3-氨基-4-亚硝基呋咱的热分解动力学  

Thermal Decomposition Kinetics of 3-Amino-4-nitrosofurazan

作　　者：张明燕 陈利平[1] 吴文倩 王顺尧 陈网桦[1] ZHANG Ming-yan;CHEN Li-ping;WU Wen-qian;WANG Shun-yao;CHEN Wang-hua(School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Jinling Institute Technology, Nanjing 211169, China)

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]金陵科技学院,江苏南京211169

出　　处：《火炸药学报》2020年第5期516-520,I0003,共6页Chinese Journal of Explosives & Propellants

基　　金：国家重点研究发展计划(2017YFC0804701-4)。

摘　　要：为了解3-氨基-4-亚硝基呋咱(ANSF)的热稳定性,用差示扫描量热仪(DSC)研究了ANSF在不同升温速率及等温条件下的热分解特性,分别采用无模型法和模型拟合法计算了该物质分解反应动力学参数。动态测试结果表明,ANSF分解反应具有起始温度低、比放热量大的特点,其平均比放热量可达2945J/g;等温测试结果表明,其在液态和固态条件下都具有自催化分解特性,通过无模型法计算得到该反应活化能随转化率的变化明显,表明反应过程复杂,不能用单步反应动力学进行描述。根据简化的Benito-Perez模型计算得到引发反应阶段活化能为114.75kJ/mol,自催化阶段活化能为109.02kJ/mol。ANSF热稳定性差,液态和固态分解均具有自催化特性,反应活化能低。To study the thermal stability of 3-amino-4-nitrosofurazan(ANSF),the thermal decomposition characteristics of ANSF were studied by differential scanning calorimetry(DSC)at different heating rates under isothermal conditions.The decomposition reaction kinetic parameters were calculated by model-free method and model-based method.The dynamic test results show that the onset temperature of ANSF is very low and the heat release is very large.The average specific heat release is up to 2945J/g.The isothermal DSC curves show that the decomposition of ANSF is autocatalytic both at liquid and solid phase.The activition energy obtained by model-free method changes obviously with the conversion rate,indicating that the decomposition reaction is complex and can′t be described by a single step mechanism.The apparent activation energy of the initial stage and autocatalytic stage calculated by simplified Benito-Perez model are 114.75kJ/mol and 109.02kJ/mol,respectively.ANSF has poor thermal stability and the decomposition is autocatalytic both at solid and liquid phase with low activation energy.

关 键 词：物理化学 3-氨基-4-亚硝基呋咱 ANSF 自催化 热分解 模型动力学 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O642.1[理学—物理化学]