| 纳米二氧化硅表面改性研究 |
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| 引用本文： | 李金玲,王宝辉,李莉,张钢强,盖翠萍,杨雪凤,邵丽英,隋欣.纳米二氧化硅表面改性研究[J].材料开发与应用,2011,26(2):18-21. |
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| 作者姓名： | 李金玲 王宝辉 李莉 张钢强 盖翠萍 杨雪凤 邵丽英 隋欣 |
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| 作者单位： | 东北石油大学化学化工学院,黑龙江大庆,163318 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 采用甲苯二异氰酸酯(TDI)接枝聚乙二醇(PEG)对纳米SiO2进行表面改性,并利用红外光谱(FTIR)和热重(TG)、扫描电镜(SEM)、粒径分析、重力沉降法等方法对改性前后的纳米SiO2的表面形貌和在介质中的分散稳定性进行了表征和分析.结果表明,改性后的纳米SiO2表面接枝上了TDI、PEG的有机官能团,降低了颗粒...
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| 关 键 词： | 纳米SiO2 表面改性 分散性 |
Study on the Surface Modification of Nano-SiO2 Powder |
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| LI Jin-ling,WANG Bao-hui,LI Li,ZHANG gang-qiang,GAI Cui-ping,YANG Xue-feng,SHAO Li-ying,SUI Xin.Study on the Surface Modification of Nano-SiO2 Powder[J].Development and Application of Materials,2011,26(2):18-21. |
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| Authors: | LI Jin-ling WANG Bao-hui LI Li ZHANG gang-qiang GAI Cui-ping YANG Xue-feng SHAO Li-ying SUI Xin |
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| Affiliation: | (Chemistry and Chemical Engineering College,Northeast Petroleum University,Daqing 163318,China) |
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| Abstract: | The particle surface of Nano-SiO2 powder was modified with toluene diisocyanate(TDI) grafted polyethylene glycol(PEG).The effect of surface modification and dispersion stability in medium were characterized by means of FTIR,TG,SEM,particle size analysis and gravity sedimentation method.It was found that the organic functional groups of TDI and PEG were grafted on the surface of modified nano-SiO2,the agglomeration degree of nano-SiO2 was reduced and the dispersion was improved greatly.Oplimized molar ratio of TDI to PEG was 1:0.8,and the corresponding grafting rate was 54.03%. |
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| Keywords: | Nano-SiO2 Surface modification Dispersion |
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