Aerogel composite glass preparation method

A technology of composite glass and aerogel, which is applied in the field of preparation of aerogel composite glass, can solve the problems of difficult mixing of aerogel and glass melt, and achieve the effects of eliminating delamination, excellent characteristics and improving utilization rate.

Active Publication Date: 2018-10-09
CHANGSHA XINGNA AEROGEL
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Problems solved by technology

[0006] The solution of the present invention is as follows: (1) Adopt transparent adiabatic airgel technology with

Method used

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  • Aerogel composite glass preparation method

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments according to the descriptions in this document.

[0026] Embodiments of the present invention are as follows, a method for preparing an airgel composite glass, comprising the following steps:

[0027] (1) Mix the glass powder and airgel evenly;

[0028] (2) Lay a layer of mixture on the mold substrate first;

[0029] (3) Use a laser to quickly heat the obtained mixture in a step-by-step scanning manner until the glass powder in it melts and the airgel does not melt;

[0030] (4) Repeat steps (2) and (3) alternately on the previous deposition layer, and cool to obtain ...

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Abstract

The invention provides an aerogel composite glass preparation method, wherein the aerogel composite glass comprises an aerogel and a glass phase adhered to the aerogel. The preparation method comprises: (1) mixing, wherein an aerogel and glass powder are uniformly mixed; (2) spreading the material, wherein a layer of the mixture obtained in the step (1) is spread on a mold base plate; (3) melting,wherein the glass in the mixture obtained in the step (2) is rapidly heated by a laser device in a stepped scanning manner until the glass is molten; (4) alternately performing material spreading andmelting, and solidifying, wherein the step (2) and the step (3) are alternately and repeatedly performed on the previous deposited layer; and (5) annealing. According to the present invention, the prepared aerogel composite glass has advantages of good heat insulation performance, good light transmittance, good safety, good sound insulation and good noise reduction, and is suitable for the doors,the windows, the curtain wall glasses and the daylighting roofs of environmentally friendly buildings, ultra-low energy consumption buildings and near zero energy buildings, and other fields.

Description

technical field [0001] The invention relates to the technical field of glass preparation, in particular to a preparation method of airgel composite glass. Background technique [0002] Airgel is a lightweight nano-solid material that aggregates nanoscale ultrafine particles to form a nanoporous network structure, and fills the network pores with a gaseous dispersion medium. Its porosity is as high as 99.8%, the typical size of pores is 1-40nm, and the specific surface area is 400-1200m 2 / g, while the density can be as low as 3kg / m 3 , the thermal conductivity at room temperature can be as low as 0.010W / (m•K), showing excellent light weight, light transmission, heat insulation, heat preservation, sound insulation, fire resistance, impact resistance, and excellent chemical stability and non-combustibility. It is precisely because of these characteristics that silica airgel materials have broad application potential in thermal, acoustic, optical, microelectronics, and partic...

Claims

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Application Information

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IPC IPC(8): C03C14/00
CPCC03C14/00C03C14/004C03C2214/04C03C2214/30
Inventor 卢梦言卢军卢孟磊张丁日卢斌
Owner CHANGSHA XINGNA AEROGEL
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