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Transparent thermal insulation material, manufacturing method thereof and transparent thermal insulation film

A technology of heat insulation materials and manufacturing methods, applied in the direction of coating, etc., can solve the problems of dark color of heat insulation film, insufficient infrared barrier performance, inability to achieve high heat insulation performance, etc., and achieve the effect of good conductivity

Active Publication Date: 2011-08-10
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, heat insulation film products are mainly made of silver multilayer films. The biggest disadvantage of this heat insulation film is that the silver coating is not stable in the air, and it needs to be made into a multilayer film and expensive sputtering process is used, so the price of the product is relatively high. high
[0003] Another kind of insulation film is made of general transparent oxide conductive material, such as antimony tin oxide (SnO 2 : Sb; referred to as ATO) or indium tin oxide (SnO 2 : In; referred to as ITO), its plasma wavelength range is between 1000nm and 2500nm, because its conductivity is too low, resulting in a plasma wavelength greater than 1000nm, so there will still be some infrared rays with a wavelength between 800nm ​​and 1000nm. , cannot achieve high thermal insulation performance
[0004] In addition, the thermal insulation film can also use the material LaB with a plasma wavelength range between 700 and 1100nm. 6 However, although its high conductivity can block more infrared rays, LaB 6 It also absorbs in the visible light range, so the color of the heat insulation film formed is too dark to meet the requirements of high transparency and high heat insulation performance at the same time
[0005] In addition, there is also a transparent heat-insulating film made of tungsten oxide doped with alkali-metal elements as an infrared barrier material. However, when the visible light transmittance is greater than 70%, the infrared barrier performance is insufficient; If the infrared blocking rate is greater than 90%, the visible light transmittance will drop below 70%, so it is impossible to achieve high visible light transmittance and high infrared blocking rate at the same time

Method used

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  • Transparent thermal insulation material, manufacturing method thereof and transparent thermal insulation film
  • Transparent thermal insulation material, manufacturing method thereof and transparent thermal insulation film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] [Example 1] Preparation of a thermal insulation material with a molar ratio of Cs:W:Cl=0.33:1:0.03 and a transparent thermal insulation film made of this material

[0042] 10g of ammonium metatungstate (manufactured by SHOWA) was formulated into a 30wt% aqueous solution and stirred evenly to obtain transparent liquid A1. Get 0.07g ammonium chloride (produced by SHOWA), add transparent liquid A1, stir well, obtain transparent liquid A1'. Take 2.2g of cesium carbonate (manufactured by Alfa Aesar) to prepare a 50wt% aqueous solution, and stir evenly to obtain a transparent liquid B1. Then slowly drop the liquid B1 into the liquid A1' while maintaining the stirring of the liquid A1' to obtain the transparent mixed liquid C1. The mixed liquid was heated at 145°C to obtain a powdery initial product. The initial product was heated at 550° C. for 20 minutes under a reducing environment of 10 vol % hydrogen. The heat insulating material powder product P1 having a molar ratio ...

Embodiment 2

[0045] [Example 2] Preparation of a thermal insulation material with a molar ratio of Cs:W:Cl=0.33:1:0.05 and a transparent thermal insulation film made of this material

[0046] 10g of ammonium metatungstate was formulated into a 30wt% aqueous solution and stirred evenly to obtain transparent liquid A2. Get 0.11g ammonium chloride, add transparent liquid A2, stir, obtain transparent liquid A2'. Take 2.2g of cesium carbonate to prepare a 50wt% aqueous solution, and stir evenly to obtain a transparent liquid B2. Then slowly drop the liquid B2 into the liquid A2' while maintaining the stirring of the liquid A2' to obtain the transparent mixed liquid C2. The mixed liquid C2 was heated at 145°C to obtain a powdery initial product. The initial product was heated at 550° C. for 20 minutes under a reducing environment of 10 vol % hydrogen to obtain a thermal insulation material powder product P2 with a molar ratio of Cs:W:Cl=0.33:1:0.05.

[0047] The thermal insulation material po...

Embodiment 3

[0049] [Example 3] Preparation of a thermal insulation material with a molar ratio of Cs:W:Cl=0.33:1:0.20 and a transparent thermal insulation film made of this material

[0050] 10g of ammonium metatungstate was formulated into a 30wt% aqueous solution and stirred evenly to obtain transparent liquid A3. Get 0.44g ammonium chloride, add transparent liquid A3, stir, obtain transparent liquid A3 '. Take 2.2g of cesium carbonate to prepare a 50wt% aqueous solution, and stir evenly to obtain transparent liquid B3. Then slowly drop the liquid B3 into the liquid A3' while maintaining the stirring of the liquid A3' to obtain the transparent mixed liquid C3. The mixed liquid C3 was heated at 145°C to obtain a powdery initial product. The initial product was heated at 550° C. for 20 minutes under a reducing environment of 10 vol % hydrogen to obtain a thermal insulation material powder product P3 with a molar ratio of Cs:W:Cl=0.33:1:0.20.

[0051] The thermal insulation material pow...

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Abstract

The invention relates to a transparent thermal insulation material, a manufacturing method thereof and a transparent thermal insulation film. The transparent thermal insulation material is represented by MxWO3-yAy, wherein M is at least one alkali family metal element, W is tungsten, O is oxygen, A is an halogen element, x is more than 0 and less than or equal to 1, and y is more than 0 and less than or equal to 0.5; and the material is formed by co-doping cations of at least one alkali family metal and anions of the halogen in tungstic oxide. The transparent thermal insulation film comprisesone or more than one transparent thermal insulation layer, wherein the transparent thermal insulation layer contains the MxWO3-yAy material.

Description

technical field [0001] The invention relates to a transparent heat insulating material, in particular to a transparent heat insulating material with anion and cation co-doped tungsten oxide. Background technique [0002] Generally, heat insulation film products are mainly made of silver multilayer films. The biggest disadvantage of this heat insulation film is that the silver coating is not stable in the air, and it needs to be made into a multilayer film and expensive sputtering process is used, so the price of the product is relatively high. high. [0003] Another kind of insulation film is made of general transparent oxide conductive material, such as antimony tin oxide (SnO 2 : Sb; referred to as ATO) or indium tin oxide (SnO 2 : In; referred to as ITO), its plasma wavelength range is between 1000nm and 2500nm, because its conductivity is too low, resulting in a plasma wavelength greater than 1000nm, so there will still be some infrared rays with a wavelength between 8...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23C08J7/06
Inventor 钟宝堂钟松政陈哲阳张义和傅怀广
Owner IND TECH RES INST
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