Estimation of Critical Temperature of Thermal Explosion for Energetic Materials Based on Non-isothermal Kinetic Equation dα/dt =A_0 exp(bT)[1+(T–T_0 )b]f(α)  

作　　者：ZHAO Feng-qi HU Rong-zu ZHANG Hai GAO Hong-xu ZHAO Hong-an MA Hai-xia 

机构地区：[1]Xi ＇an Modern Chemistry Research Institute, Xi ＇an 710065, P. R. China [2]Department of Mathematics/nstitute of Data Analysis and Computed Chemistry [3]College of Communication Science and Engineering [4]College of Chemical Engineering, Northwest University, Xi ＇an 710069, P. R. China [5]Institute of System and lnformation Science, Xi＇an Jiaotong University, Xi ＇an 710049, P. R. China

出　　处：《Chemical Research in Chinese Universities》2010年第5期829-832,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No.20573098)

摘　　要：Critical temperature（Tb） of thermal explosion for energetic materials is estimated from Semenov＇s thermal explosion theory and the non-isothermal kinetic equation da/dt=Aoexp（bT）[1＋（T-T0）b][（a） deduced via reasonable hypotheses, where To is the initial point of the deviation from the baseline of DSC curve. The final formula is （Tb-Te0）{ 1＋1/[1＋（ Tb-T00）b]}=1. We can easily obtain the initial temperature（T0/） and onset temperature（Tci） from the non-isothermal DSC curves, the values of Too and Tc0 from the equation TOi or ei=T00 or c0＋α1βi＋a2βi^2＋…＋aL-2L-2βiL-2, i=1,2,…L, the value of b from the equation： In[β/（Tei-T0i）]=ln[A0/G（a）]＋bTei, so as to calculate the value of Tb. The result obtained with this method coincides completely with the value of Tb obtained by Hu-Yang-Liang-Wu method.Critical temperature（Tb） of thermal explosion for energetic materials is estimated from Semenov＇s thermal explosion theory and the non-isothermal kinetic equation da/dt=Aoexp（bT）[1＋（T-T0）b][（a） deduced via reasonable hypotheses, where To is the initial point of the deviation from the baseline of DSC curve. The final formula is （Tb-Te0）{ 1＋1/[1＋（ Tb-T00）b]}=1. We can easily obtain the initial temperature（T0/） and onset temperature（Tci） from the non-isothermal DSC curves, the values of Too and Tc0 from the equation TOi or ei=T00 or c0＋α1βi＋a2βi^2＋…＋aL-2L-2βiL-2, i=1,2,…L, the value of b from the equation： In[β/（Tei-T0i）]=ln[A0/G（a）]＋bTei, so as to calculate the value of Tb. The result obtained with this method coincides completely with the value of Tb obtained by Hu-Yang-Liang-Wu method.

关 键 词：Critical temperature Thermal exolosion DSC Energetic material NON-ISOTHERMAL 

分 类 号：O316[理学—一般力学与力学基础] TM26[理学—力学]