基于热重分析法的丙烯酸酯基隔音复合材料热分解分析  

Analysis of Thermal Decomposition of Acrylate Based Acoustic Insulation Composite Based on Thermogravimetry

作　　者：唐婷[1] 何栋[1] TANG Ting;HE Dong(Xi'an Polytechnic of Aeronautics,Xi'an 710089,Shaanxi,China)

机构地区：[1]西安航空职业技术学院,陕西西安710089

出　　处：《合成材料老化与应用》2020年第6期150-152,共3页Synthetic Materials Aging and Application

摘　　要：引入动态机械热分析仪(DMA),利用该装置分析丙烯酸酯基隔音复合材料的性能,明确使用温域的实际情况,通过对热重分析法(TG)的应用,创建空气气氛环境,分析各升温速率下该复合材料所表现出的热分解情况。根据结果得知,该材料使用温域为-37.1℃~80℃,置于300℃的环境中,失重率维持在1.3%~4.5%;基于方程分析的方式明确热分解动力学常数,经参数计算后求得热分解活化能,得知Kissinger方程中为207.45kJ/mol,Flynn-Wall-Ozawa方程中为207.59kJ/mol。Dynamic mechanical thermal analyzer(DMA)was introduced to analyze the performance of acrylic ester based acoustic insulation composite materials,and the actual situation of temperature domain was clarified.Through the application of thermogravimetric analysis(TG),the air atmosphere environment was created,and the thermal decomposition of the composite material was analyzed under each heating rate.According to the results,the temperature range of the material is-37.1℃~80℃.When placed in an environment of 300℃,the weight loss rate is maintained at 1.3%~4.5%.The kinetic constants of thermal decomposition were determined based on equation analysis.After parameter calculation,the activation energy of thermal decomposition was obtained,and it was found that 207.45kJ/mol in the equation of Kissinger and 207.59kJ/mol in the equation of Flynn-Wall-Ozawa.

关 键 词：丙烯酸酯 隔音复合材料 热分解 动力学 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]