CAJ | 학술논문

由非定温热分解的动力学积分方程,当反应深度α取相同数值时,通过评价函数推导出非线性等转化率积分(NL-INT)法求解热分解反应表观活化能的数学表达式.根据升温速率分别为5、10、20 K·min~(-1)的热失重分析曲线,用NL-INT法计算了HMX、HMX基PBX、TATB、PETN炸药和F_(2314)、SD-33黏结剂的热分解表观活化能,并分析和讨论了用NL-INT法和O_(zawa)法的计算结果.研究结果表明,用NL-INT法能克服因近似处理积分式和选择热分解机理函数带来的误差,获得的表观活化能比较准确.
유비정온열분해적동역학적분방정,당반응심도α취상동수치시,통과평개함수추도출비선성등전화솔적분(NL-INT)법구해열분해반응표관활화능적수학표체식.근거승온속솔분별위5、10、20 K·min~(-1)적열실중분석곡선,용NL-INT법계산료HMX、HMX기PBX、TATB、PETN작약화F_(2314)、SD-33점결제적열분해표관활화능,병분석화토론료용NL-INT법화O_(zawa)법적계산결과.연구결과표명,용NL-INT법능극복인근사처리적분식화선택열분해궤리함수대래적오차,획득적표관활화능비교준학.
The mathematics expression of apparent activation energy of thermal decomposition reaction calculated from integral isoconversional non-linear( NL-INT) method was derived from the evaluation function when decomposition extent α was the same value from non-isothermal decomposition kinetic equation. The thermal decomposition apparent activation energy of HMX,HMX based PBX,TATB,PETN explosives and F_(2314) ,SD-33 bonders were calculated by NL-INT method based on the TC curves at heating rates of 5,10 and 20 K · min~(-1),respectively,and the results calculated by NL-INT method and Ozawa's method were analyzed and discussed. Results show that the method can conquer errors caused by approximation of temperature integral and choice of mechanism function,and the apparent activation energy obtained were more nicety.