A kind of polyurea type reflective heat insulation aerogel transparent glass coating and preparation method thereof

A transparent glass and airgel technology, applied in the direction of reflection/signal coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of easy sedimentation of materials, low light transmittance of film-attached heat insulation materials, uneven powder dispersion, etc. question

Active Publication Date: 2022-06-17
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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  • A kind of polyurea type reflective heat insulation aerogel transparent glass coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The present embodiment provides a polyurea-type reflective and heat-insulating aerogel 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 to 10g of 2.368% stannous acetate ethanol solution under stirring, and stir and disperse evenly;

[0061] S2: Add 1.7 g of hydrogen peroxide with a mass concentration of 1%, and after no gas overflows, filter and clean the gel obtained after filtering with pure water, and the standard of cleaning is to use silver nitrate to titrate and see that there is no precipitation to obtain perovskite The composite gel of zinc tin oxide and silica with structure;

[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%; at the same time, under stirring, the perovskite-structured zinc tin oxide and silicon dioxide obtained in step S2 are mixed The composi...

Embodiment 2

[0071] The present embodiment provides a polyurea-type reflective and heat-insulating aerogel 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 to 100g of 12.5% ​​stannous acetate ethanol solution under stirring, and stir and disperse evenly;

[0073] S2: Add 17 g of hydrogen peroxide with a mass concentration of 5%, and after no gas overflows, filter and clean the gel obtained after filtering with pure water, and the standard for cleaning is to use silver nitrate titration to visually obtain the perovskite structure without precipitation The composite gel of zinc tin oxide and silica;

[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%; at the same time, under stirring, the perovskite-structured zinc tin oxide and silicon dioxide obtained in step S2 are mixed The composite gel is...

Embodiment 3

[0083] The present embodiment provides a polyurea-type reflective and heat-insulating aerogel 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 to 100g of 23.68% stannous acetate ethanol solution under stirring, and stir and disperse evenly;

[0085] S2: Add 170 g of hydrogen peroxide with a mass concentration of 10%, and after no gas overflows, filter and clean the gel obtained after filtering with pure water, and the standard for cleaning is to use silver nitrate titration to visually obtain the perovskite structure without precipitation The composite gel of zinc tin oxide and silica;

[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%; at the same time, under stirring, the perovskite-structured zinc tin oxide and silicon dioxide obtained in step S2 are mixed The composite gel ...

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Abstract

The invention discloses a polyurea-type reflective heat-insulating airgel transparent glass coating and a preparation method thereof, and relates to the field of glass heat-insulation materials; the method comprises: combining zinc tin oxide with a perovskite structure and silica The glue is mixed with urea solution, and the material containing active aldehyde functional groups, polyvinylpyrrolidone ethanol solution and water-based additives are sequentially added under stirring to obtain the first component. The isocyanate curing agent is used as the second component. Ammonia water, The third component is obtained after water glass and silver nitrate are mixed; the first component, the second component and the third component are mixed. The method can prepare a polyurea reflective heat-insulating airgel transparent glass coating that is stable and uniform, low in cost, high in light transmittance, good in heat insulation, and weather-resistant and wear-resistant.

Description

technical field [0001] The invention relates to the technical field of glass thermal insulation materials, in particular to a polyurea type reflective thermal insulation aerogel transparent glass coating and a preparation method thereof. Background technique [0002] The current glass thermal insulation materials are generally obtained by filming, magnetron sputtering or vapor deposition, or simply physically mixing transparent powders such as indium tin oxide with resin. The effect is poor, and the film is prone to defects such as bubbles. Magnetron sputtering and vapor deposition require large investment in special equipment and high energy consumption. The physical mixing method will cause the problem of uneven powder dispersion, easy sedimentation of materials, and uneven distribution of film-forming materials, thereby reducing transparency and thermal insulation performance. [0003] In view of this, the present invention is proposed. SUMMARY OF THE INVENTION [00...

Claims

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Application Information

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Patent Type & Authority Patents(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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