Preparation method of antimony tin oxide water/oil amphiprotic slurry

A technology of tin and antimony oxide water oil and nanometer tin and antimony oxide is applied in the directions of fibrous filler, dyed polymer organic compound treatment, coating, etc., which can solve the problem of increasing the preparation process time, increasing the production cost, and limiting the use range of the dispersion slurry. and other problems, to achieve the effect of overcoming the agglomeration of ATO nanoparticles, low cost, and easy industrial production.

Active Publication Date: 2014-03-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This obviously limits the scope of use of the dispersion slurry
Moreover, the surface polarity of ATO nano-powder is relatively large. If it is to be dispersed in a non-polar oily solvent, the surface of ATO nano-powder must be modified, which not only increases the time of the entire preparation process, but also improves the production efficiency. cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a kind of preparation method of nano antimony tin oxide (ATO) water-oil amphoteric slurry, carries out following steps successively:

[0025] 1) Take 10g of nano-tin antimony oxide powder and 100ml of ethylene glycol methyl ether to make a suspension of nano-tin antimony oxide powder; add an appropriate amount of sodium hydroxide to adjust the pH of the system to 9.2, and put Disperse at high speed for 8 hours at a speed of 4000r / min; get a dispersion;

[0026] 2) Add the wetting and dispersing agent BYK-180 accounting for 1% of the total weight of the dispersion to the dispersion obtained in step 1); then disperse at a high speed for 2 hours under a high-speed shear disperser at a speed of 2500r / min; Nano antimony tin oxide amphoteric slurry.

Embodiment 2

[0027] Embodiment 2, a kind of preparation method of nano antimony tin oxide (ATO) water-oil amphoteric slurry, following steps successively:

[0028] 1) Take 8g of nano-tin antimony oxide powder and 100ml of ethylene glycol ether to make a suspension of nano-tin antimony oxide powder; add an appropriate amount of potassium hydroxide to adjust the pH of the system to 9.5, and disperse it under a high-speed shear disperser 8 hours, rotating speed is 4000r / min; Obtain dispersion liquid;

[0029] 2) Add the wetting and dispersing agent BYK-187 accounting for 2% of the total weight of the dispersion to the dispersion obtained in step 1); then disperse at a high speed for 2 hours under a high-speed shear disperser at a speed of 3000r / min; Nano antimony tin oxide amphoteric slurry.

Embodiment 3

[0030] Embodiment 3, a kind of preparation method of nano antimony tin oxide (ATO) water-oil amphoteric slurry, following steps successively:

[0031] 1) Take 6g of nano-tin antimony oxide powder and 100ml of ethylene glycol ether to make a suspension of nano-tin antimony oxide powder; add appropriate amount of potassium hydroxide to adjust the pH of the system to 10.2, and disperse in a high-speed shear disperser 6 hours, rotating speed is 4500r / min; get dispersion liquid;

[0032] 2) Add the wetting and dispersing agent BYK-108 accounting for 1.5% of the total weight of the dispersion to the dispersion obtained in step 1); then disperse at a high speed for 2 hours in a high-speed shear disperser at a speed of 2500r / min; Nano antimony tin oxide amphoteric slurry.

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Abstract

The invention discloses a preparation method of an antimony tin oxide water/oil amphiprotic slurry, which comprises the following steps: 1) preparing a nano antimony tin oxide powder suspension from nano antimony tin oxide powder and an amphiprotic solvent, adding a surface charge regulator until the pH value is 9-11, and carrying out high-speed dispersion for 6-8 hours with a high-speed shearing dispersion machine to obtain a dispersion solution, wherein the amphiprotic solvent is ethylene glycol monomethyl ether or glycol ether; and 2) adding a surface dispersing agent into the dispersion solution obtained in the step 1), and carrying out high-speed dispersion for 2-4 hours with a high-speed shearing dispersion machine to obtain the nano antimony tin oxide water/oil amphiprotic slurry. The nano antimony tin oxide (ATO) water/oil amphiprotic slurry prepared by the method can be compounded with both a hydrophilic resin and a lipophilic resin, thereby widening the application range of the ATO slurry.

Description

technical field [0001] The invention relates to a preparation method of nano-tin antimony oxide water-oil amphoteric slurry. Background technique [0002] Nano antimony tin oxide (ATO) powder, also known as nano antimony doped tin dioxide powder. It has ideal selectivity to the solar spectrum, that is, it has high transmittance in the visible light region, but has good shielding performance on infrared light, so it has become a recognized nano-functional particle in the field of transparent heat-shielding coatings. ATO powder is made into nano-transparent heat-insulating coating, which is coated on the glass surface of buildings or automobiles to form a transparent heat-insulating film, which can have the effect of heat preservation and heat insulation. At the same time, ATO powder has good conductivity and can be used to prepare transparent conductive films. However, due to its high specific surface area and surface polarity, ATO nanoparticles are prone to particle agglom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09C1/00C09C3/10
Inventor 郭兴忠张超杨辉蔡伟炜申乾宏
Owner ZHEJIANG UNIV
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