWUST - China [14zx7105]
- CAEP - China [15zh0058]
A novel spherical composite explosive of 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane and p-nitroaniline (CL-20@ PNA) in a molar ratio of 1: 1 has been prepared by ultrasonic-assisted emulsion method. Then, the shape, structure, and thermodynamic behaviours of the spherical composite CL-20@ PNA was characterized by Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Differential scanning calorimetery (DSC). The SEM results indicate that the composite CL-20@ PNA are relatively uniform with an average particle size of micron, and the morphology is spherical. XRD analyses confirm that the spherical composite CL-20@ PNA has some peak patterns with large differences from CL-20 and PNA. FT-IR spectra suggest that hydrogen-bonding interactions may exist between CL-20 and PNA molecules. Thermal analysis shows that the spherical composite CL-20@ PNA has excellent thermal stability. Moreover, an impact sensitivity test indicates that the sensitivity of the spherical composite CL-20@ PNA is sufficiently reduced relative to CL-20 and CL-20/PNA physical mixing, which data is up to 60.1 cm. (C) 2017 Elsevier B.V. All rights reserved.
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