Doped tin oxide material with near infrared reflection performance and preparation method of doped tin oxide material

A near-infrared and tin oxide technology, applied in the direction of tin oxide, etc., can solve the problems of material surface temperature rise, etc., and achieve the effect of little change in surface temperature, not easy to agglomerate, and small particle size

Inactive Publication Date: 2018-05-29
畅的新材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a near-infrared reflective doped tin oxide material and its preparation method, which solves the problem that the current doped tin oxide powder achieves the heat insulation effect through infrared absorption. Problems that cause the surface temperature of the material to rise

Method used

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  • Doped tin oxide material with near infrared reflection performance and preparation method of doped tin oxide material
  • Doped tin oxide material with near infrared reflection performance and preparation method of doped tin oxide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Dissolve tin chloride and titanium chloride in deionized water respectively, and the solvent mass is 20 times the total mass of tin salt and M salt;

[0027] (2) Carry out material mixing treatment and ultrasonically mix for 20 minutes to prepare a hydrothermal reaction precursor;

[0028] (3) Add urea to adjust the pH of the precursor solution to 8;

[0029] (4) Put the precursor solution in a closed hydrothermal reaction kettle, stir and react at 180°C for 6 hours, and the filling degree is 70%;

[0030] (5) The reaction precipitate was repeatedly washed with deionized water, dried at 100°C for 8 hours, pulverized at 5000 rpm for 10 minutes, and calcined at 500°C for 4 hours in a nitrogen atmosphere to obtain the target product.

Embodiment 2

[0032] (1) Dissolve tin chloride and ferric nitrate in ethanol, and the solvent mass is 100 times the total mass of tin salt and M salt;

[0033] (2) Perform material mixing treatment and ultrasonically mix for 25 minutes to obtain a hydrothermal reaction precursor;

[0034] (3) Add ammonia water to adjust the pH of the precursor solution to 9;

[0035] (4) Direct centrifugation to obtain the precipitate;

[0036] (5) The reaction precipitate was repeatedly washed with deionized water, dried at 90°C for 24 hours, pulverized at 6000 rpm for 5 minutes, and directly calcined in air at 500°C for 6 hours to obtain the target product.

Embodiment 3

[0038] (1) Dissolve tin chloride and copper sulfate in deionized water respectively, and the solvent mass is 20 times the total mass of tin salt and M salt;

[0039] (2) Perform material mixing treatment and ultrasonically mix for 30 minutes to obtain a hydrothermal reaction precursor;

[0040] (3) Add potassium hydroxide to adjust the pH of the precursor solution to 9;

[0041] (4) Put the precursor solution in a closed hydrothermal reactor, and stir and react at 160°C for 12 hours;

[0042] (5) The reaction precipitate was repeatedly washed with absolute ethanol, dried at 130°C for 10 hours, pulverized at 2000 rpm for 30 minutes, and calcined in air at 600°C for 3 hours to obtain the target product.

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Abstract

The invention discloses a doped tin oxide material with near infrared reflection performance and a preparation method of the doped tin oxide material and belongs to the technical field of infrared reflection materials. Doped tin oxide has the general formula of MxTO, wherein M is a metal element with a near infrared reflection characteristic, and X denotes the mole ratio of M to Sn in the raw materials and ranges from 0.01 to 0.10. The prepared M-doped tin oxide product has high infrared reflection capability, can effectively insulate heat in an infrared ray reflection manner, the change of surface temperature of the material is small, and the heat insulation property is excellent. The preparation process is easy to control, equipment is simple and easy to operate, and the prepared producthas high purity, small particle size and narrow distribution range, is not prone to agglomeration and is excellent in weather fastness, low in actual application cost and easy to popularize.

Description

technical field [0001] The invention relates to a near-infrared reflective doped tin oxide material and a preparation method thereof, belonging to the technical field of infrared reflective materials. Background technique [0002] Tin oxide (SnO 2 ), as an excellent transparent conductive oxide, was the first commercially available transparent conductive material. Tin oxide has high visible light transmittance, but its infrared blocking performance is insufficient, so it cannot be applied to glass heat insulation films such as buildings, automobiles and trains. Through doping modification, people have developed thermal insulation powders such as ITO and ATO, which are used in the field of thermal insulation. However, due to the high cost and poor thermal insulation effect, people tend to develop nanomaterials with better thermal insulation effect and lower cost. Among them, tungsten bronze is the representative, which has an infrared blocking ability of more than 90%, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02
CPCC01G19/02C01P2004/80
Inventor 李曼郑文李方园宋亚
Owner 畅的新材料科技(上海)有限公司
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