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Nanometer zirconium dioxide particle capable of dispersing in organic medium and its production method

A technology of nano-zirconia and organic compounds, which is applied in the field of nano-materials, can solve the problems that nano-zirconia cannot be dispersed or the dispersion effect is not good, and restricts performance and application, so as to speed up the densification process, eliminate defects, and enhance The effect of toughness

Inactive Publication Date: 2009-04-15
HENAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing nano zirconium dioxide cannot be dispersed or the dispersion effect is not good in non-polar solvents, which limits its performance and application in the above fields

Method used

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  • Nanometer zirconium dioxide particle capable of dispersing in organic medium and its production method
  • Nanometer zirconium dioxide particle capable of dispersing in organic medium and its production method
  • Nanometer zirconium dioxide particle capable of dispersing in organic medium and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, get 19.32gZrOCl 2 .8H 2 O and 0.68gY (NO 3 ) 3 .6H 2 O was dissolved in 60ml of pure water to make solution 1; 20ml of ammonia water and 50ml of pure water were taken to make solution 2; solution 1 and 2 were dripped into 100ml of pure sodium dodecylbenzenesulfonate containing a small amount of sodium dodecylbenzenesulfonate while stirring at a high speed. In water, the drip rate is 1 drop / second. After the dropwise addition is completed, react at a constant temperature of 20°C for 2 hours; filter the obtained precipitate and wash until free of Cl - exists, the filter cake is dispersed in 200ml pure water, transferred to a 250ml three-necked flask, and 5mlA-151 (C 2 h 3 Si(OEt) 2 ), and add a small amount of sodium dodecylbenzenesulfonate. Use ammonia water to adjust the pH of the solution to 9; react at a constant temperature of 50°C for 2 hours, raise the temperature to 60°C for 2 hours, and then react at 70°C for 2 hours. Filter, dry at 110° C....

Embodiment 2

[0019] Embodiment 2, get 4.83gZrOCl 2 .8H 2 O and 0.57gY(NO 3 ) 3 .6H 2 O was dissolved in 20ml of pure water to make solution 1; 13.3ml of ammonia water and 20ml of pure water were taken to make solution 2; solutions 1 and 2 were dripped into 50ml of sodium dodecylbenzenesulfonate containing a small amount of sodium dodecylbenzenesulfonate while stirring at a high speed. In pure water, the dropping speed is 1 drop / second. After the dropwise addition is completed, react at a constant temperature of 20°C for 2 hours; filter the obtained precipitate and wash until free of Cl - exists, the filter cake is dispersed in 100ml pure water, transferred to a 250ml three-necked flask, and 2ml KH-550 (NH 2 (CH 2 ) 3 Si(OEt) 3 ), adjust the pH of the solution to 9 with ammonia water; react at a constant temperature of 50°C for 2 hours, raise the temperature to 60°C for 2 hours, and then react at 70°C for 2 hours. Filter, dry at 110° C. for 2 hours and pulverize to obtain a white s...

Embodiment 3

[0020] Embodiment 3, get 10.18gZr (NO 3 ) 4 and 0.34gY (NO 3 ) 3 .6H 2 O was dissolved in 60ml of pure water to make solution 1; 10ml of ammonia water and 55ml of pure water were taken to make solution 2; solution 1 and 2 were dripped into 100ml of pure sodium dodecylbenzenesulfonate containing a small amount of sodium dodecylbenzenesulfonate while stirring at a high speed. In water, the drip rate is 1 drop / second. After the dropwise addition is completed, react at a constant temperature of 20°C for 2 hours; filter the obtained precipitate and wash until free of Cl - exists, the filter cake is dispersed in 200ml of pure water, transferred to a 250ml three-necked flask, and 3ml of KH-560 (CH 2 OCHCH 2 O(CH 2 ) 3 Si(OMe) 3 ) and adjust the pH of the solution to 9 with sodium hydroxide; react at a constant temperature of 50°C for 2 hours, then heat up to 60°C for 4 hours. Filter, dry at 110° C. for 2 hours and pulverize to obtain a white solid powder. Finally, it is fi...

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Abstract

The invention provides the nanometer zirconium dioxide particle, comprising 3-50% organic compound with silicon. The method comprises the following steps: putting the zircon salt in alkalinity condition, settling, getting nanometer zirconium dioxide, modifying nanometer zirconium dioxide with siliceous organic compound, adding surface active agent, and getting the product. The product has good oil wettability, and the particle size is 2-50nm. The product can be used in ceramic mold casting, filler, addition agent, catalyst and catalyst carrier.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, in particular to a nano-sized zirconia particle that can be dispersed in an organic medium and a preparation method thereof Background technique [0002] Zirconium dioxide is an oxide with good thermal and chemical stability. It has excellent high-temperature electrical conductivity, high high-temperature strength, toughness and good wear resistance. It can be used to produce structural ceramics, electronic ceramics, bioceramics and other functional ceramics, and has a wide range of uses in different fields such as ceramic pigments, engineering ceramics, gem industry, piezoelectric elements, ion exchangers and solid electrolytes. With its unique microscopic properties, nano-zirconia powder has sintering activity that ordinary powder does not have, and nano-zirconia ceramics have superplasticity and specific surface behavior. However, the existing nano zirconium dioxide cannot be dispersed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/12C01B25/02
Inventor 李小红刘丰张治军
Owner HENAN UNIVERSITY
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