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Energy-saving, heat-preserving and low-emissivity glass for light buildings and its preparation method

A low-emissivity glass, building energy-saving technology, applied in the field of low-emissivity glass, can solve problems such as shortening the life of the coating layer, and achieve the effect of enhancing anti-oxidation performance, ensuring mechanical properties, and refining Ag crystal grains

Active Publication Date: 2019-12-27
江西清江建设发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcoming that the coating layer of low-emissivity glass in the prior art is on the surface of the glass and is easily affected by the external environment, thereby reducing the service life of the coating layer, the purpose of the present invention is to provide a laminated glass, which seals the coating layer in the glass interlayer, So as to effectively prevent the attenuation of the coating layer and improve its service life

Method used

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  • Energy-saving, heat-preserving and low-emissivity glass for light buildings and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing energy-saving, heat-preserving and low-emissivity glass for light buildings, comprising the following steps:

[0030] Pass the water glass through a cation exchange resin to obtain an acidic silicic acid solution, adjust the pH value of the acidic silica sol to 8.3, then stir at room temperature for 50 min, then adjust the pH of the alkaline silica sol to 5.3 to obtain Silica sol, then adding triethylamine to the silica sol, then pouring it into a mold with polyimide foam fiber reinforcement to carry out gelation at room temperature, and then aging at 120°C to obtain two Silica wet gel, drying the silica wet gel to obtain silica aerogel;

[0031] The silicon dioxide is gas-condensed to form a thin film, placed in a vacuum deposition chamber, and then the vacuum deposition chamber is evacuated to 10 - 3Pa, with a composite target of silver, copper and nickel, and then pass argon into the vacuum deposition chamber until the pressure is 2Pa, the fl...

Embodiment 2

[0034] A method for preparing energy-saving, heat-preserving and low-emissivity glass for light buildings, comprising the following steps:

[0035] Pass water glass through a cation exchange resin to obtain an acidic silicic acid solution, adjust the pH value of the acidic silica sol to 7.5, then stir at room temperature for 45 minutes, then adjust the pH of the alkaline silica sol to 4.5 to obtain Silica sol, then add potassium hydroxide to the silica sol, then pour it into a mold with polyurethane foam fiber reinforcement to carry out standing gel at room temperature, and then age at 100°C to obtain silica wet Gel, drying the silica wet gel to obtain silica aerogel;

[0036] The silicon dioxide is gas-condensed to form a thin film, placed in a vacuum deposition chamber, and then the vacuum deposition chamber is evacuated to 10 - 3 Pa, with a composite target of silver, copper and nickel, argon gas is introduced into the vacuum deposition chamber until the pressure is 3Pa, ...

Embodiment 3

[0039] A method for preparing energy-saving, heat-preserving and low-emissivity glass for light buildings, comprising the following steps:

[0040] Pass water glass through a cation exchange resin to obtain an acidic silicic acid solution, adjust the pH value of the acidic silica sol to 8.0, then stir at room temperature for 45 minutes, then adjust the pH of the alkaline silica sol to 4.9 to obtain Silica sol, then add ammonia water to the silica sol, then inject it into a mold with glass wool felt fiber reinforcement to carry out standing gel at room temperature, and then age at 120°C to obtain silica wet coagulation gel, drying the silica wet gel to obtain silica aerogel;

[0041] The silicon dioxide is gas-condensed to form a thin film, placed in a vacuum deposition chamber, and then the vacuum deposition chamber is evacuated to 10 - 3 Pa, with a composite target of silver, copper and platinum, argon is introduced into the vacuum deposition chamber until the pressure is 1...

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Abstract

The invention relates to the technical field of low-radiation glass, in particular to a light-weight building energy-saving heat-insulation low-radiation glass and a preparation method thereof. The light-weight building energy-saving heat-insulation low-radiation glass comprises a first glass layer, a second glass layer and a sandwich layer arranged between the first glass layer and the second glass layer, wherein the sandwich layer comprises a gel layer and a clad layer. The silver-plated silicon dioxide gel layer is completely inserted between the upper glass layer and the lower glass layer,and heat insulation glass with the silver-plated silicon dioxide gel layer inserted between the two sheet glass sandwich layers is formed, so that the silver-plated silicon dioxide gel layer is firmly inserted between the two sheet glass sandwich layers, the glass has the characteristics of good infrared reflection function and heat transfer blockage characteristic, the silver layer is enclosed inside the glass, and the attenuation is effectively prevented; and the light-weight building energy-saving heat-insulation low-radiation glass disclosed by the invention has the characteristics of lowradiation, light weight and heat insulation, is applicable for being used in a plurality of fields, and is particularly applicable for being used for building glass curtains.

Description

technical field [0001] The invention relates to the technical field of low-emissivity glass, in particular to an energy-saving, heat-preserving and low-emissivity glass for light buildings and a preparation method thereof. Background technique [0002] New building materials are a new generation of upgraded building materials produced on the basis of traditional building materials, mainly including new wall materials, thermal insulation materials, waterproof sealing materials and decoration materials. With the advent of the low-carbon era, under the background of the country's promotion of energy saving and consumption reduction, transformation and development, green, low-carbon, energy saving and environmental protection have become the unavoidable mission of new building materials. For this reason, new building materials with the goals of green environmental protection, waste utilization, heat insulation, heat preservation, fire prevention, light weight, high strength, rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B17/06B32B9/00B32B9/04B32B7/12C03B19/02C23C14/35C23C14/18
Inventor 陈庆曾军堂
Owner 江西清江建设发展有限公司
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