| 水性聚氨酯包封原生SiO2纳米复合材料的制备及表征 |
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| 引用本文： | 孙多先,贾海东,郭长海,朱岩.水性聚氨酯包封原生SiO2纳米复合材料的制备及表征[J].现代化工,2003,23(1):41-43. |
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| 作者姓名： | 孙多先 贾海东 郭长海 朱岩 |
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| 作者单位： | 天津大学化工学院高分子科学与工程系,天津,300072 |
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| 摘 要： | 主要研究了SiO2 /水性聚氨酯 (WPU)无机 -有机纳米复合物的制备方法。TEM和动态光散射分析表明 ,SiO2 /WPU纳米复合物粒子分散于WPU胶束内部 ,粒径在 60nm左右 ,具有核 -壳型结构的纳米级微粒。体系有着良好的稳定性和透光性 ,并且其随着SiO2 含量的增加而降低。胶束良好的包覆作用 ,抑制了纳米粒子的团聚 ,是保持其良好的稳定性和较小粒径的原因
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| 关 键 词： | 纳米复合物 二氧化硅/水性聚氨酯 核-壳 包 |
| 文章编号： | 0253-4320(2003)01-0041-03 |
| 修稿时间： | 2002年10月12 |
Preparation and characterization of waterborne polyurethane envelop silica nanocomposites |
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| SUN Duo xian,JIA Hai dong,GUO Chang hai,ZHU Yan.Preparation and characterization of waterborne polyurethane envelop silica nanocomposites[J].Modern Chemical Industry,2003,23(1):41-43. |
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| Authors: | SUN Duo xian JIA Hai dong GUO Chang hai ZHU Yan |
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| Abstract: | Preparation of silica/waterborne polyurethane(WPU) inorganic organic nanocomposites was studied.The structure and properties of the composites were studied by FTIR spectroscopy,TEM and dynamic light scattering.Results show that the silica particles form nanometer microphase that disperses in the WPU colloid with a diameter about 60 nm and becomes core shell inorganic organic nanocomposites.WPU colloid restrict the aggregation of nanoparticles and cause the system to have good stability and transparency. |
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| Keywords: | nanocomposite silica/waterborne polyurethane core shell envelop |
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