| 有机硅改性环氧树脂的合成与性能 |
| |
| 引用本文： | 李因文,沈敏敏,马一静,黄活阳,哈成勇.有机硅改性环氧树脂的合成与性能[J].精细化工,2008,25(11). |
| |
| 作者姓名： | 李因文 沈敏敏 马一静 黄活阳 哈成勇 |
| |
| 作者单位： | 1. 广州化学研究所,中国科学院纤维素化学重点实验室,广东,广州,510650;中国科学院,研究生院,北京,100039
2. 广州化学研究所,中国科学院纤维素化学重点实验室,广东,广州,510650 |
| |
| 基金项目： | 广东省自然科学基金研究团队项目 |
| |
| 摘 要： | 热熔法制备了系列聚甲基苯基硅氧烷(PMPS)改性环氧树脂,通过环氧值、红外光谱(IR)和凝胶色谱(GPC)分析表明,有机硅接枝到了环氧树脂上,且环氧基保持不变。探讨了改性方法、有机硅含量对改性树脂固化体系的微观形态、韧性及耐热性的影响。实验表明,当m(E-20)∶m(DC-3074)=7∶3时,化学改性树脂固化体系的韧性和耐热性能明显提高,玻璃化转变温度(Tg)为88.33℃,质量损失50%时的热分解温度(Td)为487.80℃,分别比物理改性环氧树脂提高了52.63℃和36.75℃,同时此改性树脂固化物还具有优良的涂膜性能。
|
| 关 键 词： | 环氧树脂 聚甲基苯基硅氧烷 改性 耐热性 韧性 功能材料 |
The Synthesis and Properties of Silicone Modified Epoxy Resins |
| |
| LI Yin-wen,SHEN Min-min,MA Yi-jing,HUANG Huo-yang,HA Cheng-yong.The Synthesis and Properties of Silicone Modified Epoxy Resins[J].Fine Chemicals,2008,25(11). |
| |
| Authors: | LI Yin-wen SHEN Min-min MA Yi-jing HUANG Huo-yang HA Cheng-yong |
| |
| Abstract: | A series of polymethylphenylsilicone(PMPS) modified epoxy resin were prepared by a hot-melt method.Epoxy value,IR and GPC indicated that PMPS was incorporated into epoxy resin and epoxy group was intact during the reaction procedure.The toughness and thermal stability of the chemically modified epoxy resins were improved obviously when the mass ratio of epoxy resin to PMPS was 7∶3.Glass transition temperature(Tg) was 88.33 ℃,the 50% weight loss temperature of degradation(Td) was 487.80 ℃,higher than those of physically modified epoxy resins by 52.63 ℃ and 36.75 ℃ respectively.Furthermore the chemically modified epoxy resins showed excellent filming properties. |
| |
| Keywords: | epoxy resin polymethylphenyl silicone modification thermal stability toughness functional materials |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
