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Differential and Integral Isoconversional Non-linear Methods and Their Application in Physical Chemistry Study of Energetic Materials Ⅱ. Thermal Decomposition of TNMA,BTNEDA and TNETB
Author(s): 
Pages: 193-195
Year: Issue:  3
Journal: CHINESE JOURNAL OF ENERGETIC MATERIALS

Keyword:  物理化学222-三硝基乙基-N-硝基-甲烷(TNMA)二(222-三硝基乙基-N-硝基)乙二胺(BTNEDA)444-三硝基丁酸-222-三硝基乙酯(TNETB)热分解Bourdon玻璃薄膜压力计等转化率法表观活化能;
Abstract: 采用高灵敏布鲁顿玻璃薄膜压力计研究了真空、高温低装填和低温高装填密度条件下2,2,2-三硝基乙基-N-硝基-甲烷(TNMA)、二(2,2,2-三硝基乙基-N-硝基)乙二胺(BTNEDA)、4,4,4-三硝基丁酸-2,2,2-三硝基乙酯(TNETB)的热分解过程.由热分解气体的标准体积(VH)和分解速度(dVH/dt)对时间(t)的关系曲线,得到了TNMA、BTNEDA和TNETB在不同温度下热分解反应的诱导期(tin)、半分解期(t1/2)、初速(W0)、极大速度(WM)和极大速度到达时间(tM).用非线性等转化率微、积分法所得的表观活化能Ea用于校验由lgx(x=tin、t1/2、W0、WM、tM)-1/T关系得到的表观活化能Ea.结果表明,Ea与各特征值所得的对应Ea间的相对误差在±10%以内.
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