| 研究环氧树脂聚酰亚胺树脂凝胶行为的新方法 |
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| 引用本文： | 张明,安学锋,李小刚,益小苏. 研究环氧树脂聚酰亚胺树脂凝胶行为的新方法[J]. 热固性树脂, 2005, 20(5): 5-9 |
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| 作者姓名： | 张明 安学锋 李小刚 益小苏 |
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| 作者单位： | 北京航空材料研究院,北京,100095 |
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| 基金项目： | 国家973课题资助项目（2003CB615604）. |
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| 摘 要： | 为了优化双组分环氧树脂和PMR型聚酰亚胺树脂的固化工艺,选用DMA圆盘压缩夹具,采用等温模式分别测定了这2种树脂的凝胶行为,给出了其凝胶动力学数学模型,计算了树脂的凝胶活化能为75.68 kJ/g。在聚酰亚胺树脂凝胶实验结果的基础上,推测该聚酰亚胺体系在310℃前后可能存在不同的固化反应机理。
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| 关 键 词： | 环氧树脂 聚酰亚胺 凝胶 DMA |
| 文章编号： | 1002-7432（2005）05-0005-05 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-05-20 |
A new method for the gelation behavior study on epoxy and polyimide resins |
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| ZHANG Ming,AN Xue-feng,LI Xiao-gang,YI Xiao-su. A new method for the gelation behavior study on epoxy and polyimide resins[J]. Thermosetting Resin, 2005, 20(5): 5-9 |
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| Authors: | ZHANG Ming AN Xue-feng LI Xiao-gang YI Xiao-su |
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| Affiliation: | Beijing Institute of Aeronautics Materials, Beijing 100095 , China |
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| Abstract: | The DMA round disk compression clamp and an isothermal mode were employed to determine the gelation behavior of a bi-component epoxy and a PMR polyimide to optimize thier curing process.The gelation kinetic mathematical models of the two resin systems were obtained respectively as well as the gelation active energy was calculated that Ea=75.68 kJ/g.Two different cure reaction mechanisms were presumed on each side of 310 ℃,based on the gained result. |
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| Keywords: | epoxy resin polyimide gelation DMA |
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