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

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

Active Publication Date: 2021-01-15
烟台佳隆纳米产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Examples

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Effect test

Embodiment 1

[0047] Prepare the oily dispersion-free nano cesium tungsten oxide coating as follows:

[0048] (1) Weigh 5.23g (0.0349mol) of cesium hydroxide, 23.89g of ammonium metatungstate, 206.56g of disodium edetate, and 1109.26g of isopropanol, mix well, and heat up at a heating rate of 2°C / min To 150°C, keep warm for 6h to obtain a mixed solution;

[0049] (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 46.8nm;

[0050] (3) Cool the dispersion liquid obtained ...

Embodiment 2

[0054] Prepare the oily dispersion-free nano cesium tungsten oxide coating as follows:

[0055] (1) Weigh 20.85g (0.064mol) of cesium carbonate, 123.56g of ammonium paratungstate, 232.41g of aminotriacetic acid, and 1498.57g of propylene glycol butyl ether, mix well, heat up to 160°C at a heating rate of 4°C / min, and keep it warm for 5h to obtain mixed solution;

[0056] (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 4 °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 66.6nm;

[0057] (3) Cool th...

Embodiment 3

[0061] Prepare the oily dispersion-free nano cesium tungsten oxide coating as follows:

[0062] (1) Weigh 6.8g (0.0349mol) of cesium nitrate, 24.45g of ammonium metatungstate, 206.56g of disodium edetate, and 1109.26g of ethylene glycol butyl ether acetate, and mix them uniformly at 5°C / min. The heating rate was raised to 155°C, and the temperature was kept for 5.5 hours to obtain a mixed solution;

[0063] (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 5° C. / min, and keep the temperature for 3.5 hours to obtain cesium tungsten oxide. Dispersion liquid, solid content is 25%; 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...

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Abstract

The invention relates to the technical field of nano materials, in particular to a preparation method of an oily dispersion-free nano cesium tungsten oxide coating body. The preparation method of theoily dispersion-free nano cesium tungsten oxide coating body comprises the following steps: weighing cesium salt and tungsten salt, adding a chelating agent and an oily solvent, conducting heating to150-160 DEG C, and conducting reacting for 5-6 hours; under an ultrasonic condition, raising the temperature to 230-260 DEG C and conducting reacting for 3-4h to obtain dispersion liquid of cesium tungsten oxide; conducting cooling to a temperature from 30 DEG C to 50 DEG C, adding an oily dispersing agent, conducting heating to 160-180 DEG C, and carrying out activation reaction for 5-6 hours toobtain activated nano cesium tungsten oxide sol; and finally, conducting concentrating until the solid content is 45-50%, and carrying out spray drying to obtain the oily dispersion-free nano cesium tungsten oxide coating body. The preparation method of the oily dispersion-free nano cesium tungsten oxide coating body has the advantages of simple process, short preparation period, cost saving, no need of secondary grinding, and safety and convenience in storage and transportation.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method for preparing an oily 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 conduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00C01G41/02C01D17/00B82Y30/00B82Y40/00
CPCC01G41/00C01G41/02C01D17/003B82Y30/00B82Y40/00C01P2002/72C01P2004/64C01P2004/82
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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