摘要
使用DTG-60(AH)热重分析仪分析了玻璃纤维/环氧树脂泡沫夹层板在不同升温速率和不同氧含量条件下的热分解特性。结果表明,在空气中玻璃纤维/环氧树脂泡沫夹层板的热分解反应可分为三个阶段。随着升温速率的提高,热分解反应的初始反应温度、终止反应温度以及最大质量损失速率温度均向高温方向移动。氧含量的降低对热分解的第三阶段有较大的影响。采用Flynn-Wall-Ozawa法和Starink法进行热解动力学分析,得到玻璃纤维/环氧树脂泡沫夹层板的表观活化能。
The thermal decomposition characteristics of glass fiber/epoxy foam sandwich panels was studied via DTG-60(AH)thermogravimetric analyzer by different heating rates and in three atmospheres with different oxygen contents.The results show that the pyrolysis reaction of glass fiber/epoxy foam sandwich panels in air can be differentiated into three stages.As the heating rate increases,the initial reaction temperature,the termination reaction temperature and the maximum mass loss rate temperature of the pyrolysis reaction shifted to the high temperature.The decrease of oxygen content in atmospheres has a greater impact on the third stage of thermal decomposition.The pyrolysis kinetics were analyzed by the Flynn-Wall-Ozawa method and the Starink method to obtain the apparent activation energy.
作者
陈松华
徐艳英
王志
王静
CHEN Songhua;XU Yanying;WANG Zhi;WANG Jing(School of Safety Engineering,Shenyang Aerospace University,Shenyang 110136,China;Liaoning Key Laboratory of Aircraft Safety and Airworthiness,Shenyang Aerospace University,Shenyang 110136,China;School of Materials Science and Engineering,Shenyang Aerospace University,Shenyang 110136,China)
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2019年第9期699-704,共6页
Chinese Journal of Materials Research
基金
国家自然科学基金(51403129)
辽宁省自然科学基金(2018550705)
辽宁省教育厅科学技术项目(JYT19065)~~
