Preparation method of monodisperse spherical nano zirconium dioxide powder material

A technology of nano-zirconia and powder materials, applied in the direction of zirconia, nanotechnology, etc., can solve the problems of irregular shape, wide particle size distribution, poor dispersion of nano-zirconia, and achieve concentrated particle size distribution, single Excellent dispersibility effect and simple and easy preparation process

Inactive Publication Date: 2018-05-29
YANGTZE UNIVERSITY
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a preparation method of monodisperse spherical nano-

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of monodisperse spherical nano zirconium dioxide powder material
  • Preparation method of monodisperse spherical nano zirconium dioxide powder material
  • Preparation method of monodisperse spherical nano zirconium dioxide powder material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] This embodiment provides a method for preparing a monodisperse spherical nano-zirconia powder material, comprising the following steps:

[0014] (1) The organic zirconium source, electrolyte solution and alcohol solution are prepared according to the volume ratio of 1-10:0.5-1.4:50-100, and the alcohol solution is divided into 2 parts; in an inert gas environment, the inert gas is preferably nitrogen, Add the organic zirconium source and the electrolyte solution to 2 parts of the alcohol solution respectively, stir and mix evenly when the temperature is 20-80°C, and the preferred mixing temperature is 50°C to obtain the A mixed solution (the mixed solution of the organic zirconium source-alcohol solution) and B mixed solution (mixed solution of electrolyte solution-alcoholic solution);

[0015] Organic zirconium sources include zirconium tetraethoxide, zirconium n-propoxide, zirconium isopropoxide, zirconium tetraisopropoxide, zirconium n-butoxide, zirconium tert-butoxi...

Embodiment 1

[0023] This embodiment provides a method for preparing a monodisperse spherical nano-zirconia powder material, comprising the following steps:

[0024] (1) KCl is made into the KCl solution of 0.3mol / L, according to the volume ratio of n-butoxide zirconium (IV), KCl solution and n-butanol solution is 2: 1: 80 to prepare materials, and alcoholic solution is divided into 2 parts; Under the protection of nitrogen atmosphere, add zirconium n-butoxide and KCl solution to 2 parts of n-butanol solution respectively, and keep stirring at 50°C for 30 minutes to obtain uniformly mixed A mixed solution and B mixed solution;

[0025] (2) Drop the mixed solution B in step (1) into the mixed solution A at a speed of 10d / s, and continue to stir the mixed solution for 1 hour, then raise the temperature to 70°C to start aging, and continue to age for 8 hours. After the reaction is completed, The obtained product is centrifuged, washed, and vacuum-dried to obtain the zirconia precursor powder; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a monodisperse spherical nano zirconium dioxide powder material. The preparation method comprises the following steps that (1), an organic zirconium source, a electrolyte solution and an alcoholic solution are prepared according to the volume ratio of (1-10):(0.5-1.4):(50-100), and the alcoholic solution is divided into two parts; under an inert gasenvironment, the organic zirconium source and the electrolyte solution are added into the two parts of alcoholic solutions respectively, and A mixed liquid and B mixed liquid are obtained after mixingis even; (2), the B mixed liquid is dropped in the A mixed liquid at the speed of 6-14 d/s, after mixing is even, aging is conducted for 7-9 hours at the temperature of 62-78 DEG C, after a reactionis completed, the product is subjected to centrifugation, washing and vacuum drying, and zirconium dioxide precursor powder is obtained; and (3), zirconium dioxide precursor powder is roasted at the temperature of 450-750 DEG C, and then cooled to be room temperature, and the nano zirconium dioxide powder material is obtained. The prepared zirconium dioxide powder material is in spherical shapes,the grain size distribution is concentrated, and the dispersity is good.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic oxide materials, and in particular relates to a preparation method of a monodisperse spherical nanometer zirconia powder material. Background technique [0002] Zirconia (ZrO 2 ) has unique physical and chemical properties, such as good thermal and chemical stability, high strength and fracture toughness, low thermal conductivity, good wear resistance and corrosion resistance, etc., so in addition to being used in traditional refractory materials It is also widely used in the fields of functional ceramics such as piezoelectric components and ceramic capacitors, as well as in the fields of advanced structural ceramics, functional coatings, oxygen sensors and catalyst carriers, and is also widely used in metallurgy, chemical industry, cosmetics, aerospace and medical departments. increasing and has broad application prospects. [0003] At present, the preparation meth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01G25/02B82Y40/00
CPCC01G25/02B82Y40/00C01P2002/72C01P2004/03C01P2004/32C01P2004/52C01P2004/62C01P2004/64
Inventor 肖围王脂胭缪畅刘杨牟豪轶方锐熊雄
Owner YANGTZE UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap