| 聚酰亚胺/硅石-钛酸钡纳米复合材料的制备与表征 |
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| 引用本文： | 刘秋萍,高玲香,阳林.聚酰亚胺/硅石-钛酸钡纳米复合材料的制备与表征[J].陕西师范大学学报,2007,35(3):65-68. |
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| 作者姓名： | 刘秋萍 高玲香 阳林 |
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| 作者单位： | 陕西师范大学化学与材料科学学院 西安710062 |
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| 摘 要： | 通过分散聚合法成功地制备了聚酰亚胺/硅石-钛酸钡纳米复合粒子,采用FT-IR、XRD、TEM分析手段研究了复合粒子的结构、形貌及其大小.结果表明,硅石包覆钛酸钡粒子的表面有一层浅色的聚合物,该聚合物包覆层的厚度约为10 nm,并且粒子在外观上基本呈球形或近似球形;同时在包覆过程中BaTiO3纳米粒子的晶体结构稳定,有机相与无机相之间是通过化学键键连.
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| 关 键 词： | 聚酰亚胺 钛酸钡 包覆粒子 |
| 文章编号： | 1672-4291（2007）03-0065-04 |
| 修稿时间： | 2006-06-15 |
Preparation and characterization of polyimide/silica-barium titanate nanocomposites |
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| LIU Qiu-ping,GAO Ling-xiang,YANG Lin.Preparation and characterization of polyimide/silica-barium titanate nanocomposites[J].Journal of Shaanxi Normal University: Nat Sci Ed,2007,35(3):65-68. |
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| Authors: | LIU Qiu-ping GAO Ling-xiang YANG Lin |
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| Abstract: | The polyimide/silica-barium titanate nanocomposites have been successfully synthesized by a dispersion polymerization method.The morphology,structure and size of the polyimide / silica-barium titanate nanocomposites were investigated by using FT-IR,XRD and TEM.The results indicated that silica-bariumtitanate nanocomposite surface is covered by a thin-layer polymer,the layer thickness is about 10 nm,and the shape of nanocomposite partials is nearly spherical.The crystal structure of BaTiO3 is stable during preparation of narocomposite particles and the chemical bond forms between the inorganic phases and the polymer matrix. |
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| Keywords: | polyimide barium titanate coating particles |
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