物理化学学报 >> 2001, Vol. 17 >> Issue (01): 70-73.doi: 10.3866/PKU.WHXB20010115

研究简报 上一篇    下一篇

用加速量热仪研究KClO3/CuO/S/Mg-Al/C6Cl6的热分解

钱新明;王耘;冯长根;郑娆   

  1. 北京理工大学爆炸与安全科学国家重点实验室 北京 100081;北京化工大学机械工程学院 北京 100081
  • 收稿日期:2000-04-21 修回日期:2000-06-14 发布日期:2001-01-15
  • 通讯作者: 王耘 E-mail:yonwang@webpc.edu.cn

Investigation of Thermal Decomposition of KClO3/CuO/S/Mg-Al/C6Cl6 System by Accelerating Rate Calorimeter

Qian xin-Ming;Wang Yun;Feng Chang-Gen;Zheng Rao   

  1. Mechenanics and Engineering Department,Beijing Institute of Technology.Benjing 100081;Mechanics Engineering Department,Benjing University of Chemical Engineering,Benjing 100081
  • Received:2000-04-21 Revised:2000-06-14 Published:2001-01-15
  • Contact: Wang Yun E-mail:yonwang@webpc.edu.cn

关键词: 加速量热仪, 化学反应动力学, 热分解, 烟火剂

Abstract: The thermal decompositions of two systems(NO.1,KClO3(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C6Cl6(4.35%)) and NO.2,(KClO3(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C6Cl6(4.35%)) are studied using Accelerating Rate Caorimeter (ARC).Temperature vs time curve and pressure vs time curve of reactions are shown in Fig.1 and Fig.2 respectively.The basic data including reaction time(1.3 and 7.3 min respectively),initial temperature (159 and 150℃ respectively),temperature at the maximum rate(272 and 272℃ respectively),the maximum pressure (420 and 190kPa respectively) and the activation energies(175.6 and 135.2 kJ mol-1 respectively) of the thermal decomposition are given to evaluate the safety of the two systems.Results indicate that system NO.2 is safer than NO.1.Compared with the traditional methods,ARC technique can be used to measure temperature and pressure of exothermic reaction concurrently,to find the tiny exothermicity and to determine the initial temperature of exothermic reaction.

Key words: Accelerating rate calorimeter, Chemical reaction kinetics, Thermal decomposition, Pyrotechnic