| LIU Shao-bing,CHENG Shao-juan,ZHANG Ying,ZHAO Yan-sheng.Surface Modification of Nano-Si02 by Al( OH) 3[J],37(4):23-25 |
| Surface Modification of Nano-Si02 by Al( OH) 3 |
| Received:April 28, 2008 Revised:August 10, 2008 |
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| DOI： |
| KeyWord:Nano-Si02 Surface modification Surface coating Compatibility Heterogeneous nucleation |
| Author | Institution |
| LIU Shao-bing |
Material Engineering Department of Luoyang Institute of Technology, Luoyang , China |
| CHENG Shao-juan |
Material Engineering Department of Luoyang Institute of Technology, Luoyang , China |
| ZHANG Ying |
Ordnance Engineering College, Shijiazhuang , China |
| ZHAO Yan-sheng |
Taiyuan University of Technology, Taiyuan , China |
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| Abstract: |
| Nano-Si02 is an inorganic materials with excellent properties and widely uses. In order to reduce the hydrophilicity, increase the hydrophobicity and improve the compatibility between organic matrix and nano-Si02 to make full use of its nano advantage, its surface need to be modified. Nano-Si02 surface was modified by Al( OH) 3 from heterogeneous nucleation process to improve the surface structures and properties. The surface structure and the zeta potential of nano-Si02 were characterized by IR, XPS, XRD and Malvern Instruments Zetasize Systems. The results indicate that nano-Si02 is successfully coated by amorphous Al( OH) 3 . After surface coating nano-Si02 is still amorphous and the isoelectric point of Si02 is changed from pH 2. 3 t0 7. 1. |
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