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间苯二酚缩水甘油醚/间苯二甲胺体系的热机械性能和固化动力学

Thermal Mechanical Properties and Curing Kinetics of Resorcinol Diglycidyl Ether/m-Xylylene Diamine
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摘要 利用热分析技术对具有高温快速固化性能的间苯二酚缩水甘油醚/间苯二甲胺体系的热机械性能和表观固化反应动力学进行了研究。热机械性能分析(DMA和TMA)结果表明,间苯二酚缩水甘油醚/间苯二甲胺固化产物的玻璃化转变温度为83℃,室温下储能模量为2600 MPa,玻璃态热膨胀系数(α1)为54.9×10-6℃-1,橡胶态的线性热膨胀系数(α2)为177.9×10-6℃-1。通过恒温和非恒温模式差示扫描量热(DSC)测试得到体系的表观反应活化能为62.7 kJ/mol,由此估算出固化反应在160℃时仅需数秒即可完成。 The thermal and mechanical properties of a fast curing system,resorcinol diglycidyl ether/m-xylylene diamine(RDGE/XDA),were investigated by means of thermal analysis techniques.The results of dynamic mechanical analysis(DMA) and thermo-mechanical analysis(TMA) show that the glass transition temperature of RDGE/XDA is 83 ℃,and the storage modulus at room temperature is 2600 MPa.The coefficients of thermal expansion corresponding to the glassy and rubbery state is 54.9×10-6 ℃-1 and 177.9×10-6 ℃-1,respectively.The apparent activation energy obtained through isothermal and non-isothermal differential scanning calorimetry(DSC) measurement is 62.7 kJ/mol.Thus,the curing process of RDGE/XDA takes only a few seconds at 160 ℃ estimated from the curing rate at lower temperature and the apparent activation energy.
作者 杨庆旭 肖斐
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2012年第6期72-75,共4页 Polymer Materials Science & Engineering
基金 国家科技重大专项(2009ZX02038)
关键词 间苯二酚缩水甘油醚 间苯二甲胺 热机械性能 固化动力学 resorcinol diglycidyl ether m-xylylene diamine thermal-mechanical property curing kinetics
作者简介 通讯联系人:肖斐,主要从事电子封装技术研究,E-mail:feixiao@fudan.edu.cn
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参考文献7

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