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Yb-doped nano aqueous ATO heat-proof slurry and preparation thereof

A heat-insulating slurry and ATO technology, which is applied in chemical instruments and methods, fibrous fillers, and other chemical processes, can solve problems such as limited use, easy agglomeration, and large surface energy of nano-ATO powder to increase production , good stability

Inactive Publication Date: 2008-06-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of nano-ATO powder is mature in China, but the surface energy of nano-ATO powder is very large, and it is easy to agglomerate, which limits its use.

Method used

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  • Yb-doped nano aqueous ATO heat-proof slurry and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 16g of nano-ATO powder and Yb 2 o 3 Add 0.5g of powder into 183g of deionized water, then pre-disperse with ESJ-300 high-speed mixer at a speed of 500rpm, add 0.99g of HX-5320 (polycarboxylate sodium salt solution) during the stirring process, and disperse for half an hour Add it into a sand mill for further grinding for 16 hours. The filling volume of the zirconium balls in the sand mill is 80%, and the liquid is taken out to be the ytterbium-doped nanometer water-based ATO slurry, and the average particle size of the slurry is 91nm. The prepared slurry has good stability and can be stored at room temperature for 6 months without visible precipitation.

Embodiment 2

[0028] Weigh 30g of nano-ATO powder and Yb 2 o 3 Add 1.5g of powder into 168g of deionized water, then pre-disperse with ESJ-300 high-speed mixer at a speed of 500rpm, add 1.26g of SN-5040 (polycarboxylate sodium salt type) during the stirring process, and pre-disperse for half an hour Add it to a ball mill for further grinding for 10 hours, the filling volume of the zirconium balls is 70%, and the liquid is taken out to be the ytterbium-doped nanometer water-based ATO slurry, and the average particle size of the slurry is 97nm. The prepared slurry has good stability and can be stored at room temperature for 6 months without visible precipitation.

Embodiment 3

[0030] Weigh 40g of nano-ATO powder and Yb 2 o 3 Add 1.2g of powder into 156g of deionized water, and then pre-disperse with KQ3200E ultrasonic generator, ultrasonic frequency 40KHz, power 150W, add 3.3g of polyacrylamide during the pre-dispersion process, pre-disperse half an hour later, add it to the sand mill After further grinding for 14 hours, the filling volume of the zirconium balls in the sand mill was 85%, and the liquid was taken out to obtain the ytterbium-doped nanometer water-based ATO slurry with an average particle size of 85nm. The prepared slurry has good stability and can be stored at room temperature for 6 months without visible precipitation.

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Abstract

The invention discloses a ytterbium-doped nano-waterborne ATO heat-insulated slurry and a preparation method thereof; the method is that 5 to 40 percent by weight of the ATO heat-insulated slurry of nano-ATO powder, 55 to 95 percent by weight of the ATO heat-insulated slurry of deionized water, 3 to 5 percent by weight of the ATO powder of Yb2O3 powder, and 2 to 8 percent by weight of the ATO powder of dispersant are pre-dispersed by stirring or ultrasonic shattering, and the pre-dispersant is ground and dispersed to obtain the ytterbium-doped nano-waterborne ATO slurry. The prepared slurry has 5 to 40 percent by weight of solid content, and the average particle size of the powder in the slurry is 70 to 100nm. The method adopts wet milling technology, and prepares nano-waterborne ATO slurry simply and efficiently, which is suitable for continuous operation and mass production. The slurry has adjustable solid content and high stability with at least 6 month preservation period at room temperature; the slurry can be widely used as heat insulation agent and antistatic agent of glass window, etc.

Description

technical field [0001] The invention relates to a nanometer powder dispersion method, in particular to a ytterbium-doped nanometer water-based antimony tin oxide (ATO) thermal insulation slurry and a preparation method thereof. Background technique [0002] With the rapid development of science and technology and social production, energy and the environment have become two major issues of increasing concern to the whole society, thus putting forward higher requirements for energy saving and environmental protection. Building thermal insulation (thermal insulation) is an important aspect of saving energy and improving the living and using functions of buildings. Building energy consumption generally accounts for 30% to 40% of the total energy consumption of human beings, and most of them are heating and air-conditioning energy consumption, so building energy conservation is of great significance. According to research statistics, in terms of building energy consumption, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/10C09K3/18
Inventor 孟庆林李宁
Owner SOUTH CHINA UNIV OF TECH
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