Preparation method of nano zirconium oxide hollow spheres

A technology of nano-zirconia and hollow spheres, which is applied in the direction of zirconia and nanotechnology, can solve the problems of inability to prepare single-phase zirconia powder, unfavorable large-scale industrialization, and high cost

Active Publication Date: 2020-11-20
SUZHOU GINET NEW MATERIAL TECH CO LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For details, please refer to the description in paragraphs 6-10 of the description "a preparation method of monodisperse zirconia microspheres, the specific steps of which are...", the applicant has conducted in-depth research on this scheme, and tried to use this method to manufacture micro-nano The sphericity of zirconia is good, but the disadvantage is that this method cannot prepare zirconia powder with a single crystal phase. At the same time, the preparation process is complicated and the cost is high, which is not conducive to large-scale industrialization

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 nano zirconium oxide hollow spheres
  • Preparation method of nano zirconium oxide hollow spheres
  • Preparation method of nano zirconium oxide hollow spheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment one: do not add complexing agent

[0051] Step 1.1, preparation of solution A, mixing and stirring water-soluble zirconium oxychloride, water-soluble yttrium nitrate, and deionized water in a molar ratio of 1:0.05:60 to obtain a homogeneous solution A;

[0052] Step 1.2, the preparation of solution B, mixing and stirring potassium hydroxide and deionized water according to the molar ratio of 1:55, to obtain a homogeneous solution B;

[0053] Step 1.3, preparation of precursor suspension, drop solution A into solution B at a rate of 10 ml / min, and keep stirring for 2 hours to obtain precursor suspension;

[0054] In step 1.4, a composite mineralizer composed of triethanolamine and potassium acetate with a molar ratio of 1:1 is added to the precursor suspension obtained in step 3, and the amount of the mineralizer added is the same as that of the soluble salt (ie soluble zirconium salt and water-soluble salt). The total amount of active yttrium salt) the mol r...

Embodiment 2

[0058] Embodiment two: add complexing agent

[0059] Step 2.1, preparation of solution A, mixing and stirring water-soluble zirconium oxychloride, water-soluble yttrium chloride, and deionized water in a molar ratio of 1:0.05:60 to obtain a homogeneous solution A;

[0060] Step 2.2, preparation of solution B, mixing and stirring potassium hydroxide and deionized water according to a molar ratio of 1:40, to obtain a homogeneous solution B;

[0061] Step 2.3, the preparation of solution C, the complexing agent that molar ratio is 3:7 tartaric acid, citric acid composition is added in B solution, and wherein complexing agent addition and potassium hydroxide molar ratio are 1:8;

[0062] Step 2.4, preparation of precursor suspension, drop solution A into solution C at a rate of 9 ml / min, and keep stirring for 2 hours to obtain a precursor suspension;

[0063] In step 2.5, a composite mineralizer composed of triethanolamine and potassium acetate with a molar ratio of 1:1 is added ...

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
Sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of nano zirconium oxide hollow spheres. A reverse precipitation technology is adopted; the preparation method comprises the following steps: firstly, preparing a homogeneous solution from a water-soluble zirconium salt solution, a water-soluble yttrium salt solution and deionized water; slowly titrating the homogeneous solution and adding the homogeneous solution into an alkaline solvent containing a complexing agent to prepare a precursor turbid liquid; a mineralizing agent is added for hydrothermal reaction; according to the method, the nano zirconium oxide powder material and the nano zirconium oxide hollow spheres are synthesized at a time, the production and manufacturing period is greatly shortened, the production and manufacturing cost issaved, the obtained nano zirconium oxide hollow spheres are micron-sized and uniform in granularity, and in addition, the nano zirconium oxide particles forming the hollow spheres have the characteristics of high purity, high tetragonal phase, high dispersity and the like.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic powder materials, in particular to a method for preparing nano zirconia hollow spheres by hydrothermal reaction. Background technique [0002] Due to its extremely small particle size (1-100nm), nanomaterials have surface effects, small size effects, quantum tunneling effects, and quantum size effects. The super large specific surface area and high surface energy make it significantly improve the optical, electrical, magnetic and mechanical properties of the material. In recent years, with the improvement of nano-powder preparation technology, nano-halogen oxide (ZrO 2 ) have been widely used in many fields. Nano-ZrO 2 It has excellent characteristics such as high melting point, high hardness phase change toughening, oxidation resistance, acid and alkali resistance, suitable for catalysis and used as a catalyst carrier, and is an ideal functional structural material. [0003] Th...

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
CPCB82Y40/00C01G25/02C01P2002/72C01P2004/03C01P2004/34C01P2004/61C01P2004/64C01P2006/80
Inventor 杜怿鑫沈晓燕胡林政
Owner SUZHOU GINET NEW MATERIAL TECH CO LTD
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