HTPE推进剂安全特性研究
发布时间：2019-06-28 20:45
【摘要】：HTPE推进剂作为当今钝感推进剂的典型代表,由于其显著的钝感性能和力学性能具有良好的推广应用前景。为了优化HTPE推进剂配方,本文选取了两种AP/PSAN固含量不同的HTPE推进剂配方H01和H02作为研究对象,探讨其安全性。首先,采用差示扫描量热仪(DSC)和绝热加速量热仪(ARC)分别研究了H01和H02在动态升温条件下和绝热条件下的热分解特性,并计算了热分解动力学参数：其次,利用慢速烤燃试验(Slow Cook-off Test)和快速烤燃试验(Fast Cook-off Test)研究了H01和H02在不同烤燃条件下的响应特性；最后,通过H01和H02的热辐射通量计算以及隔板试验,确定了两种HTPE推进剂配方的危险性等级。结果表明：在线性升温条件下,H01和H02的第一段分解放热峰是增塑剂A3的分解过程,其起始分解温度均在157～186℃之间,相同升温速率下两者的起始分解温度和峰温基本一致,第一段热分解活化能大小相当；在绝热条件下,H01的起始分解温度(147.78℃)高于H02的起始分解温度(136.44℃),H01热分解过程中的绝热温升大于H02的绝热温升,H01热分解过程中的最大温升速率和最大压升速率都大于H02,H01的热稳定性相对较好；在慢速烤燃试验中,H01和H02的响应温度分别是119.6℃和130.8℃,响应等级分别为燃烧和爆轰；在快速烤燃试验中,H01和H02的响应时间分别为67s和81s,响应等级均为快速热分解；利用氧弹式量热仪测得H01和H02的燃烧热分别为11.54MJ·Kg-1和12.03 MJ·Kg-1,通过小型燃烧试验测得H01和H02 100kg样品的燃烧时间分别为100秒和84秒,计算得到H01在5m和15m处的热辐射通量分别为12.13 kW.m-2和1.35 kW·m-2,H02在5m和15m处的热辐射通量分别为15.05 kW.m-2和1.67 kW·m-2,表明两种推进剂发生燃烧时,热辐射通量满足1.4级的标准；隔板试验中,H01和H02在受到7GPa冲击压力条件下,都会发生整体爆轰,表明这两种推进剂都具有整体爆轰的特性,最终将H01和H02归为1.1项。
[Abstract]:As a typical representative of insensitive propellants, HTPE propellants have a good prospect of popularization and application because of their remarkable insensitive properties and mechanical properties. In order to optimize the formulation of HTPE propellants, two kinds of HTPE propellants H01 and H02 with different AP/PSAN solid content were selected as the research objects, and their safety was discussed. Firstly, the thermal decomposition characteristics of H01 and H02 under dynamic heating and insulation conditions were studied by differential scanning Calorimeter (DSC) and adiabatic accelerated Calorimeter (ARC), respectively, and the kinetic parameters of thermal decomposition were calculated. Secondly, the response characteristics of H01 and H02 under different burning conditions were studied by slow burning test (Slow Cook-off Test) and rapid burning test (Fast Cook-off Test). Finally, through the calculation of heat radiation flux of H01 and H02 and the partition test, the risk grade of two kinds of HTPE propellants was determined. The results show that under the condition of linear heating, the first stage liberation heat peak of H01 and H02 is the decomposition process of plasticizer A3, and the initial decomposition temperature is between 157 鈩，
本文编号：2507603
[Abstract]:As a typical representative of insensitive propellants, HTPE propellants have a good prospect of popularization and application because of their remarkable insensitive properties and mechanical properties. In order to optimize the formulation of HTPE propellants, two kinds of HTPE propellants H01 and H02 with different AP/PSAN solid content were selected as the research objects, and their safety was discussed. Firstly, the thermal decomposition characteristics of H01 and H02 under dynamic heating and insulation conditions were studied by differential scanning Calorimeter (DSC) and adiabatic accelerated Calorimeter (ARC), respectively, and the kinetic parameters of thermal decomposition were calculated. Secondly, the response characteristics of H01 and H02 under different burning conditions were studied by slow burning test (Slow Cook-off Test) and rapid burning test (Fast Cook-off Test). Finally, through the calculation of heat radiation flux of H01 and H02 and the partition test, the risk grade of two kinds of HTPE propellants was determined. The results show that under the condition of linear heating, the first stage liberation heat peak of H01 and H02 is the decomposition process of plasticizer A3, and the initial decomposition temperature is between 157 鈩，
本文编号：2507603
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