CAJ | 학술논문

采用热重分析仪( TG)、差示扫描量热仪( DSC)以及加速量热仪( ARC)研究了一种以高氯酸铵( AP )为氧化剂的新型改性双基推进剂GATo-3的热安全性,并将实验结果与双基发射药SF-3进行了比较。通过TG/DSC实验得到了GA-To-3的热分解过程,并初步分析了AP等组分对其热稳定性的影响。 DSC的测试结果显示,GATo-3的2个分解峰温分别为180.5℃和187.7℃,低于SF-3的分解峰温；ARC的测试结果显示,GATo-3在理想绝热条件下的起始分解温度为129.1℃,绝热温升为1177.8℃,最大温升速率为58053.5℃/min,最大压力上升速率为52.5×105 Pa/min,单位质量生成气体的最大压力为112.4×105 Pa/g,用速率常数法计算活化能E=116.8 kJ/mol和指前因子A=5.1×1011 s-1,最大反应速率达到时间为24 h时,所对应起始温度TD24=74.0℃。研究结果表明,与双基发射药SF-3相比,GATo-3的热安全性较差,爆炸性较强。
채용열중분석의( TG)、차시소묘량열의( DSC)이급가속량열의( ARC)연구료일충이고록산안( AP )위양화제적신형개성쌍기추진제GATo-3적열안전성,병장실험결과여쌍기발사약SF-3진행료비교。통과TG/DSC실험득도료GA-To-3적열분해과정,병초보분석료AP등조분대기열은정성적영향。 DSC적측시결과현시,GATo-3적2개분해봉온분별위180.5℃화187.7℃,저우SF-3적분해봉온；ARC적측시결과현시,GATo-3재이상절열조건하적기시분해온도위129.1℃,절열온승위1177.8℃,최대온승속솔위58053.5℃/min,최대압력상승속솔위52.5×105 Pa/min,단위질량생성기체적최대압력위112.4×105 Pa/g,용속솔상수법계산활화능E=116.8 kJ/mol화지전인자A=5.1×1011 s-1,최대반응속솔체도시간위24 h시,소대응기시온도TD24=74.0℃。연구결과표명,여쌍기발사약SF-3상비,GATo-3적열안전성교차,폭작성교강。
The thermal safety of one new-type CMDB GATo-3, with ammonium perchlorate as oxidant ( AP ) , was studied by TG,DSC,and ARC. The test results were compared with double-base propellant SF-3. The thermal decomposition process and the effects of AP on thermal stability of GATo-3 were analyzed by TG/DSC test. TG/DSC test results show that the two decomposition peak temperature are 180.5 ℃ and 187.7℃,which are lower than that of SF-3.ARC test results show that,in an ideal adiabatic en-vironment,the initial exothermic temperature for GATo-3 is 129.12 ℃,the adiabatic temperature rise is 1 177.8 ℃,the maximum self-heating rate is 58 053.5 ℃/min,the maximum pressure rise rate is 52.5×105 Pa/min,and the maximum pressure produced by unit mass is 112.4×105 Pa/g.The activation energy E is 116.8 kJ/mol,the frequency factor A is 5.1×1011 s-1,and TD24 is 734.0℃, which are calculated by the velocity constant method.The studies have revealed that,comparing with SF-3,GATo-3 has worse ther-mal stability and stronger explosiveness.