TITLE:
The Synthesis of Solvent-Free TiO2 Nanofluids through Surface Modification
AUTHORS:
P. Y. Yu, Y. P. Zheng, L. Lan
KEYWORDS:
Solvent-Free, Nanofulids, TiO2 Nanoparticles, Liquid-Like Behave
JOURNAL NAME:
Soft Nanoscience Letters,
Vol.1 No.2,
April
8,
2011
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.