摘要
为了提高耐热炸药2,6-二苦氨基-3,5-二硝基吡啶(PYX)的能量输出和撞击安全性,以N-N-甲基甲酰胺(DMF)为溶剂,蒸馏水为非溶剂,采用溶剂-非溶剂重结晶细化技术制备出了重均平均粒径为1.06μm的PYX,并与扫描电镜照片进行了对比。性能测试的结果表明:细化后的PYX爆发点降低了0.98%,而撞击感度降低了152.62%,钢凹值提高了9.94%。
In order to improve energy output and impact security of 2,6-bis （picrylamino）-3,5-dinitropyridine （PYX）, the micron PYX particle with mean particle diameter of 1.06 p.m was prepared with solvent-nonsolvent recrystallization technology. The experiment was carried out with DMF （N,N-di-methylformamide） as solvent and distilled water as nonsolvent. Its particle size and distribution were characterized by Scanning Electron Microscope （SEM） and Laser particle size analysis. The results show that fine PYX ignition point of 5 s delay is decreased by 0, 98% ,its impact sensitivity is reduced by 152.62% and its steel engraving is increased by 9.94%.
出处
《含能材料》
EI
CAS
CSCD
2007年第3期198-200,213,共4页
Chinese Journal of Energetic Materials
基金
中北大学2005年自然科学基金(NUC2005045)
关键词
材料科学
超细PYX
重结晶
能量输出
撞击感度
爆发点
materials science
ultra-fine PYX
recrystallization
energy output
impact sensitivity
ignition point
