| 含芳香酯基液晶基元环氧树脂固化动力学FTIR研究 |
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| 引用本文： | 陈立新,王汝敏,蓝立文,徐亚洪,廖建伟.含芳香酯基液晶基元环氧树脂固化动力学FTIR研究[J].航空材料学报,2001,21(1):43-46. |
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| 作者姓名： | 陈立新 王汝敏 蓝立文 徐亚洪 廖建伟 |
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| 作者单位： | 1. 西北工业大学化工系,
2. 北京航空材料研究院, |
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| 摘 要： | 应用DTA分析研究了含液晶基元的环氧化物-对羟基苯甲酸对苯二酚二缩水甘油醚与四种芳香胺类固化剂的固化行为，选择了4，4’-二氨基二苯甲烷为固化剂。根据环氧树脂自催化固化反应模型和氨基氢等活性假设，利用傅立叶变换红外光谱法研究了液晶环氧/4，4’-二氨基二苯甲烷体系在90℃、120℃、140℃恒温固化时的动力学行为。结果表明，在反应程度低于40％时，符合自催化模型。
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| 关 键 词： | 液晶环氧 自催化模型 固化行为 |
| 文章编号： | 1005-5053(2001)01-0043-04 |
| 修稿时间： | 2001年1月4日 |
Curing kinetics of a liquid crystalline epoxy with the aromatic ester mesogen by FTIR |
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| CHEN Li-xin,WANG Ru-min,LAN Li-wen,LIAO Jian-wei,Xu Ya-hong.Curing kinetics of a liquid crystalline epoxy with the aromatic ester mesogen by FTIR[J].Journal of Aeronautical Materials,2001,21(1):43-46. |
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| Authors: | CHEN Li-xin WANG Ru-min LAN Li-wen LIAO Jian-wei Xu Ya-hong |
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| Abstract: | The curing processes of diglycidlether of 4 - hydroxyphenyl - 4 - hydroxybenzoate(PHBHQ) with four different amine curing agents were studied by means of the DTA. A suitable curing agent ,4,4'-diaminodiphenyl methane( DDM) was selected as well. Based on the self- catalyzed curing model of epoxy resin and equal activity of hydrogen amino , the isothermal curing processes of PHBHQ/ DDM liquid system at 90℃,120℃,140℃ were monitored by Fourier Transform Infra-Red Spectrum(FTIR). The result showed that the curing process was accorded with the self- catalyzed curing model when the reaction extent bellowed 40%. |
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| Keywords: | liquid crystalline epoxy self catalyzed curing model curing behavior |
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