| 热固性酚醛树脂固化环氧树脂反应动力学研究 |
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| 引用本文： | 黄勇,陈晓峰,刘俊红.热固性酚醛树脂固化环氧树脂反应动力学研究[J].四川理工学院学报(自然科学版),2009,22(5). |
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| 作者姓名： | 黄勇 陈晓峰 刘俊红 |
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| 作者单位： | 1. 四川化工职业技术学院,四川,泸州,646005
2. 四川理工学院材料与化学工程学院,四川,自贡,643000 |
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| 摘 要： | 文章采用非等温DSC法研究了酚醛/环氧树脂/TA催化剂体系热固化动力学:Friedman法确定了固化动力学参数,动力学模拟建立了固化机理模型函数。结果表明:该体系放热曲线存在一个放热峰;可用Bna反应模式机理函数描述热固化反应过程,反应模式为枝状成核的自催化反应。由模型函数得出的反应时间与反应程度关系发现:温度为160℃,反应时间为30m in时,该体系反应程度达到了90%,为固化工艺条件的选择提供了依据。
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| 关 键 词： | 非等温固化 固化动力学 酚醛树脂 环氧树脂 |
Non-isothermal Curing Kinetics of Phenolic Resin/Epoxy Resin Composite |
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| HUANG Yong,CHENG Xiao-feng,LIU Jun-hong.Non-isothermal Curing Kinetics of Phenolic Resin/Epoxy Resin Composite[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2009,22(5). |
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| Authors: | HUANG Yong CHENG Xiao-feng LIU Jun-hong |
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| Abstract: | Non-isothermal analysis kinetics method(Friedman method) and linear heating-up data of DSC is used to study the mechanism model of Phenolic Resin/Epoxy Resin/TA by thermal curing.From the results of thermal analysis kinetics,there is only one peak in PF/E-44/TA.The curing mechanism of PF/ E-44/TA can be well fitted to Bna model of the mechanism.From the curve of conversion of time and temperature,it shows that when temperature holds constancy at 160℃ for 30 minutes,the conversion of PF/E-44/TA reaches 90%.The result of the thermal analysis is an effective way to study mechanism and to determine the curing processing of thermal plastics. |
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| Keywords: | non-isothermal curing curing mechanism phenolic resin epoxy resin |
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