高固含量改性双基推进剂的热危险性研究  

Thermal Hazard Study of Composite Modified Double-Base Propellant with High Solid Content

作　　者：贾昊楠[1,2] 路桂娥[2] 安振涛[1] 江劲勇[2] 葛强[2] 王韶光[2] 陈晨[1,2] 

机构地区：[1]军械工程学院,河北石家庄050003 [2]军械工程学院军械技术研究所,河北石家庄050003

出　　处：《推进技术》2015年第5期789-794,共6页Journal of Propulsion Technology

摘　　要：为研究具有高固含量(黑索金RDX质量分数为48.5%)改性双基推进剂的热危险性,采用热重分析仪TG、差示扫描量热仪DSC以及加速量热仪ARC,对比分析了双基推进剂S0,改性双基推进剂GHT-1A和单质炸药RDX的热分解特性,并从两个方面评估了GHT-1A的热危险性。TG/DSC实验结果显示GHT-1A中双基组分的分解峰温高于S0的分解峰温,而其炸药组分的分解峰温与单质炸药RDX接近。ARC的实验结果显示GHT-1A在理想绝热条件下的起始分解温度为138.9℃,绝热温升为1415.3℃,达到最大温升速率所需时间为13.8min,单位质量产生气体最大压力为13.1MPa·g-1。研究结果表明,GHT-1A发生热爆炸的可能性略低于双基推进剂S0,而高于单质炸药RDX,爆炸破坏性则较强。To study the thermal hazard of the composite modified double-base propellant with high solid con- tent, the thermal decomposition of GHT-1A was studied by TG, DSC, and ARC. Its mass fraction of Hexogen （RDX） is about 48.5%. The test results were compared with one double-base propellant So and single-compound explosive RDX. And the thermal hazard of GHT- 1A was evaluated from two aspects. The TG/DSC test results show that the decomposition peak temperature of double-base component of GHT- 1A is higher than that of So, and the peak temperature of explosive components of GHT-1A is close to that of single-compound explosive RDX. The ARC test results show that, in the ideal adiabatic environment, the initial exothermic temperature for GHT-1A is 138.9℃, the adiabatic temperature rise is 1415.3℃, the time to the maximum rate is 13.8min, and the maximum pressure produced by unit mass is 13.1MPa·g-1. The studies have revealed that, the explosion feasibili- ty of GHT-1A is lower than that of double-base propellant So, but higher than that of single-compound explosive RDX. And the destructive effect of GHT-1A is among the strongest.

关 键 词：固含量 改性双基推进剂 黑索金 绝热分解 热危险性 加速量热仪 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]