摘要
采用重结晶法提纯HNS-Ⅱ,并通过振动空穴效应细化得到高纯、超细的HNS-F,将二者相关性能进行对比研究。结果表明:HNS-F的粒度分布为0.1～20μm,比表面积增大为9.10m2.g-1;熔化温度、分解热焓升高;分解峰温降低,活化能降低为201.6kJ.mol-1;冲击片50%起爆能量降低为0.557J。
Uhrafine 2,2＇,4,4＇ ,6,6＇-hexanitrostilbene（HNS-F） was prepared with obtained HNS-Ⅱ by recrystallization and vibration cavity comminute, and was characterized. Results show that the particle sizes of HNS-F distribute from 0.1 μm to 20 μm, and its BET specific surface area increases to 9.10 m2 · g^-1. The differential scanning calorimetry （DSC） analysis and thermal decomposition kinetics calculation indicate, compared with HNS- Ⅱ , the melting point and enthalpy of decomposition of HNS-F increase, and its temperature of the exothermic peak decreases, and its activation energy decreases to 201.6 kJ·mol^-1. 50% threshold energy for slapper detonator charged with HNS-F decreases to 0. 557 J.
出处
《含能材料》
EI
CAS
CSCD
2008年第2期138-141,共4页
Chinese Journal of Energetic Materials
关键词
物理化学
六硝基芪(HNS)
超细
振动空穴细化
冲击片起爆阈值
physical chemistry
hexanitrostibene （HNS）
ultrafine
vibration cavity comminute
initiation threshold for slapper detonator
