| 纳米SiO2的溶胶-凝胶法制备及其最佳工艺条件 |
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| 引用本文： | 王杰,宋丽贤,卢忠远,芦艾,宋英泽. 纳米SiO2的溶胶-凝胶法制备及其最佳工艺条件[J]. 四川建材学院学报, 2011, 0(2): 27-31 |
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| 作者姓名： | 王杰 宋丽贤 卢忠远 芦艾 宋英泽 |
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| 作者单位： | [1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]中国工程物理研究院化工材料研究所,四川绵阳621900 |
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| 基金项目： | 绵阳市科技局科技攻关项目（08K006-3）,西南科技大学先进建筑材料重点实验室培育项目（08zxxp08）. |
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| 摘 要： | 选用正硅酸乙酯（TEOS）有机物作为硅源，以醋酸-醋酸铵缓冲液和氨水为催化剂，采用两步催化法制备SiO2粉体。研究了制备SiO2的几个影响因素：水醇盐的摩尔比，催化剂的浓度及用量，反应温度和陈化温度。确定了制备SiO2的最佳工艺条件，缩短了工艺周期，并利用X-射线衍射（XRD）分析、扫描电镜（SEM）照片、傅立叶变温红外（FT-IR）图谱、综合热分析对SiO2的结构和性能进行了表征。
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| 关 键 词： | 溶胶-凝胶法 SiO2 工艺条件 |
Research on the Preparation Parameters of Silica by Sol-Gel Process |
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| WANG Jie,SONG Li-xian,LU Zhong-yuan,LU Ai,SONG Ying-ze. Research on the Preparation Parameters of Silica by Sol-Gel Process[J]. , 2011, 0(2): 27-31 |
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| Authors: | WANG Jie SONG Li-xian LU Zhong-yuan LU Ai SONG Ying-ze |
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| Affiliation: | 1. State Key Laboratory Cuhivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China ; 2. China Insthute of Chemical Materials of CAEP, Mianyang 621900, Sichuan, China) |
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| Abstract: | To prepare silica through two-step sol-gel process, with TEOS as the silicon source, and with CH3COOH- CH3COONH4 and NH3 · H2O as the catalyst. It investigated the impact of some factors in the preparation, such as the molar ratio of the water to alkoxide, the catalyst content, the reaction tempreture, and the aging tempreture. Finally, the optimum conditions to prepare silica were determined. Meanwhile, the preparation period was shortened. In the experiment, the X-ray diffraction （XRD）, the scanning electron microscopy （SEM）, the infrared spectroscopy （FT-IR）, and the thermal analysis （TGDSC） were used to characterize the siliea＇s structure and other properties. |
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| Keywords: | Sol-gel SiO2 Process |
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