| 纳米SiO2表面接枝改性及其结构表征 |
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| 引用本文： | 郭清兵,谭赟华,陈江华,李翠金,肖乃玉.纳米SiO2表面接枝改性及其结构表征[J].表面技术,2010,39(3):6-9. |
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| 作者姓名： | 郭清兵 谭赟华 陈江华 李翠金 肖乃玉 |
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| 作者单位： | 仲恺农业工程学院化学化工学院,广州,510225;佛山市环境监测中心站,佛山,528000;广东省安全科学技术研究所,广州,510060 |
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| 摘 要： | 为了提高纳米SiO2粒子与环氧树脂基体的界面作用力,促进其在基体中的分散,选择苯乙烯和马来酸酐作为单体对纳米SiO2粒子进行化学接枝改性。用红外光谱和核磁共振法对接枝的纳米粒子进行表征,用透射电镜和动态光散射对粒子分散性进行研究,结果表明,接枝链通过化学键接在纳米粒子表面,使得粒子分散性能得到提高。对影响接枝效果的引发剂浓度、单体浓度、反应时间、引发剂引发时间等因素进行了优化,得到了纳米粒子接枝的最佳反应条件。
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| 关 键 词： | 纳米SiO2粒子 接枝改性 结构表征 |
| 收稿时间： | 2010/2/26 0:00:00 |
| 修稿时间： | 2010/6/10 0:00:00 |
Grafting Modification and Structure Characterization of Nanosilica |
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| GUO Qing-bing,TAN Yun-hu,CHEN Jiang-hu,LI Cui-jin and XIAO Nai-yu.Grafting Modification and Structure Characterization of Nanosilica[J].Surface Technology,2010,39(3):6-9. |
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| Authors: | GUO Qing-bing TAN Yun-hu CHEN Jiang-hu LI Cui-jin and XIAO Nai-yu |
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| Affiliation: | GUO Qing-bing1,TAN Yun-hua2,CHEN Jiang-hua3,LI Cui-jin1,XIAO Nai-yu1(1.Zhongkai University of Agriculture , Engineering,Guangzhou 510225,2.Foshan Environmental Monitoring Center,Foshan 528000,China,3.Guangdong Institute of Safety Science , Technology,Guangzhou 510060,China) |
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| Abstract: | In order to improve the interfacial effort between nano-SiO2 and epoxy and to promote the dispersivity of nano-SiO2 in it,the nano-SiO2 was grafted with polystyrenemaleic anhydride through chemical grafting modification.Infrared spectra and nuclear magnetic resonance were used to characterize the structure of grafted nano-SiO2,while transmission electron microscopic and dynamic light scattering were used to study the dispersivity of grafted and un-grafted nano-SiO2.The experimental results show that the gra... |
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| Keywords: | nano-SiO2 particle grafting modification structure characterization |
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