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利用热重法(Thermo Gravimetry,TG)和差示扫描量热法(Differential Scanning Calorimetry,DSC)研究了GHQ推进剂的热分解行为,采用Kissinger和Ozawa法分别求出其活化能,并计算了热爆炸临界温度和自加速分解温度。通过热履历实验研究了少部分GHQ推进剂样品分解对其整体热分解行为的影响,结果表明:GHQ推进剂热分解分为2个阶段,分别对应双基组分分解和RDX分解;少部分GHQ推进剂样品分解对双基组分分解有明显影响,对RDX分解基本无影响,热履历使GHQ推进剂热稳定性和热安全性降低。
The pyrolysis behavior of GHQ propellants was studied by thermogravimetry (TG) and differential scanning calorimetry (DSC). The activation energies were calculated by Kissinger and Ozawa methods respectively. Explosion critical temperature and self-accelerating decomposition temperature. The results of thermal decomposition of GHQ propellants show that the thermal decomposition of GHQ propellant is divided into two stages, which correspond to bistatic decomposition and RDX decomposition respectively. A small part of GHQ The decomposition of propellant samples had a significant effect on the decomposition of bistatic components, and had little effect on the decomposition of RDX. Thermal history reduced the thermal stability and thermal safety of GHQ propellants.