| 环氧树脂/改性纳米Y2O3复合材料的固化动力学 |
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| 引用本文： | 周红军,容敏智,邓小安,陈明芳.环氧树脂/改性纳米Y2O3复合材料的固化动力学[J].广州化工,2014(1):56-58. |
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| 作者姓名： | 周红军 容敏智 邓小安 陈明芳 |
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| 作者单位： | [1]中山大学化学与化学工程学院,广东广州510275 [2]广东普赛特电子科技股份有限公司,广东东莞523808 [3]仲恺农业工程学院,广东广州510225 |
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| 摘 要： | 利用缩聚反应,通过"一步法"在经过偶联剂处理的纳米氧化钇(Y2O3)粒子表面接枝超支化聚酯,得到超支化聚酯接枝改性纳米氧化钇(Y2O3-g-HBPE)。研究了Y2O3-g-HBPE对环氧树脂非等温固化行为的影响,利用Kissinger和Crane方程研究了固化动力学参数。结果表明,Y2O3-g-HBPE降低了环氧树脂固化反应的活化能,但没有改变环氧树脂的固化机理。
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| 关 键 词： | 环氧 超支化聚酯 纳米氧化钇 固化动力学 |
Curing Kinetics of EP /Hyperbranched Polyesters Grafted Nano-Y2O3 Composites |
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| ZHOU Hong-jun;RONG Min-zhi;DENG Xiao-an;CHEN Ming-fang.Curing Kinetics of EP /Hyperbranched Polyesters Grafted Nano-Y2O3 Composites[J].GuangZhou Chemical Industry and Technology,2014(1):56-58. |
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| Authors: | ZHOU Hong-jun;RONG Min-zhi;DENG Xiao-an;CHEN Ming-fang |
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| Affiliation: | ZHOU Hong -jun, RONG Min - zhi, DENG Xiao - an, CHEN Ming -fang(1 College of Chemistry and Chemical Engineering, Sun Yat- sen University, Guangdong Guangzhou 510275; 2 Guangdong Perfection Science and Technology Co. , Ltd. , Guangdong Dongguan 523808 ; 3 College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangdong Guangzhou 510225, China) |
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| Abstract: | The Yttrium oxide（Y2O ） nanoparticles were pretreated with a silane coupling agent,and then grafted by hyperbranched polyesters via in situ polycondensation,which named Y2O3-g-HBPE,and the modified nanoparticles were characterized by fourier transform infrared spectroscopy（ FTIR）. Epoxy resin（ EP） Y2O3-g-HBPE composites were prepared by solution blending. The curing kinetics of epoxy resin composites were measured by nonisothermal differential scanning calorimetry（DSC）. The kinetics parameters were obtained by using Kissinger and Crane equation. The results showed that Y2O3-g-HBPE decreased the activation energy,but did not change the overall curing reaction mechanism. |
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| Keywords: | epoxy resin hyperbranched polyesters nano-Y2O3 cure kinetics |
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