摘要
制备了两种含能离子盐IMI·TNR和4-AT·TNR(IMI=咪唑,4-AT=4-氨基^(-1) ,2,4-三唑,TNR=2,4,6-三硝基间苯二酚)。采用IR、元素分析和X射线单晶衍射确定了晶体结构。用差示扫描量热法(DSC)和热重分析(TG),分析了热分解机理。基于DSC的结果,采用Kissinger法和Ozawa法获得非等温反应的动力学参数。测定了两种离子盐的撞击感度、摩擦感度和火焰感度。结果表明,IMI·TNR为单斜晶系,空间群为P2_1/c,晶体密度为1.779 g·cm^(-3),分解温度为223.4℃;4-AT·TNR为三斜晶系,空间群为P^(-1) ,晶体密度为1.772 g·cm-3,分解温度为259.8℃。它们的T_(b)、ΔS~≠、ΔH~≠和ΔG~≠值分别为222.4℃,-213.06 J·K^(-1) ·mol-,302.89 kJ·mol^(-1) 和407.10 kJ·mol^(-1) (IMI·TNR)和257.3℃,-221.31 J·K^(-1) ·mol^(-1) ,129.66 kJ·mol^(-1) 和243.24 kJ·mol^(-1) (4-AT·TNR)。它们对冲击、摩擦和火焰的刺激不敏感。
The two kinds of energetic ionic salts IMI·TNR and 4-AT,TNR （ IMI = imidazolium, 4-AT=4-amino-1 ,2,4-triazolium, TNR =2,4,6-trinitro resorcinol） were synthesized. The crystal structures were determined by IR, elemental analysis and X-ray single crystal diffraction. The thermal decomposition mechanisms were investigated with DSC and TG. The non-isothermal reaction kinetic parameters were researched by Kissinger＇s method and Ozawa＇s method on the basic of DSC results. The mpact sensitivity, friction sensitivity and flame sensitivity for two ionic salts was measured. Results show that the crystal of IMI · TNR is monoclinic , space group P21/c with a density of 1.779 g · cm-3 and decomposition temperature of 223.4 ℃ and 4-AT · TNR is triclinic, space group P-1 with a density of 1.772 g · cm-3 and decomposition temperature of 259.8 ℃. The values of Tb, Sst, Hst and Gst are 222.4 ℃, -213.06J K-1 · mol-1, 302.89 kJ ·mol-land407.10 kJ · mol-1 for IMI · TNR and 257.3 ℃, -221.31 J · K-1 ·mol-1, 129.66 kJ · mol-1 and 243.24 kJ · mol-1 , respectively. They are insensitive to impact, friction and flame stimuli.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2015年第12期1221-1227,共7页
Chinese Journal of Energetic Materials
