聚叠氮缩水甘油醚GAP热分解特性研究  

Study on Thermal Decomposition Characteristics of Glycidyl Azide Polymer

作　　者：梁磊[1] 耿孝恒[2] 

机构地区：[1]太原科技大学环境与安全学院,太原030024 [2]滨州学院城市与环境系,山东滨州256600

出　　处：《太原科技大学学报》2013年第2期157-160,共4页Journal of Taiyuan University of Science and Technology

基　　金：太原科技大学青年基金(20123008)

摘　　要：在升温速率分别为2℃.min-1,5℃.min-1,10℃.min-1,20℃.min-1条件下,采用差示扫描量热仪(DSC)和热重分析技术研究了聚叠氮缩水甘油醚GAP的热分解特性,并在此基础上考察了GAP的动力学参数和热力学参数。结果表明GAP热分解峰温较高,热稳定性较好。采用Kissinger法和Ozawa-Doyle法讨论了热分解的表观活化能、指前因子、120℃时的分解速率常数k,其值分别为196.82 kJ.mol-1、4.47×1019s-1、3.15×10-7s-1.在218℃时热力学参数的活化熵为127.13 J.mol-1.K-1,活化焓为196.82 kJ.mol-1,活化自由能为134.38 kJ.mol-1.The thermal decomposition characteristics of Glyeidyl Azide Polymer （GAP）at heating rates of 2,5,10 and 20 K·min- 1 were respectively investigated by the means of differential scanning calorimetry（DSC） and Ther- mal gravimetric analysis（TG）. On this basis, the kinetic parameters and the thermodynamic parameters were also calculated and studied. Results show that Glycidyl Azide Polymer （GAP） has high thermal decomposition peak tem- perature and good thermal stability. The apparent activation energy, the pre-exponential factor, and the decomposi- tion rate constant of thermal decomposition at 120 ℃ was respectively calculated by the modus of Kissinger and Ozawa-Doyle,and the corresponding results were 212.66 kJ ·mol-1 ,2.0 × 10^21 s^-1 and 1.1 × 10^-7 s^-1. The val- ues of entropy of activation, enthalpy of activation and free energy of activation of the reaction at 218 ℃ are 127.13 J ·mol^-1· K-1196.8 kJ·mol^-1 and 134.38 kJ ·mol^-1.

关 键 词：GAP 热分解 动力学参数 热力学参数 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程] TJ7[兵器科学与技术—武器系统与运用工程]