高性能航空复合材料用环氧树脂的固化反应动力学  

Curing Reaction Kinetics of Epoxy Resins for High Performance Aerospace Composites

作　　者：冯敏 田铁兵 王晋 王萌 赵中杰 FENG Min;TIAN Tiebing;WANG Jin;WANG Meng;ZHAO Zhongjie(AVIC Composite Corporation Ltd.,Beijing 101300,China)

机构地区：[1]中航复合材料有限责任公司,北京101300

出　　处：《高科技纤维与应用》2024年第3期20-23,共4页Hi-Tech Fiber and Application

基　　金：国家重点研发计划资助(2022YFB3709100)。

摘　　要：针对高性能航空复合材料用环氧树脂的固化反应,采用非等温差示扫描量热仪(DSC)对其进行研究。通过模拟n级反应动力学模型,利用Kissinger方程、Arrihenius公式等以及特征温度-升温速率外推法,计算出该固化体系的表观活化能E a、指前因子A和固化反应级数n等动力学参数以及最佳固化温度。结果表明,环氧树脂的固化起始温度T i为142.40℃,固化温度T p为228.26℃,后固化温度T f为267.67℃,固化时间为32 min。The curing reaction of epoxy resins for high performance aerospace composites was studied by non-isothermal DSC(differential scanning calorimetry).By simulating the n-order reaction kinetics model,the Kissinger model,Arrihenius model and the characteristic temperature-warming rate extrapolation method were used to calculate the apparent activation energy E a,pre-exponential factor A,solidification reaction order n and the optimal curing temperature.The results show that the initial temperature(T i)is 142.40℃,the peak temperature(T p)is 228.26℃,the finishing temperature(T f)is 267.67℃,and the curing time is 32 min.

关 键 词：非等温DSC 固化动力学模型 环氧树脂 

分 类 号：TB332[一般工业技术—材料科学与工程]