Toughened glass thermal insulation coating and preparation method thereof

A heat-insulating coating and heat-insulating layer technology, applied in glass manufacturing equipment, coatings, glass tempering, etc., can solve problems such as unevenness, affecting heat insulation effect, coating cracking, etc., and achieve enhanced scratch resistance And weather resistance, reduce the probability of fragmentation or self-explosion, good effect of dispersing stress

Active Publication Date: 2021-02-26
徐州创合新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above methods only use powder heat insulation materials for heat insulation, and the organic polymer film-forming substances contained in the coating are likely to cause cracking and unevenness of the coating under the condition of high temperature quenching during tempering treatment, which significantly affects the heat insulation effect
In addition, the organic polymer film-forming substance has a weak bonding force with the smooth glass surface, resulting in poor scratch resistance and weather resistance of the thermal insulation coating, and it is easy to fall off under external force

Method used

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  • Toughened glass thermal insulation coating and preparation method thereof

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Embodiment 1

[0031] A method for preparing a temperable glass heat-insulating coating in this embodiment includes the following preparation steps:

[0032] (1) Calcium acetate is dissolved in silica sol (solid content is 20%, particle diameter is 10~20nm), and the addition amount of calcium acetate is respectively controlled to contain SiO in silica sol 2 5%, 12%, 16% and 20% of the mass to obtain the precursor solution of the porous thermal insulation layer.

[0033] (2) Coat the porous insulation layer precursor solution in step (1) on the surface of the glass substrate, raise the temperature to 160-180°C for heating and curing for 15 minutes, then send it to the tempering furnace and keep it at 680-700°C for 5 minutes, then The temperature is lowered to below 80° C. within 3 minutes to obtain tempered glass with a porous heat-insulating layer.

[0034] (3) coating the heat-insulating coating on the surface of the porous heat-insulating layer in step (2), and curing it to obtain a tempe...

Embodiment 2

[0048] A method for preparing a temperable glass heat-insulating coating in this embodiment includes the following preparation steps:

[0049] (1) Calcium acetate is dissolved in silica sol (solid content is 20%, particle diameter is 10~20nm), and the addition amount of calcium acetate is controlled to be SiO contained in silica sol 2 12% of the mass to obtain the precursor solution of the porous thermal insulation layer.

[0050] (2) Coat the precursor solution of the porous insulation layer in step (1) on the surface of the glass substrate, raise the temperature to 180-200°C for heating and curing for 10 minutes, then send it to the tempering furnace and keep it at 700-720°C for 6 minutes, then The temperature is lowered to below 80° C. within 3 minutes to obtain tempered glass with a porous heat-insulating layer.

[0051] (3) coating the heat-insulating coating on the surface of the porous heat-insulating layer in step (2), and curing it to obtain a temperable glass heat-i...

Embodiment 3

[0056] A method for preparing a temperable glass heat-insulating coating in this embodiment includes the following preparation steps:

[0057] (1) Calcium acetate is dissolved in silica sol (solid content is 10%, particle diameter is 10~50nm), and the addition amount of calcium acetate is controlled to be SiO contained in silica sol 2 16% of the mass to obtain the precursor solution of the porous thermal insulation layer.

[0058] (2) Coat the porous insulation layer precursor solution in step (1) on the surface of the glass substrate, raise the temperature to 180-200°C for heating and curing for 20 minutes, then send it to the tempering furnace and keep it at 700-720°C for 5 minutes, then The temperature is lowered to below 80° C. within 2 minutes to obtain tempered glass with a porous heat-insulating layer.

[0059] (3) coating the heat-insulating coating on the surface of the porous heat-insulating layer in step (2), and curing it to obtain a temperable glass heat-insulati...

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Abstract

The invention belongs to the technical field of glass functional coatings, and discloses a toughened glass thermal insulation coating and a preparation method thereof. The preparation method comprisesthe following steps: dissolving calcium acetate in silica sol to obtain a porous thermal insulation layer precursor solution, coating the surface of a glass substrate with the porous thermal insulation layer precursor solution, heating to 160-200 DEG C, carrying out heating curing treatment, sending to a toughening furnace, and carrying out physical toughening treatment within a temperature rangeof 680-720 DEG C to obtain toughened glass with a porous thermal insulation layer; and coating the surface of the porous thermal insulation layer with a thermal insulation coating, and carrying out curing treatment to obtain the thermal insulation coating. The porous heat insulation layer is prepared between the heat insulation coating layer and the tempered glass, so that a better heat insulation effect can be achieved, the binding force between the heat insulation coating and the glass substrate can be remarkably enhanced, and the impact resistance of the tempered glass is enhanced.

Description

technical field [0001] The invention belongs to the technical field of glass functional coatings, and in particular relates to a temperable glass thermal insulation coating and a preparation method thereof. Background technique [0002] Tempered glass is obtained by cutting ordinary annealed glass into the required size, then heating it to about 700 degrees close to the softening point, and then cooling it quickly and uniformly. After tempering, uniform compressive stress is formed on the surface of the glass, while tensile stress is formed inside, which improves the bending and impact strength of the glass, and its strength is about four times that of ordinary annealed glass. The increase of its bearing capacity improves its fragility. Even if the tempered glass is broken, it will appear as small fragments without sharp angles, which greatly reduces the harm to the human body. Compared with ordinary glass, tempered glass has 3-5 times higher resistance to rapid cooling and...

Claims

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Application Information

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IPC IPC(8): C03B27/012C03C17/42C09D133/10C09D161/06C09D183/04C09D175/04C09D7/61C09D7/63
CPCC03B27/012C03C17/42C03C2217/21C03C2217/445C03C2217/475C03C2217/478C03C2218/32C08K2201/011C09D133/10C09D161/06C09D175/04C09D183/04C09D7/61C09D7/63C08K3/22C08K5/54C08K13/02C08K3/36
Inventor 葛祖根宋庆陆晔
Owner 徐州创合新材料科技有限公司
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