| 相反转法制备水性环氧树脂及其固化动力学 |
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| 引用本文： | 张雪芳,高俊刚,吕红秋.相反转法制备水性环氧树脂及其固化动力学[J].高分子材料科学与工程,2012(7):128-131. |
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| 作者姓名： | 张雪芳 高俊刚 吕红秋 |
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| 作者单位： | 河北大学化学与环境科学学院 |
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| 基金项目： | 河北省自然科学基金资助项目(E2010000287) |
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| 摘 要： | 以琥珀酸酐、聚乙二醇、E-51为原料合成了非离子型乳化剂,利用相反转法制备了水性环氧树脂乳液和水性环氧固化剂。用红外光谱(FT-IR)、差示扫描量热(DSC)和热重分析(TGA)研究了水性环氧树脂与甲基四氢苯酐(MeTHPA)的热稳定性和固化机理。结果表明,水性环氧树脂与MeTHPA已固化完全;固化反应符合两个参数的自催化esták-Berggre(S-B)模型,固化反应的平均表观活化能为73.95 kJ/mol。MeTHPA与环氧树脂物质的量比为0.6的热稳定性最好。
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| 关 键 词： | 环氧树脂 甲基四氢苯酐 琥珀酸酐 固化反应 动力学 |
Preparation of Water-Borne Epoxy Resin by Phase Inversion and Non-Isothermal Cure Kinetics |
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| Xuefang Zhang,Jungang Gao,Hongqiu Lv.Preparation of Water-Borne Epoxy Resin by Phase Inversion and Non-Isothermal Cure Kinetics[J].Polymer Materials Science & Engineering,2012(7):128-131. |
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| Authors: | Xuefang Zhang Jungang Gao Hongqiu Lv |
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| Affiliation: | (College of Chemistry and Environmental Science,Hebei University,Baoding 071002,China) |
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| Abstract: | Non-ionic water-borne epoxy resin and cure agent was prepared from succinic anhydride,polyether glycol(EG-2000),bisphenol A epoxy resin(E-51) and 3-methyl-tetrahydrophthalic anhydride(MeTHPA) via the phase inversion technique.The curing mechanism,kinetics and thermal properties were investigated by Fourier transform infrared spectra(FT-IR),thermogravimetric analysis(TGA) and differential scanning calorimetry(DSC).The results showed that the MeTHPA had reacted with the epoxy group.The curing reaction could be described by autocatalytic esták-Berggre model and the kinetic equation of the curing reaction was obtained.The average activation energy Ea is 73.953 kJ/mol.When the proportion of MeTHPA with epoxy is 0.6,this material has best thermal stability,the temperature of 5% mass loss is 334.02 ℃ and the residual yield is 29.1% at 500 ℃. |
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| Keywords: | water-borne epoxy resin 3-methyl-tetrahydrophthalic anhydride succinic anhydride curing reaction kinetics |
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