中文摘要：

制备了含3，6-双（1-氢-1，2，3，4-四唑-5-氨基）-1，2，4，5-四嗪（BTATz）铅复合物（LCBTATz）的双基（DB）推进剂和黑索今（RDX）-改性双基（CMDB）推进剂．采用热重．微商热重法（TG．DTG）及差示扫描量热法（DSC）研究了其热分解行为和非等温分解动力学，并在此基础上评价了其热安全性．结果表明，LCBTATZ-DB复合物中在350—540K之间只存在一个放热分解峰。LCBTATz-CMDB复合物中存在两个连续的放热分解峰，在390—540K温度范围内，其机理方程分别为：f（α）=α-1／2和f（α）=2（1-α）3/2．计算了热加速分解温度（T_SADT）、热爆炸临界温度（Tb）、热点火温度（T_TIT）和绝热至爆炸时间（t_Tlad），其值分别为：DB001复合物，T_SADT=444．50K,T_TITT=453．96K，Tb=471．84K：t_Tlad=39．36s：CMDB100复合物，T_SADT=442．38K，T_TITT=452．89K，Tb=464．13K，t_Tlad=21．3s，并以此来评价化合物的热安全性．考察了LCBTATz-DB以及LCBTATz-CMDB的燃烧性能，结果表明LCBTATz是一种高效的双基燃烧催化剂，在较大的压力范围内可以显著提高燃速并且大幅度降低压力指数．对于双基推进剂在2—8MPa压力范围内出现了明显的超燃速现象，8-12MPa出现了“麦撒”效应，对于改性双基推进剂的压力指数降到0．18．

英文摘要：

The composite double base （DB）/hexogen （RDX）-modified double base （CMDB） propellants （Nos. DB001 and CMDB100） were prepared with the lead complex of 3,6-bis（1H-1,2,3,4-tetrazol-5-yl- amino）-1,2,4,5-tetrazine （LCBTATz）, with and without the ballistic modifier. Their thermal behaviors and non- isothermal decomposition reaction kinetics were investigated by therrnogravimetry, derivative thermogravimetry （TG-DTG）, and differential scanning calorimetry （DSC）. For the LCBTATz-DB propellant, there was onemass loss stage in the TG curve and one exothermic peak in the DSC curve over the temperature range 350-540 K. For LCBTATz-CMDB, there were two continuous exothermic stages in the TG curve, and only one corresponding exothermic peak in the DSC curve over the range 390-540 K. The exothermal decomposition reaction mechanisms of LCBTATz-DB and LCBTATz-CMDB follow the functions f（α）=α-1/2 and f（α）=2（1-α）3/2, respectively （α： conversion degree）. The self-accelerating decomposition temperatures （TSADT）, thermal ignition temperatures （T_TITT）, critical temperatures of thermal explosion （Tb）, adiabatic times- to-explosion （t_Tlad）, and thermodynamic parameters of activation reaction were calculated, and the thermal safety was evaluated. For DB001, T_SADT=444.50 K, T_TITT=453.96 K, Tb=471.84 K, and t_Tlad=39.36 s. For CMDB100, TSAOT=442.38 K, T_TITT=452.89 K, Tb=464.13 K, and t_Tlad=21.3 s. As a high-efficiency combustion catalyst, LCBTATz in double-base propellants increases the propulsion rate and reduces the pressure index for larger scale pressures. This makes the DB propellant appear to have a significant super burning effect at 2-8 MPa and a ＂mesa effect＂ at 8-12 MPa. Meanwhile, the pressure exponent of the CMDB propellant decreased to 0.18.