Thermal decomposition of energetic materials 86. Cryogel synthesis of nanocrystalline CL-20 coated with cured nitrocellulose
Thermal decomposition of energetic materials 86. Cryogel synthesis of nanocrystalline CL-20 coated with cured nitrocellulose
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DOI：
10.1002/prep.200300009
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发表时间：
2003-10-01
影响因子：
1.8
通讯作者：
Brill, TB
中科院分区：
文献类型：
--
作者：
Tappan, BC;Brill, TB
通过溶胶-凝胶到冷冻凝胶方法合成了一种不寻常的含能复合材料，其中 CL-20 的球形纳米尺寸颗粒均匀地涂覆有 HDI 交联的硝化纤维素。实现了高达 90% 的固体负载。通过透射电子显微镜、原子力显微镜和X射线粉末衍射测定CL-20的粒径在20-200 nm范围内。通过 DSC 和 T-jump/FTIR 光谱研究了复合材料的分解特性。分解性能主要由硝化纤维素控制，直至 CL-20 的百分比远高于 50%。冷冻凝胶的落重冲击敏感性基本上与组成无关。
An unusual energetic composite, in which spherical nano-dimensional particles of CL-20 were uniformly coated with HDI-cross-linked nitrocellulose, was synthesized by the sol-gel to cryogel method. Up to 90% solid loading was achieved. The particle size of CL-20 was determined to be in the range of 20-200 nm by transmission electron microscopy, atomic force microscopy, and X-ray powder diffraction. The decomposition characteristics of the composite were investigated by DSC and T-jump/FTIR spectroscopy. The decomposition properties were controlled mostly by nitrocellulose until the percentage of CL-20 was well above 50%. The drop weight impact sensitivity of the cryogels was essentially independent of the composition.