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晶胞内嵌H2O2分子的CL-20基主客体炸药的温和制备(英)
引用本文:余治慧,徐金江,孙善虎,王洪范,张浩斌,段晓畅,朱春华,王树民,孙杰. 晶胞内嵌H2O2分子的CL-20基主客体炸药的温和制备(英)[J]. 含能材料, 2020, 28(2): 127-136. DOI: 10.11943/CJEM2019064
作者姓名:余治慧  徐金江  孙善虎  王洪范  张浩斌  段晓畅  朱春华  王树民  孙杰
作者单位:西南科技大学材料科学与工程学院,四川 绵阳 621010,中国工程物理研究院化工材料研究所,四川 绵阳 621999,中国工程物理研究院化工材料研究所,四川 绵阳 621999,西南科技大学材料科学与工程学院,四川 绵阳 621010,中国工程物理研究院化工材料研究所,四川 绵阳 621999,中国工程物理研究院化工材料研究所,四川 绵阳 621999,中国工程物理研究院化工材料研究所,四川 绵阳 621999,西南科技大学材料科学与工程学院,四川 绵阳 621010,中国工程物理研究院化工材料研究所,四川 绵阳 621999
基金项目:National Natural Science Foundation of China(21805259)
摘    要:六硝基六氮杂异伍兹烷(CL-20)是目前能量最高的单质炸药,为了进一步提高其爆轰性能,以过氧化脲作为H2O2的原料,在低温低压干燥的环境下,采用溶剂挥发法构筑了CL-20/H2O2主客体含能炸药。利用粉末X-射线衍射(PXRD)和拉曼光谱对其结构进表征。结果表明,制备的CL-20/H2O2主客体炸药是正交晶系的晶体,空间群为Pbca,具有长程有序堆积的结构。经同步热分析仪(TG-DSC)测试得到主体CL-20分子与客体H2O2分子之间的摩尔比为2:1。利用原位高温XRD研究了CL-20/H2O2的热晶变行为,结果表明,随着温度的升高,CL-20/H2O2逐渐转变为γ-CL-20,并且相转变效率高于ε-CL-20。通过对CL-20/H2O2生长过程的追踪,观察到在溶液结晶过程中,CL-20/CH3CN亚稳相为重要的中间体,并经过一个固相转晶过程最终形成CL-20/H2O2主客体炸药晶体。

关 键 词:主客体炸药  六硝基六氮杂异伍兹烷(CL-20)  H2O2  亚稳相  固相转晶
收稿时间:2019-03-16
修稿时间:2019-10-08

A Mild Method for the Construction of CL-20/H2O2 Host-guest Energetic Material
YU Zhi-hui,XU Jin-jiang,SUN Shan-hu,WANG Hong-fan,ZHANG Hao-bin,DUAN Xiao-chang,ZHU Chun-hu,WANG Shu-min and SUN Jie. A Mild Method for the Construction of CL-20/H2O2 Host-guest Energetic Material[J]. Chinese Journal of Energetic Materials, 2020, 28(2): 127-136. DOI: 10.11943/CJEM2019064
Authors:YU Zhi-hui  XU Jin-jiang  SUN Shan-hu  WANG Hong-fan  ZHANG Hao-bin  DUAN Xiao-chang  ZHU Chun-hu  WANG Shu-min  SUN Jie
Affiliation:(School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China;Institute of Chemical Materials,CAEP,Mianyang 621999,China)
Abstract:Hexanitrohexaazaisowurtzitane(CL-20)with a negative oxygen balance,is currently the most powerful commercially available explosive. In this work,the CL-20/H2O2 host-guest energetic material(CL-20/H2O2)was constructed by using urea hydrogen peroxide(UHP)as raw material through the solvent volatilization at low temperature and negative pressure. The structure of the complex was confirmed through X-ray diffraction(XRD)and Raman spectra. Results indicates that CL-20/H2O2 crystal-lizes in orthorhombic system space group Pbca with a long-range ordered stacked structure. The ratio of CL-20 molecule and H2O2 molecule is 2∶1 stoichiometry according to the thermogravimetry and simultaneous differential scanning calorimetry(TG-DSC)analyses. Furthermore,the polymorph transitions of CL-20/H2O2 with increasing temperature were investigated by in situ high temperature XRD. Results show that CL-20/H2O2 gradually converts to γ-CL-20 with elevated temperature and the rate of transition is faster than that of ε-CL-20. The CL-20 acetonitrile solvate(CL-20/CH3 CN)is a key intermediate via a solid state phase transition to form the CL-20/H2O2 host-guest energetic material by tracing the growing process of CL-20/H2O2.
Keywords:host-guest energetic materials  hexanitrohexaazaisowurtzitane (CL-20)  H2O2  metastable phase  solid state transition phase
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