摘要
研究了LLM-105的重结晶方法。结果表明,不同重结晶方法获得的LLM-105平均粒径、纯度和撞击感度差别较大,其中冷却法和溶剂(DMSO)-非溶剂(热水)法结晶产品撞击感度较低,H50值分别为120.0cm和108.3cm。采用DSC?TG、VST、TG和热爆炸等方法研究了LLM-105的热性能,DSC放热起始温度为341.2℃(升温速率10℃.min-1),120℃条件下48h放气量为0.016mL.g-1,120℃条件下48h热失重为0.13%,5s延滞期爆发点为367.6℃;VST测试结果表明,LLM-105与HMX、AS、F2311、F2314、Estane的相容性良好。测定LLM-105爆速(LLM-105/F2314=95/5,1.845g.cm-3,96.4%TMD)为7991m.s-1。压力-密度测试结果表明,LLM-105具有良好的压缩成型性能。
The reerystallization of 2,6-diamino-3,5-dinitropyrazine-l-oxide （LLM-105） was studied. Results show that mean particle diameter, purity and impact sensitivity of LLM-105 may be quite different by different crystallization methods. The products ob- tained by cooling crystallization and solvent （ DMOS）-nonsolvent（ hot water） crystallization have low impact sensitivity, the value of Hs0 are 120.0 em and 108.3 cm. Thermal properties of LLM-105 were studied by DSC-TG, VST, TG and thermal explosion test. Thermal properties parameters of LLM-105 are shown respectively： DSC exothermie onset temperature is 341.2℃ （heating rate 10℃·min^-1） ; VST： 0.016 mL· g^-1/120℃/48 h; loss of weight： 0.13%/120℃/48 h; thermal explosion temperature for 5 s explosion delay is 367.5℃. The results of VST show that LLM-105 has good compatibility with HMX, AS, F2311, F2314 and estane. Measured detonation velocity of LLM-105 （LLM-105/F2314 = 95/5, 1. 845 g·cm^-3, 96.4% TMD） is 7991 m·s^-1 The experimental results of pressure-density curve show that LLM-105 has good pressing-molded property.
出处
《含能材料》
EI
CAS
CSCD
2008年第6期686-688,692,共4页
Chinese Journal of Energetic Materials
