| 非等温DSC法研究环氧树脂固化反应动力学过程 |
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| 引用本文： | 盛江峰,陈雁芳,琚小双,李爽,罗佳,方天程,朱林华.非等温DSC法研究环氧树脂固化反应动力学过程[J].中国胶粘剂,2013(6):9-12. |
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| 作者姓名： | 盛江峰 陈雁芳 琚小双 李爽 罗佳 方天程 朱林华 |
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| 作者单位： | 振石集团华美复合新材料有限公司;海南师范大学化学与化工学院 |
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| 基金项目： | 海南省高等学校科学研究基金项目(Hjkj2013-18) |
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| 摘 要： | 采用非等温DSC(差示扫描量热)法研究了环氧树脂(EP)体系的固化过程,并采用Kissinger方程、Crane方程和T-β(温度-升温速率)外推法计算出该EP体系固化反应的动力学参数和固化温度。研究结果表明:当m(EP)∶m(填料)∶m(固化剂)∶m(促进剂)=100∶30∶90∶0.4时,EP体系固化反应的表观活化能为78.90 kJ/mol、指前因子为2.58×109min-1和反应级数为0.914,其最佳固化条件为"从室温升温至92℃(开始凝胶)→继续升温至140℃(恒温固化)→最后升温至169℃(进行后固化处理)"。
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| 关 键 词： | 非等温差示扫描量热法 环氧树脂 固化工艺 动力学 |
Curing reaction kinetics process of epoxy resin investigated by non-isothermal DSC method |
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| Sheng Jiangfeng,Chen Yanfang,Ju Xiaoshuang,Li Shuang,Luo Jia,Fang Tiancheng,Zhu Linhua.Curing reaction kinetics process of epoxy resin investigated by non-isothermal DSC method[J].China Adhesives,2013(6):9-12. |
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| Authors: | Sheng Jiangfeng Chen Yanfang Ju Xiaoshuang Li Shuang Luo Jia Fang Tiancheng Zhu Linhua |
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| Affiliation: | 1.Zhenshi Group Huamei New Composite Materials Co.,Ltd.,Tongxiang 314500,China;2.College of Chemistry and Chemical Engineering,Hainan Normal University,Haikou 571127,China) |
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| Abstract: | The curing process of epoxy resin(EP) system was investigated by non-isothermal DSC(differential scanning calorimetry) method,and the kinetics parameters and curing temperatures of curing reaction of EP system were calculated by Kissinger equation、Crane equation and T-β(temperature-heating speed) extrapolation.The research results showed that the apparent activation energy of curing reaction of EP system was 78.90 kJ/mol,pre-exponential factor was 2.58 ×10 9 min-1 and reaction order was 0.914,and its optimal curing conditions was "begin gelation from room temperature to 92 ℃→constant temperature curing at 140 ℃→post-curing processing at 169 ℃" when mass fraction of m(EP)∶m(filler)∶m(curing agent)∶m(accelerant) was 100∶30∶90∶0.4. |
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| Keywords: | non-isothermal differential scanning calorimetry(DSC) method epoxy resin(EP) curing process kinetics |
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