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Modified aerogel for filling internal hollow cavity of hollow glass

An airgel and hollow technology, applied in the direction of inorganic chemistry, non-metallic elements, silicon compounds, etc., can solve the problems of pulverization, damage, settlement, etc., achieve excellent heat insulation performance and avoid settlement

Inactive Publication Date: 2017-11-24
安徽艺云玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a modified airgel for filling the hollow cavity inside the insulating glass that can effectively solve the problems of conventional airgel such as settlement, pulverization, and damage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Gel preparation: Mix equal volumes of acetone, absolute ethanol, and deionized water to form a reaction solvent, then add 20g of ethyl orthosilicate to 120g of reaction solvent under stirring, and use it after the addition is complete Adjust the pH value of the solution to 3-4 with the dilute hydrochloric acid solution, then heat to 50-55°C and keep stirring for 3 hours. After the reaction is completed, adjust the pH value of the solution to neutral with a dilute aqueous ammonia solution, pour out the remaining liquid, and obtain a gel;

[0021] (2) Gel aging: Let the gel prepared above stand for 2 days in an environment of 35-40°C, then add absolute ethanol to completely immerse the gel, and continue to stand at 35-40°C until there is no water Ethanol is completely volatilized, and the aging of the gel is completed;

[0022] (3) Modification treatment: Dissolve 5g of modifier in 80g of deionized water to form a modified solution, then add plasma water to the aged gel to...

Embodiment 2

[0026] (1) Gel preparation: Mix equal volumes of acetone, absolute ethanol, and deionized water to form a reaction solvent, then add 25g of ethyl orthosilicate to 200g of reaction solvent with stirring, and use it after the addition is complete Adjust the pH value of the solution to 3-4 with the dilute hydrochloric acid solution, then heat to 50-55°C and keep stirring for 3 hours. After the reaction is completed, adjust the pH value of the solution to neutral with a dilute aqueous ammonia solution, pour out the remaining liquid, and obtain a gel;

[0027] (2) Gel aging: Let the gel prepared above stand for 2 days in an environment of 35-40°C, then add absolute ethanol to completely immerse the gel, and continue to stand at 35-40°C until there is no water Ethanol is completely volatilized, and the aging of the gel is completed;

[0028] (3) Modification treatment: Dissolve 10g of modifier in 100g of deionized water to form a modified solution, then add plasma water to the aged gel t...

Embodiment 3

[0043] The modified aerogels prepared in Example 1, Example 2, Comparative Example 1, and Comparative Example 2 were respectively filled into hollow glass with the same specifications, materials, and components, with a filling thickness of 30 mm, and the hollow glass after filling was measured. The visible light transmittance, U value and Sc value are shown in Table 1.

[0044] Table 1 Performance of the modified aerogel prepared in the embodiment of the present invention

[0045] project

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PUM

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Abstract

The invention discloses modified aerogel for filling an internal hollow cavity of hollow glass and relates to the technical field of hollow glass processing. The modified aerogel is prepared by the steps as follows: (1) gel preparation, (2) gel aging, (3) modification and (4) drying. According to the modified aerogel, conventional aerogel is modified with a self-made modifier, so that the modified aerogel is prepared, the outstanding thermal-insulation property can be developed after the hollow glass is filled with the modified aerogel, tests show that the U value is as low as 0.01 W / m<2>.K and the Sc value is as low as 0.06 when filling thickness of the modified aerogel is 30 mm; besides, with the adoption of the modified aerogel, the problem of settlement of the conventional aerogel after long-time use can be effectively solved, and the problems of powdering, damage and the like caused by production, transportation, frame attaching, hoisting, mounting and the like are solved.

Description

Technical field: [0001] The invention relates to the technical field of hollow glass processing, in particular to a modified aerogel for filling a hollow cavity inside the hollow glass. Background technique: [0002] Insulating glass is a glass product in which two or more pieces of glass are evenly spaced for effective support and bonded and sealed around the periphery to form a dry gas space between the glass layers. The various properties of insulating glass are superior to ordinary double-layer glass, which can effectively play the function of sound insulation and heat insulation. [0003] Aerogel is a porous silicate gel, 95% (volume ratio) is air. Because the bubbles inside it are very small (less than 20mm) as a nanoporous network structure, it has good heat insulation performance, and at the same time it will not block or refract light (the particles are much smaller than the wavelength of visible light), and it has a uniform light-transmitting appearance. Injecting aerog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/159C01B33/158C08F222/20C08F220/58
CPCC01B33/1585C01B33/159C08F222/10C08F222/102C08F220/58
Inventor 郁春云孙才章郁春彪张苗苗
Owner 安徽艺云玻璃有限公司
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