Study on the properties of nano-TiO_2 slurry with dispersion

Nano-TiO_2 concentrated slurries with low viscosity were prepared by special processes that could be well dispersed and reserved stably.The TiO_2 powders in the concentrated slurries mainly existed in the state of single particles according to the TEM observation.XRD patterns indicated that the TiO_2 still kept original crystal type and didn't bring impurities into the nano-TiO_2 concentrate slurries.FTIR proved that the dispersant tightly adsorbed at the surface of nano-TiO_2 by chemisorption,and induced the nano-particle to keep stable in the aqueous dispersion due to the electric repulsion force and steric effect.