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二甲基二乙氧基硅烷改性环氧树脂的研究
引用本文:苏倩倩,刘伟区,王文荣,刘云峰.二甲基二乙氧基硅烷改性环氧树脂的研究[J].化学建材,2008,24(5):23-25.
作者姓名:苏倩倩  刘伟区  王文荣  刘云峰
作者单位:[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院研究生院,北京100039
基金项目:广州市科技局重点攻关资助项目(项目编号:2006Z3-D0301)
摘    要:采用二甲基二乙氧基硅烷(DMDES)通过物理和化学改性两种方法改性双酚A型环氧树脂。通过对两种方法得到的固化物的玻璃化转变温度(Tg)、拉伸强度及断裂伸长率进行了分析测定,探讨了改性方法、有机硅含量等对材料性能的影响。结果表明,化学改性环氧树脂产物具有更为优良的性能,环氧树脂E-44通过二甲基二乙氧基硅烷(DMDEs)化学反应改性(质量比为100:8)后,拉伸强度达到63.13MPa,断裂伸长率达到11.68%,Tg达到166.07℃;比未改性的纯环氧树脂分别提高了14.19MPa,4.94%,13.54℃。

关 键 词:环氧树脂  二甲基二乙氧基硅烷  改性

Investigation on Epoxy Resin Modified by Diethoxydimethylsilane
Su Qian-qian et al Guangzhou Institute of Chemistry,Chinese Academy of Sciences.Investigation on Epoxy Resin Modified by Diethoxydimethylsilane[J].Chemical Materials for Construction,2008,24(5):23-25.
Authors:Su Qian-qian Guangzhou Institute of Chemistry  Chinese Academy of Sciences
Abstract:Bisphenol A epoxy resin was modified by dimethyldiethoxysilane(DMDES) by means of physical and chemical modification.Analytical testing was carried out of vitrification transition temperature(Tg),tensile strength and fracture elongation of the cured materials obtained by way of the above-mentioned two methods and effects of modification methods and silicone content on material performance were discussed.Testing results showed that chemically modifi ed epoxy resin displayed more superior properties.Epoxy res...
Keywords:epoxy resin  dimethyldiethoxysilane  modifi cation  
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