| 海藻酸钠/TiO2纳米复合材料的制备与表征 |
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| 引用本文： | 田大听,冯 驸,冀小雄. 海藻酸钠/TiO2纳米复合材料的制备与表征[J]. 食品科学, 2009, 30(8): 33-35. DOI: 10.7506/spkx1002-6630-200908003 |
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| 作者姓名： | 田大听 冯 驸 冀小雄 |
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| 作者单位： | 湖北民族学院化学与环境工程学院 |
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| 基金项目： | 湖北省教育厅自然科学重点项目(D200629003);催化材料湖北省重点实验室开放基金项目(CHCL0506) |
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| 摘 要： | 用纳米TiO2为原料，以海藻酸钠(SA)为基体，采用共混法制备SA/TiO2纳米复合物。通过傅立叶红外光谱(FTIR)、热重分析(TG)、透射电镜(TEM)等手段对该体系进行了表征。结果表明：由于纳米TiO2粒子的引入，SA分子FTIR的某些特征峰的波数发生明显变化；纳米TiO2在复合物中的分散性较好；复合材料的热稳定性高于纯SA薄膜；此外，复合材料的力学性能有所提高。
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| 关 键 词： | 海藻酸钠 纳米TiO2 纳米复合材料 共混 |
| 收稿时间： | 2008-05-29 |
Preparation and Characterization of Sodium Alginate /TiO2 Nano-composites |
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| TIAN Da-ting,FENG Fu,JI Xiao-xiong. Preparation and Characterization of Sodium Alginate /TiO2 Nano-composites[J]. Food Science, 2009, 30(8): 33-35. DOI: 10.7506/spkx1002-6630-200908003 |
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| Authors: | TIAN Da-ting FENG Fu JI Xiao-xiong |
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| Affiliation: | (School of Chemical and Environmental Engineering, Hubei Institute for Nationalities, Enshi 445000, China) |
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| Abstract: | With titanium dioxide (TiO2) nano-particles as raw material and sodium alginate (SA) as matrix, SA/TiO2 nano-composites were prepared by blending method. Then the nano-composites were characterized using Fourier transform infrared spectra (FTIR), thermogravimetry (TG), and transmission electron microscopy (TEM). The results indicated that some wave numbers of FTIR characteristic peaks of SA are changed evidently because of the introduction of nano-TiO2, and the nano-TiO2 particles may well dispersed in the SA/TiO2 nano-composites. Moreover, the thermal stability and the mechanical performance of SA/TiO2 nano-composites are better than those of pure SA film. |
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| Keywords: | sodium alginate (SA) nano-TiO2 nano-composites blending |
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