摘要
为了改善2,4,6,8,10,12?六硝基?2,4,6,8,10,12?六氮杂异伍兹烷(CL?20)的安全性能,采用一步球磨法制备出纳米CL?20/AP含能复合粒子,并通过扫描电子显微镜(SEM)、粉末X射线衍射(XRD)、差示扫描量热法(DSC)和撞击感度测试对其性能进行了研究。结果表明,纳米CL?20/AP含能复合粒子球形化效果明显,粒径约为300～500 nm;复合粒子的峰位置发生明显的偏移、新增和消失,推测其物相晶型可能发生变化,由于多晶样品的择优取向,复合粒子的X射线衍射峰强度明显降低;纳米CL?20/AP含能复合粒子的放热峰相比原料提前了,更容易发生热分解;撞击感度测试中,复合粒子的特性落高比CL?20增加了13.10 cm,安全性能更好。
In order to improve the safety performance of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20),nano CL-20/AP(ammonium perchlorate)energetic composite particles were readily prepared via a one-step ball milling method,a facile,clean,and continuous synthesized strategy.The prepared samples were studied by scanning electron microscopy(SEM),X-ray diffraction(XRD),differential scanning calorimetry(DSC)and impact sensitivity test.The SEM results show that the CL-20/AP composite particles are smooth on surface and nearly spherical with size of 300-500 nm.The XRD peak position of CL-20/AP is obviously deviated and some peaks are even disappeared,which means new crystalline phase may be formed.Due to the preferred orientation of the polycrystalline samples,the XRD peak intensity is reduced.The thermal decomposition peak of CL-20/AP decreases.The impact sensitivity result shows that the H50 of the nano CL-20/AP composite particles is 26.07 cm,which increases by 13.10 cm compared with raw CL-20,indicating a better safety performance.
作者
刘燕
安崇伟
罗进
王晶禹
LIU Yan;AN Chong-wei;LUO Jin;WANG Jing-yu(School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2018年第12期1009-1013,共5页
Chinese Journal of Energetic Materials
