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
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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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