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Polyurea type reflective heat-insulation aerogel transparent glass coating and preparation method thereof

A technology of transparent glass and airgel, applied in reflection/signal coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of reducing transparency and heat insulation performance, low light transmittance of film-attached heat insulation materials, equipment and equipment Big investment and other issues

Active Publication Date: 2021-08-20
HUABAO (TIANJIN) NEW MATERIAL SCI & TECH DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current glass heat insulation materials generally adopt methods such as film sticking, magnetron sputtering or vapor deposition, or simply physically mixing transparent powders such as indium tin oxide and resin to obtain heat insulating materials. The effect is poor, and the film is prone to defects such as bubbles
Magnetron sputtering and vapor deposition require special instruments and equipment with large investment and high energy consumption
The physical mixing method will cause uneven dispersion of powder, easy sedimentation of materials, and uneven distribution of film-forming materials, thereby reducing transparency and heat insulation performance

Method used

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  • Polyurea type reflective heat-insulation aerogel transparent glass coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This embodiment provides a polyurea-type reflective heat-insulating airgel transparent glass coating, which is prepared by the following preparation method:

[0060] S1: Slowly add 1.25g of nano-zinc carbonate powder and 5g of water glass into 10g of stannous acetate ethanol solution with a mass concentration of 2.368% under stirring, and stir to disperse evenly;

[0061] S2: Add 1.7g of hydrogen peroxide with a mass concentration of 1%. After no gas overflows, filter and wash the filtered gel with pure water. The clean standard is to use silver nitrate titration to obtain perovskite without visual precipitation. Structured zinc tin oxide and silica composite gel;

[0062] S3: Dissolving urea in pure water to obtain a urea solution, and at 20°C, the mass concentration of the urea solution is 5.71%; meanwhile, mix the perovskite structure zinc tin oxide and silicon dioxide obtained in step S2 with stirring The composite gel is mixed with the urea solution and stirred ev...

Embodiment 2

[0071] This embodiment provides a polyurea-type reflective heat-insulating airgel transparent glass coating, which is prepared by the following preparation method:

[0072] S1: Slowly add 12.5g of nano-zinc carbonate powder and 50g of water glass into 100g of stannous acetate ethanol solution with a mass concentration of 12.5% ​​under stirring, and stir to disperse evenly;

[0073] S2: Add 17g of hydrogen peroxide with a mass concentration of 5%. After no gas overflows, filter and clean the filtered gel with pure water. The standard for cleaning is to use silver nitrate titration to obtain a perovskite structure without visual precipitation. Composite gel of zinc tin oxide and silicon dioxide;

[0074] S3: Dissolving urea in pure water to obtain a urea solution, and at 20°C, the mass concentration of the urea solution is 25%; meanwhile, mix the perovskite structure zinc tin oxide and silicon dioxide obtained in step S2 under stirring The composite gel is mixed with the urea s...

Embodiment 3

[0083] This embodiment provides a polyurea-type reflective heat-insulating airgel transparent glass coating, which is prepared by the following preparation method:

[0084] S1: Slowly add 125g of nano-zinc carbonate powder and 50g of water glass into 100g of stannous acetate ethanol solution with a mass concentration of 23.68% under stirring, and stir to disperse evenly;

[0085] S2: Add 170g of hydrogen peroxide with a mass concentration of 10%. After no gas overflows, filter and wash the filtered gel with pure water. The standard for cleaning is to use silver nitrate titration to obtain a perovskite structure without visual precipitation. Composite gel of zinc tin oxide and silicon dioxide;

[0086] S3: Dissolving urea in pure water to obtain a urea solution, and at 20°C, the mass concentration of the urea solution is 57.1%; meanwhile, mix the perovskite structure zinc tin oxide and silicon dioxide obtained in step S2 with stirring The composite gel is mixed with the urea s...

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Abstract

The invention discloses a polyurea type reflective heat-insulating aerogel transparent glass coating and a preparation method thereof, and relates to the field of glass heat-insulating materials. The method comprises the following steps: mixing composite gel of zinc tin oxide with a perovskite structure and silicon dioxide with a urea solution, sequentially adding a material containing an active aldehyde functional group, a polyvinylpyrrolidone ethanol solution and a water-based auxiliary agent in a stirring state to obtain a first component, and taking an isocyanate curing agent as a second component, mixing ammonia water, water glass and silver nitrate to obtain a third component; and mixing the first component, the second component and the third component. The polyurea type reflective heat-insulation aerogel transparent glass coating which is stable, uniform, low in cost, high in light transmittance, good in heat insulation property, weather-resistant and wear-resistant can be prepared by the method.

Description

technical field [0001] The invention relates to the technical field of glass heat insulation materials, in particular to a polyurea reflective heat insulation airgel transparent glass coating and a preparation method thereof. Background technique [0002] The current glass heat insulation materials generally adopt methods such as film sticking, magnetron sputtering or vapor deposition, or simply physically mixing transparent powders such as indium tin oxide and resin to obtain heat insulating materials. The effect is poor, and the film is prone to defects such as bubbles. Magnetron sputtering and vapor deposition require special instruments and equipment with large investment and high energy consumption. The physical mixing method will cause uneven dispersion of powder, easy sedimentation of materials, and uneven distribution of film-forming materials, thereby reducing transparency and heat insulation performance. [0003] In view of this, the present invention is proposed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D5/33C09D7/61C09D7/65
CPCC09D175/02C09D5/004C09D7/61C09D7/65C08K2003/0806C08L2201/10C08L39/06C08K3/22C08K3/36C08K3/08
Inventor 孙晔张鼎昊吴娜陈建伟白凤祥王建龙刘鹏韩连山张晓奇任培贤
Owner HUABAO (TIANJIN) NEW MATERIAL SCI & TECH DEV CO LTD
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