| 纳米二氧化钛表面改性及其在聚氨酯涂层中的分散性质 |
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| 引用本文： | 郑高,杜楠,梁红波.纳米二氧化钛表面改性及其在聚氨酯涂层中的分散性质[J].表面技术,2007,36(4):42-44,48. |
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| 作者姓名： | 郑高 杜楠 梁红波 |
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| 作者单位： | 南昌航空工业学院,江西,南昌,330063;南昌航空工业学院,江西,南昌,330063;南昌航空工业学院,江西,南昌,330063 |
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| 摘 要： | 采用长链烷烃和微胶囊方法对纳米TiO2(锐钛型,粒径20nm) 进行表面改性,利用傅里叶红外光谱(FTIR)和热重分析(TGA)分别研究了改性纳米粉体的表面化学结构及接枝率,结果表明:改性纳米TiO2粉体表面成功接枝了高分子聚合物,接枝率分别为5%和12%.将改性纳米TiO2粉体(质量分数为1%～3%)与双组分聚氨酯涂料进行复合,制备了纳米TiO2/聚氨酯复合涂料,并利用扫描电子显微镜(SEM)对纳米复合涂层进行了微观检测,结果表明:微胶囊改性的纳米TiO2在涂层中的分散性最好.
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| 关 键 词： | 纳米TiO2 表面改性 纳米复合涂层 分散性 聚氨酯涂层 |
| 文章编号： | 1001-3660（2007）04-0042-03 |
| 收稿时间： | 2007/3/29 0:00:00 |
| 修稿时间： | 2007-03-29 |
The Surface Modification of Nano-Ti02 and Its Distribution in Polyurethane Coatings |
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| ZHENG Gao,DU Nan and LIANG Hong-bo.The Surface Modification of Nano-Ti02 and Its Distribution in Polyurethane Coatings[J].Surface Technology,2007,36(4):42-44,48. |
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| Authors: | ZHENG Gao DU Nan and LIANG Hong-bo |
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| Affiliation: | Nanehang Institute of Aeronautical Technology, Nanehang 330063, China |
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| Abstract: | The surface of nano-Ti02 ( anatase , particle diameter 20nm) was modified by long-chain alkane or microcapsule, which was characterized by fourier tmsform infrared ray ( FTIR) and thermal analysis ( TGA) . The results show that the modified nano-Ti02 particles have been grafted by macromolecular polymers, with the grafting degrees of 50-/o and 120-/o , respectively. The modified nano-Ti02 ( 10-/o - 30-/o ) was blended with polyurethane resins to obtain nanoTi02/ polyurethane composite coating, which were further studied by scanning electron microscopy( SEM) . The results show that nano-Ti02 which was modified by microcapsule has the best dispersibility. |
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| Keywords: | Nano-TiO2 Surface modification Nano-composite coatings Distribution Polyurethane coating |
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