环氧树脂/苯并噁唑二胺体系的固化动力学及热性能研究  

Investigation on curing kinetics and thermal properties of the novel epoxy resin system with heterocyclic ring

作　　者：卢晓东[1] 黄玉东[1] 张春华[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《固体火箭技术》2008年第3期295-298,共4页Journal of Solid Rocket Technology

基　　金：黑龙江杰出青年基金资助项目(JC04-12)

摘　　要：采用DSC法研究了不同升温速率下E51环氧树脂与ABO芳香胺固化体系的固化工艺、固化交联反应动力学参数及树脂体系的热性能。通过分析确定了树脂的基本固化工艺,采用Kissinger、Ozawa方法计算出树脂的表观活化能,其平均值为52.94 kJ/mol,结合Crane公式求出反应级数为1.1,固化反应动力学符合n级反应模型;测得玻璃化转变温度Tg=217℃,热失重曲线表明体系的起始分解温度为361℃。The cure process, cure cross-link reaction kinetic parameters and thermal performance of E51 epoxy resin/ABO cure system under different heating rates were investigated by means of DSC method. The basic cure process was determined through analysis. The apparent activation energy of the resin was calculated by means of Kissinger and Ozawa methods. The results show that its average value is 52.94 kJ/mol ; the cure reaction order calculated by Crane formula is 1.1; the cure reaction kinetics coincide with n order reaction model; glass transition temperature Tg is equal to 217 ℃. The thermogravimetric curves show that initial decomposition temperature of the system is 361 ℃.

关 键 词：环氧树脂 固化反应动力学 玻璃化转变温度 

分 类 号：V255[一般工业技术—材料科学与工程]