Tungsten-doped cesium bronze nano-power serving as infrared shelter and preparation method of tungsten-doped cesium bronze nano-power

A technology of nano powder and shielding body, applied in the nano field, can solve the problems of high cost, harmful to human environment, poor stability, etc., and achieve the effects of low cost, good environmental protection and good stability

Inactive Publication Date: 2016-08-03
HU BEN NEW MATERIAL TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally prepared cesium-doped tungsten bronze nanopowders have a shielding rate of no more than 90% for infrared rays, and some pro

Method used

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  • Tungsten-doped cesium bronze nano-power serving as infrared shelter and preparation method of tungsten-doped cesium bronze nano-power
  • Tungsten-doped cesium bronze nano-power serving as infrared shelter and preparation method of tungsten-doped cesium bronze nano-power
  • Tungsten-doped cesium bronze nano-power serving as infrared shelter and preparation method of tungsten-doped cesium bronze nano-power

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Experimental program
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Effect test

Embodiment 2

[0027] 1. The molar mass ratio of the main raw materials tungstic acid and cesium nitrate is controlled at 1:0.03;

[0028] 2. Put tungstic acid and cesium nitrate through a pulverizer for pulverization and mixing treatment, use a jet pulverizer to pulverize, control the air pressure in the pulverization chamber to 0.9MPa, and set the pulverization speed to 8000 rpm;

[0029] 3. Under the protection of oxygen, the pulverized mixed powder is calcined in a sintering furnace, and the temperature is raised to 1200°C for calcination at 8°C / min, and the heat treatment is continued for 6h;

[0030] Four, the reaction product is repeatedly washed by absolute ethanol, after drying in an oven at 80°C for 12 hours, it is pulverized by a jet mill, the air pressure in the pulverization chamber is controlled at 0.8MPa, and the pulverization speed is set at 3000 rpm; Obtain the target product.

Embodiment 3

[0032] 1. The molar mass ratio of the main raw materials tungstic acid and cesium sulfate is controlled at 1:0.05;

[0033] 2. Put tungstic acid and cesium sulfate through a pulverizer for pulverization and mixing treatment, use a jet pulverizer to pulverize, control the air pressure in the pulverization chamber to 1.2MPa, and set the pulverization speed to 12000 rpm;

[0034] 3. Under the protection of oxygen, the pulverized mixed powder is calcined in a sintering furnace, heated to 1000°C at 10°C / min for calcination, and the heat treatment is continued for 8h;

[0035] Four, the reaction product is washed repeatedly by absolute ethanol, after 100 DEG C of oven-drying 12h, adopt jet mill to pulverize, the air pressure of pulverizing chamber is controlled as 0.9MPa, and the pulverizing speed is set as 4000 rev / min; Obtain the target product.

Embodiment 4

[0037] 1. The molar mass ratio of the main raw materials tungstic acid and cesium chloride is controlled at 1:0.07;

[0038] 2. Put tungstic acid and cesium chloride through a pulverizer for pulverization and mixing treatment, use a jet pulverizer to pulverize, control the air pressure in the pulverization chamber to 1.20MPa, and set the pulverization speed to 10000 rpm;

[0039] 3. Under the protection of argon gas, the pulverized mixed powder is calcined in a sintering furnace, heated to 900°C at 15°C / min for calcination, and heat-treated for 10 hours;

[0040] Four, the reaction product is repeatedly washed by deionized water, after 120 ° C oven drying for 10 hours, it is pulverized by a jet mill, the air pressure in the pulverization chamber is controlled at 1.0 MPa, and the pulverization speed is set at 5000 rpm; Obtain the target product.

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Abstract

The invention relates to tungsten-doped cesium bronze nano-power serving as an infrared shelter and a preparation method of the tungsten-doped cesium bronze nano-power. The preparation method comprises the following steps that firstly, main raw materials, namely tungstic acid and cesium salt, are weighed, and the molar mass ratio of the tungstic acid to the cesium salt is controlled to be 1:0.01-0.1; secondly, the tungstic acid and the cesium salt are pulverized through a pulverizer and subjected to mixing treatment; thirdly, the pulverized mixed powder is roasted in a sintering furnace under the atmosphere protection; and fourthly, reaction products are washed repeatedly, and target products are obtained after drying and pulverizing. The tungsten-doped cesium bronze nano-power can be applied to outdoor heat insulating materials of buildings, automobiles, trains and the like. The preparation method is low in energy consumption, low in cost, easy to operate, good in environmental friendliness and suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the field of nanotechnology, and in particular relates to a cesium-doped tungsten bronze nano powder as an infrared shielding body and a preparation method thereof. Background technique [0002] Infrared light has an obvious thermal effect, which can easily lead to an increase in the ambient temperature, resulting in architectural glass, car film, outdoor facilities, etc. needing to use heat insulation materials to achieve heat insulation and energy saving effects. In recent years, tungsten bronze has attracted widespread attention due to its excellent photoelectric properties, and tungsten bronze powder doped with cesium has strong absorption characteristics in the infrared region, and at the same time has a high transmittance of visible light, making it shielding infrared, Glass insulation and other aspects have a wide range of application prospects. [0003] Traditionally prepared cesium-doped tungsten bronze nanopowders ha...

Claims

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Application Information

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IPC IPC(8): B22F9/20B22F1/00
Inventor 许荣
Owner HU BEN NEW MATERIAL TECH SHANGHAI
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