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 a core part and a surface layer, the core part is an aerogel, and the surface layeris a glass phase. The manufacturing method comprises: (1) preparing a glass melting liquid, wherein glass powder is heated and molten to obtain a glass melting liquid; (2) pre-molding, wherein the glass melting liquid is continuously introduced onto a floating polishing medium; (3) spreading an aerogel, wherein an aerogel is uniformly and continuously spread on the surface of the glass melting liquid obtained in the step (2); (4) preparing an aerogel composite glass, wherein the glass melting liquid is continuously introduced onto the surface of the aerogel obtained on the step (3), and cooling is performed; and (5) annealing. According to the present invention, with the manufacturing method, the resources of the float glass production line are completely utilized, the synchronous online production of the float glass and the aerogel composite glass can be achieved through the online introduction of the aerogel, and 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 roofsof 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 method for manufacturing 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 par...

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

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