| 超细SiO2的制备及水合特性实验分析 |
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| 引用本文： | 吕绪良,韩卫华,李玉科,王占峰,邵锦萍.超细SiO2的制备及水合特性实验分析[J].解放军理工大学学报,2006,7(2):145-147. |
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| 作者姓名： | 吕绪良 韩卫华 李玉科 王占峰 邵锦萍 |
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| 作者单位： | 吕绪良（解放军理工大学,工程兵工程学院,江苏,南京,210007）;韩卫华（解放军理工大学,工程兵工程学院,江苏,南京,210007）;李玉科（解放军理工大学,工程兵工程学院,江苏,南京,210007）;王占峰（解放军理工大学,工程兵工程学院,江苏,南京,210007）;邵锦萍（解放军理工大学,工程兵工程学院,江苏,南京,210007） |
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| 摘 要： | 为了增加SiO2的功能以拓展它的应用范围,采用醇盐水解法制备SiO2粉末,并对其水合性能进行讨论.制备过程发现,氨水及正硅酸乙酯浓度都对SiO2的粒径及水合性能有所影响.采用酸洗和微波照射等方法对SiO2表面进行活化,使之产生更多的羟基.用红外光谱和水合等方法研究了SiO2的表面羟基含量,结果表明,酸洗和微波照射能够使SiO2表面活化,增强SiO2表面的水合性能.
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| 关 键 词： | 醇盐水解法 超细SiO2 表面活化 水合 |
| 文章编号： | 1009-3443（2006）02-0145-03 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005年10月25 |
Preparation and hydration of tiny silica |
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| LV Xu-liang,HAN Wei-hu,LI Yu-ke,WANG Zhan-feng and SHAO Jin-ping.Preparation and hydration of tiny silica[J].Journal of PLA University of Science and Technology(Natural Science Edition),2006,7(2):145-147. |
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| Authors: | LV Xu-liang HAN Wei-hu LI Yu-ke WANG Zhan-feng and SHAO Jin-ping |
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| Institution: | Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China |
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| Abstract: | In order to increase the function of the silica to extend its application, the hydration of the silica powder obtained by the controlled hydrolysis of metal alkoxide was studied. The results indicated that the size and hydration of the silica were affected by the concentration of the ammonia and the tetraethoxysilane. More hydroxyls would be in the surface of silica after acid activation and microwave irradiation. The number of hydroxyls was determined by infra-red spectrogram, hydration, etc. As a result, acid activation and microwave irradiation could make the surface of the silica active and increase its hydration. |
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| Keywords: | controlled hydrolysis of metal alkoxide tiny silica surface activation hydration |
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