The Synthesis of Solvent-Free TiO₂ Nanofluids through Surface Modification

P. Y. Yu, Y. P. Zheng, L. Lan

Northwestern Polytechnical University.

DOI: 10.4236/snl.2011.12008                

Abstract

TiO₂ nanoparticles with surface hydroxyl groups are treated by trimethoxysilane (CH₃O)₃Si(CH₂)₃O(CH₂CH₂O)_6-9CH₃ and a inorganic core/organic shell hybridmaterials, which shows itself a yellow viscous fluid, is obtained. We call it solvent-free TiO₂ nanofliuds. Transmission electron microscopy (TEM), Fourier transform infrared spectrum (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and rheometer are adopted to characterize the product. As a result, the content of TiO₂ nanoparticles in the nanofliuds is about 5.5wt%, the functionalized TiO₂ nanoparticles possess better dispersion, very low viscosity and an obvious liquid-like behavior at room temperature in absence of solvent.

Keywords

Solvent-Free, Nanofulids, TiO₂ Nanoparticles, Liquid-Like Behave

Conflicts of Interest

The authors declare no conflicts of interest.

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