摘要
利用3-硝基-1,2,4-三唑-5-酮的钠盐(NaNTO.H2O)和盐酸胍在水溶液中合成了一种新型含能材料NTO胍盐(GNTO)。采用DSC和TG/DTG法对GNTO进行了热行为及非等温热分解动力学研究,其热分解反应的动力学方程为dαdT=102β3.716(1-α)32[1-(1-α)31]21exp(-2.602×105/RT),临界爆炸温度为256.29℃。同时,利用微量热法对GNTO的比热容进行了测定,298.15 K时GNTO的标准摩尔比热容为236.88 J/(mol.K);计算得到了GNTO的绝热爆炸时间为102.16 s。
3-Nitro-1,2,4-triazol-5-one guanidine salt(GNTO) was synthesized by the reaction of NaNTO·H2O and guanidinium chloride solution in water at 60℃. The thermal behavior and non-isothermal decomposition kinetics of GNTO were researched by using DSC and TG/DTG methods. The obtained kinetic equation is dα/dT=10^23.71/β 6(1-α)^2/3[1-(1-α)^1/3]^1/2 exp(-2.602×10^5/RT). The critical temperature of thermal explosion is 256.29 ℃. The specific heat capacity of GNTO was determined by means of micro-DSC method and the standard molar specific heat capacity is 236.88 J/( mol.K) at 298.15 K. The calculation results show that adiabatic time-to-explosion of GNTO is 102.16 s.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2009年第1期74-78,共5页
Journal of Solid Rocket Technology
基金
国家自然科学基金(20803058)
陕西省自然科学基金项目(SJ08B10)
火炸药燃烧国防科技重点实验室武器装备预研基金(9140C350101060C3501)
关键词
3-硝基-1
2
4-三唑-5-酮(NTO)
GNTO
非等温分解动力学
比热容
绝热至爆时间
3-nitro-1,2,4-triazol-5-one (NTO)
3-nitro-1, 2,4-triazol-5-one guanidine salt (GNTO)
non-isothermal decompo- sition kinetics
specific heat capacity
adiabatic time-to-explosion