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Preparation method of tin antimony oxide (ATO) water-based nano-dispersion slurry

A water-based and nano-dispersion technology of antimony tin oxide, which is applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of increasing the viscosity of the slurry, hindering the contact between particles, and reducing the antistatic performance of ATO. The effect of maintaining the characteristics and expanding the application range

Inactive Publication Date: 2014-10-01
GUANGXI NATUO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While improving the stability of the slurry, these functional additives form a thicker space barrier layer on the surface of the particles, which hinders the contact between the particles and reduces the antistatic performance of ATO; on the other hand, the addition of polymer dispersants will increase The viscosity of the slurry is not conducive to the preparation of ATO nano-slurry with high solid content, which makes it unable to meet the various requirements of users

Method used

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  • Preparation method of tin antimony oxide (ATO) water-based nano-dispersion slurry
  • Preparation method of tin antimony oxide (ATO) water-based nano-dispersion slurry
  • Preparation method of tin antimony oxide (ATO) water-based nano-dispersion slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 82.11g SnCl 4 and 3.91 g SbCl 3 (SnO 2 :Sb 2 o 3 =95:5) was dissolved in 300ml 2mol / L hydrochloric acid solution (to prevent the metal salts of tin and antimony from being hydrolyzed during the dissolution process), add ammonia water under stirring, control the reaction temperature at 5°C, react until the precipitation is complete, and finally control the pH =7.0. Then filter, wash with deionized water, dehydrate with ethanol, and dry in vacuum at 40°C for 6.0h to obtain the ATO precursor. Mix ATO precursor with 0.1mol / L H 2 SO 4 The solutions were mixed in a mass ratio of 1:2 (H 2 SO 4 The dosage is about 2% by weight of ATO), dispersed at high speed for 30 minutes, spray-dried (inlet air temperature 180°C, outlet temperature 60°C), after drying, the powder was calcined at 400°C for 5.0h to obtain modified ATO nanopowder.

[0031] The modified ATO nanopowder and deionized water are formulated into ATO slurry at a mass concentration of 10%, mixed evenly, a...

Embodiment 2

[0033] Take 82.11g SnCl 4 and 3.91 g SbCl 3 (SnO 2 :Sb 2 o 3 =95:5) was dissolved in 300ml 2mol / L hydrochloric acid solution, ammonia water was added under stirring, the reaction temperature was controlled at 0°C, and the reaction was carried out until the precipitation was complete, and finally the pH was controlled to be 7.0. Then filter, wash with deionized water, dehydrate with ethanol, and vacuum dry at 80° C. for 3.0 h to obtain the ATO precursor. Mix ATO precursor with 0.06mol / L H 3 PO 4 The solution was mixed in a mass ratio of 1:3.4 ((H 3 PO 4 The dosage is about 2% of the weight of ATO), dispersed at high speed for 30 minutes, and dried under vacuum stirring (drying temperature 65° C.). After drying, the powder was calcined at 600° C. for 3.0 hours to obtain the modified ATO nanopowder.

[0034]Prepare the modified ATO nanopowder and deionized water into ATO slurry at a mass concentration of 25%, mix well, grind and disperse in a sand mill, adjust the pH valu...

Embodiment 3

[0036] Take 77.79gSnCl 4 and 9.12gSb 2 (SO 4 ) 3 (SnO 2 :Sb 2 o 3 =90:10) was dissolved in 300ml of 2mol / L sulfuric acid solution, ammonia water was added under stirring, the reaction temperature was controlled at 30°C, and the reaction was carried out until the precipitation was complete, and finally the pH was controlled to be 7.0. Then filter, wash with deionized water, dehydrate with ethanol, and vacuum dry at 90° C. for 2.0 h to obtain the ATO precursor. Mix ATO precursor with 0.02mol / L H 2 SO 4 The solution was mixed at a mass ratio of 1:10.2 (H 2 SO 4 The dosage is about 2% of the weight of ATO), dispersed at high speed for 30 minutes, spray-dried (inlet air temperature 180°C, outlet temperature 80°C), after drying, the powder was calcined at 750°C for 1.0h to obtain modified ATO nanopowder.

[0037] The modified ATO nanopowder and deionized water are formulated into ATO slurry at a mass concentration of 40%, mixed evenly, and ground and dispersed in a sand mi...

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Abstract

The invention discloses a preparation method of tin antimony oxide (ATO) water-based nano-dispersion slurry. According to the method, the high-stability ATO water-based nano-dispersion slurry can be prepared by grafting a part of sulfonyl or phosphoryl or other groups on the surfaces of ATO particles. The preparation method is simple in technology, safe and environment-friendly, low in cost, and easy for realization of large-scale industrialization.

Description

technical field [0001] The invention belongs to the technical field of nano-antimony tin oxide materials, and in particular relates to a preparation method of an antimony tin oxide aqueous nano-dispersion slurry. Background technique [0002] Antimony doped tin oxide (ATO for short) is a new multifunctional transparent material with high performance and high added value in the non-ferrous metal industry chain, because of its good electrical conductivity, light color transparency, and blocking infrared and ultraviolet rays , good weather resistance, stability and catalytic properties, etc., are widely used in the fields of transparent thermal insulation coating film, anti-static coating and anti-fouling self-cleaning coating film. [0003] Due to the small particle size, large specific surface area, and high surface energy of nano-ATO, the particles are easily agglomerated, which affects the dispersion stability of this type of product to a certain extent and limits its appli...

Claims

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Application Information

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IPC IPC(8): C09C1/00C09C3/06C09D7/12
Inventor 尹作栋孙皓刘旭刘炳山李辉
Owner GUANGXI NATUO TECH CO LTD
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