TiO<sub>2</sub> nanoparticles with surface hydroxyl groups are treated by trimethoxysilane (CH<sub>3</sub>O)<sub>3</sub>Si(CH<sub>2</sub>)<sub>3</sub>O(CH<sub>2</sub>CH<sub>2</sub>O)<sub>6-9</sub>CH<sub>3</sub> and a inorganic core/organic shell hybridmaterials, which shows itself a yellow viscous fluid, is obtained. We call it solvent-free TiO<sub>2</sub> 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 TiO<sub>2</sub> nanoparticles in the nanofliuds is about 5.5wt%, the functionalized TiO<sub>2</sub> nanoparticles possess better dispersion, very low viscosity and an obvious liquid-like behavior at room temperature in absence of solvent.
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