Studies on the Thermal Decomposition Kinetic of an Nitrate Ester
The certain nitrate ester explosive has been tested by TG at the heating rates of 10,15,20,25K·min~.Basing on the TG experiment results the thermal decomposition activation energy has been calculated by the methods of Ozawa,KAS and iteration.And the thermal decomposition mechanism function of the explosive with 38 kinds of dynamic function was deduced by the method of integration.The results show that the thermal decomposition mechanism of the nitrate ester is chemical reaction mechanism.The thermal decomposition kinetic parameters such as average activation energy Ea and pre-exponential factor A are 133.23 × 103 J·mol-1 and 3.191 × 107 s-1 respectively.The reaction mechanism function is f(α)=(1-α)2,and the thermal decomposition kinetic equation is da/dt=kf(α)=A·eE/RT·f(α)=3.191×107×(1-α)2exp-1.602×104/T.
TG thermal analysis kinetic parameter mechanism function kinetic equation
Juan Wang Da-bin Liu Xin-li Zhou
School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing China 210094
国际会议
沈阳
英文
1575-1580
2012-09-07（万方平台首次上网日期，不代表论文的发表时间）