【摘要】 对不同温度(95℃、85℃、75℃和65℃)下分别老化不同时间的高能硝铵发射药、太根发射药和硝基胍发射药进行了有效安定剂含量的跟踪测试。通过数据分析获得了有效安定剂消耗反应的动力学参数Ea、lnA和最可几机理函数g(α)。结果表明,g(α)=-ln(1-α)能够较好地描述高能发射药中安定剂的消耗反应,回归相关系数大于0.98,置信度大于95%。高能发射药中有效安定剂消耗反应的活化能在110~160 kJ.mol-1之间,高能硝胺发射药安定剂反应的活化能高于太根发射药,硝基胍发射药介于两者之间。更多还原

【Abstract】 The accelerated aging tests of high energy nitramine propellants,trietheleneglycol dinitrate(TEGN) propellants and nitroguanidine propellants at various temperatures(95,85,75 and 65 ℃) were carried out.The contents of the effective stabilizer in propellants for various accelerated aging times were measured.The kinetic parameters Ea and lnA of effective stabilizer consumption reaction and the probable mechanism functions g(α) were obtained.Results show that the stabilizer consumption reaction in high energy gun propellants can be described preferably by g(α)=-ln(1-α).The regressive correlation coefficients are more than 0.98.The confidence limits are more than 95%.The apparent activation energies of the effective stabilizer consumption reaction are between 110 kJ·mol-1 and 160 kJ·mol-1.Activation energies of high energy nitramine propellants are more than that of TEGN propellants.Activation energies of nitroguanidine propellants are between the other two propellants.更多还原