Nano zircon oxide slurry composition and preparation process thereof

Abstract

The invention relates to a nano-zirconia slurry composition and a preparation method thereof. The composition is composed of 10-75% of nano-zirconia with an average particle diameter of primary particles below 100nm, and 0.4-15% of a polymer dispersant. %, the remainder of the solvent composition; the preparation method is to add the polymer dispersant to the solvent, then add nano-zirconia, disperse with a high-speed disperser at 400-2200rpm for 10-70 minutes, and grind the obtained nano-zirconia slurry for 15 minutes- After 30 hours, the finished product of nano-zirconia slurry is made. The nano zirconia slurry of the present invention is a dispersion system with high solid content and low viscosity, has good monodispersity and high stability, and can be widely used in the fields of ceramics, coatings, inks, textiles, cosmetics, adhesives and the like.

Description

technical field [0001] The invention relates to nanotechnology, in particular to a nano zirconia slurry composition and a preparation method thereof. Background technique [0002] Nano zirconia is one of the important nano oxides, which has important applications in ceramic materials, coatings, cosmetics, antibacterial materials, photocatalytic materials and other fields. Japanese Patent Laid-Open No. 5-179535 reports adding 1 to 3% zirconia to polyester and spinning it with cellulose to form an anti-ultraviolet composite fabric. Colloidal molding of nano-zirconia can prepare new high-performance ceramics with superplasticity and ultrahigh hardness. However, due to the large specific surface area of ​​nano-zirconia, it is easy to agglomerate, and the impact of the secondary particle size on the properties of the slurry is very significant. Therefore, whether nano-zirconia can be effectively and stably dispersed is a key issue in the application of nano-zirconia. Polyacryl...

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Problems solved by technology

Polyacrylic acid and ammonium polyacrylate are commonly used dispersants for nano-zirconia powder [Sun Jing, Gao Lian, Guo Jingkun. Journal of Inorganic Materials, 1999, 14(3): 465; Jing Sun, Lian Gao and Jingkun Guo.Journal of the European Ceramic Society, 1999,19,1725; Tang Fengqiu, et al.Ceramics International, 2000,26,93], but this type of dispersant is generally limited to the dispersion system in which water is the dispersion medium, and the solid content of nano-zirconia When it is less than 50% and greater than 50%, the viscosity is high and it is almost impossible to use [Wang Jun, Sun Jing, Gao Lian. Journal of Inorganic Materials, 1999, 14 (2): 233; Fang Min, Zhang Zongtao, Hu Liming. Journal of Inorganic Materials, 1995, 10(4): 417]

No patent report on nano-zirconia slurry has been found in the current patent literature