关键词: 粘度;分散性;改性;温度

Abstract: The low viscosity and high dispersity of aqueous photocurable ceramic pastes is a key factor in determining the quality of curing. The viscosity of the premix of slurry and the 10% solid content at different temperatures were tested,modification of yttria stabilized zirconia (3Y-ZrO2 )nano powder by silane coupling agent KH570 . The results show that the monomer with the matrix resin has little effect on the viscosity of the premix;the viscosity of the slurry decreases with the increase of the temperature. The surface of the modified nano powder is grafted with a layer of homogeneous organic matter,dispersity in the premix. Finally,the solidified layer is observed by scanning electron microscopy and found that its tissue is uniform and no agglomerated particles appeared.

Key words: viscosity;dispersity;modification;temperature