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Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 2: 315 - 321

DOI: https://doi.org/10.3724/SP.J.1077.2006.00315

Research Paper

Surface Modification of Nanosized TiO2 with Silane Coupling Reagent

  • YAO Chao ,
  • GAO Guo-Sheng ,
  • LIN Xi-Ping ,
  • YANG Xu-Jie ,
  • LU Lu-De ,
  • WANG Xin
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  • 1. School of Chemical Engineering,Nanjing University of Science \& Technology,
    Nanjing 210094, China;
    2. Jiangsu Polytechnic University, Changzhou 213016, China

Received date: 2005-03-28

  Revised date: 2005-06-07

  Online published: 2006-03-20

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Abstract

The surface modification with silane coupling reagent KH-570 of nanosized TiO2 in the rutile phase pre-coated with silica, was studied. The prepared samples were characterized by FT-IR, XPS,TEM, TG and DTA techniques. According to the spectra of FT-IR and XPS, it can be inferred that the KH-570 is bound on the surface of nanosized TiO2 particles and an organic coating layer is formed. The mass fraction of KH-570 coated on the surface of nanosized TiO2 measured is about 7.42%～8.59%.The wetting experiments show that the hydrophobicity of nanosized TiO2 modified with KH-570 is improved. Mechanical tests reveal that the strength and toughness of the nanosized TiO2 modified with KH-570 are improved simultaneously.

Key words： TiO2; KH-570; surface modification

Cite this article

YAO Chao , GAO Guo-Sheng , LIN Xi-Ping , YANG Xu-Jie , LU Lu-De , WANG Xin . Surface Modification of Nanosized TiO2 with Silane Coupling Reagent[J]. Journal of Inorganic Materials, 2006 , 21(2) : 315 -321 . DOI: 10.3724/SP.J.1077.2006.00315

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