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Preparation method of water-based dispersion-free nano cesium tungsten oxide coating body

A technology of cesium tungsten oxide and water-based dispersant is applied in the field of preparation of water-based dispersion-free nano-cesium tungsten oxide coating, which can solve the problems of complicated process and expensive equipment, avoid secondary pollution, reduce transportation cost, The effect of reducing security risks

Active Publication Date: 2021-01-05
烟台佳隆纳米产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the composite tungsten oxide dispersion and the dispersion liquid disclosed in the invention, the preparation of the dispersion and the dispersion liquid is equivalent to the secondary processing of the cesium tungsten oxide, which requires a grinding process, expensive equipment and complicated process

Method used

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  • Preparation method of water-based dispersion-free nano cesium tungsten oxide coating body
  • Preparation method of water-based dispersion-free nano cesium tungsten oxide coating body
  • Preparation method of water-based dispersion-free nano cesium tungsten oxide coating body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Prepare the water-based dispersion-free nano cesium tungsten oxide coating body as follows:

[0050] (1) Weigh 6.82g (0.0349mol) of cesium nitrate, 24.77g of ammonium metatungstate, 182.64g of aminotrimethylene phosphonic acid, and 1111.95g of pure water, mix well, and heat up to 150°C at a heating rate of 2°C / min. Insulated for 6h to obtain a mixed solution;

[0051] (2) Transfer the mixed solution obtained in step (1) into a reaction kettle with an ultrasonic device, turn on the ultrasonic device, raise the temperature to 230°C at a heating rate of 2°C / min, and keep it warm for 4h to obtain a dispersed solution of cesium tungsten oxide. liquid, the solid content is 21%; wherein the XRD spectrum of cesium tungsten oxide is as follows figure 1 As shown, its crystal form is Cs 0.3 WO 3 or Cs 0.32 WO 3 ; The particle size spectrum of cesium tungsten oxide in the dispersion liquid is as figure 2 As shown, its average particle size is 45.9nm;

[0052] (3) Cool the d...

Embodiment 2

[0057] Prepare the water-based dispersion-free nano cesium tungsten oxide coating body as follows:

[0058] (1) Weigh 10.76g (0.064mol) of cesium chloride, 61.78g of ammonium paratungstate, 517.13g of sodium ethylenediamine tetramethylene phosphonate, and 1593.70g of pure water, mix them evenly, and heat up to 160°C, keep warm for 5h to get the mixture;

[0059] (2) Transfer the mixed solution obtained in step (1) into a reaction kettle with an ultrasonic device, turn on the ultrasonic device, raise the temperature to 260 °C at a heating rate of 5 °C / min, and keep it warm for 3 hours to obtain a dispersed solution of cesium tungsten oxide. liquid, the solid content is 39%; wherein the XRD pattern of cesium tungsten oxide is as follows Figure 4 As shown, its crystal form is Cs 0.3 WO 3 or Cs 0.32 WO 3 ; The particle size spectrum of cesium tungsten oxide in the dispersion liquid is as Figure 5 As shown, its average particle size is 65.4nm;

[0060] (3) Cool the dispers...

Embodiment 3

[0064] Prepare the water-based dispersion-free nano cesium tungsten oxide coating body as follows:

[0065] (1) Weigh 5.23g (0.0349mol) of cesium hydroxide, 24.77g of ammonium metatungstate, 182.64g of aminotrimethylene phosphonic acid, and 1111.95g of pure water, mix well, and heat up to 155°C at a heating rate of 4°C / min , keep warm for 5.5h to obtain the mixed solution;

[0066] (2) Transfer the mixed solution obtained in step (1) into a reaction kettle with an ultrasonic device, turn on the ultrasonic device, raise the temperature to 240° C. at a heating rate of 4° C. / min, and keep the temperature for 3.5 hours to obtain cesium tungsten oxide. Dispersion liquid, solid content is 20%; Wherein the XRD spectrum of cesium tungsten oxide is as follows Figure 7 As shown, its crystal form is Cs 0.3 WO 3 or Cs 0.32 WO 3 ; The particle size spectrum of cesium tungsten oxide in the dispersion liquid is as Figure 8 As shown, its average particle size is 55.1nm;

[0067] (3) ...

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Abstract

The invention relates to the technical field of nano materials, in particular to a preparation method of a water-based dispersion-free nano cesium tungsten oxide coating body. The preparation method of the water-based dispersion-free nano cesium tungsten oxide coating body comprises the following steps of: weighing a cesium salt and a tungsten salt, adding a chelating agent and water, performing heating to 150-160DEG C, and carrying out reaction for 5-6h; under an ultrasonic condition, raising the temperature to 230-260DEG C and carrying out reaction for 3-4h to obtain a dispersion liquid of cesium tungsten oxide; performing cooling to 50DEG C-80DEG C, adding a water-based dispersing agent and a defoaming agent, performing heating to 160-180DEG C, and carrying out activation reaction for 5-6h to obtain an activated nano cesium tungsten oxide sol; and finally, performing concentrating to a solid content of 45-50%, and carrying out spray drying to obtain the water-based dispersion-free nano cesium tungsten oxide coating body. The preparation method of the water-based dispersion-free nano cesium tungsten oxide coating body is simple in process, short in preparation period, cost-saving, free of secondary grinding and safe and convenient to store and transport.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method for preparing a water-based dispersion-free nano cesium tungsten oxide coating. Background technique [0002] WO 3 It has excellent performance in electrochromism, catalysis, gas sensitivity, etc. Its composite oxide (tungsten bronze) generally refers to a metal oxide with a darker metallic luster, and is usually a metal conductor or metal semiconductor, tungsten bronze The general formula is A x WO 3 , However, with the difference in the type and number of moles of cations (different values ​​of A and x), the structure and color of the compound will be different (J Analytical and Pyrolysis, 2000, 56:23-31). At present, there are more potassium cesium tungsten bronze and cesium tungsten bronze. Because of its low resistance, excellent visible light transmittance and near-infrared shielding performance, cesium tungsten bronze is widely used in the preparation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00B82Y30/00B82Y40/00
CPCC01G41/00B82Y30/00B82Y40/00C01P2004/64C01P2002/72C01P2004/04
Inventor 岳都元贾志忠王茂智刘静
Owner 烟台佳隆纳米产业有限公司
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