A kind of toughened glass thermal insulation coating and preparation method thereof

A technology of thermal insulation coating and thermal insulation layer, used in glass manufacturing equipment, coating, glass tempering and other directions, can solve the problem of poor scratch resistance and weather resistance of thermal insulation coating, weak bonding force with smooth glass surface, Affect the heat insulation effect and other problems, achieve good heat insulation effect, reduce the probability of fragmentation or self-explosion, and enhance the effect of bonding force

Active Publication Date: 2021-11-05
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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  • A kind of toughened glass thermal insulation coating and preparation method thereof
  • A kind of toughened glass thermal insulation coating and preparation method thereof

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Experimental program
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Effect test

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 temperable glass thermal insulation coating and a preparation method thereof. Dissolve calcium acetate in silica sol to obtain the precursor solution of the porous insulation layer, which is then coated on the surface of the glass substrate, heated to 160-200°C for heating and curing, and then sent to the tempering furnace at a temperature range of 680-720°C Physical tempering treatment is performed inside to obtain tempered glass with a porous heat-insulating layer; the heat-insulating coating is coated on the surface of the porous heat-insulating layer, and cured to obtain a heat-insulating coating. The present invention can achieve better heat insulation effect by preparing a layer of porous heat insulation layer between the heat insulation coating layer and the tempered glass, and can significantly enhance the bonding force between the heat insulation coating and the glass substrate, as well as strengthen the tempered glass. Impact resistance of glass.

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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Patent Type & Authority Patents(China)
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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