A kind of preparation method of airgel composite glass

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) melting, wherein the glass powder in the mixture obtained in the step (1) is heated until the glass powder is molten so as to obtain a semi-solid-state mixed glass melting liquid; (3) molding, wherein the mixed glass melting liquid obtained in the step (2) is casted into a mold, and cooling is performed; and (4) 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 zeroenergy 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...

AI Technical Summary

Problems solved by technology

[0006] The solution of the present invention is: (1) Adopt transparent thermal insulation airgel technology with silanol on the surface and hydrophobic inside to solve the problem that airgel and glass melt are difficult to mix

(2) Mold forming process, using the mold to directly form glass of various shapes and structures, such as curved glass, special-shaped glass, etc., which solves the problem that it is difficult to make glass with special and complex shapes in online production, and saves manufacturing costs. , while also improving the utilization of materials

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