A kind of built-in airgel composite glass and its preparation method

Abstract

The invention provides composite glass internally provided with aerogel. The composite glass comprises a glass sealing body and a vacuum air pumping device arranged on the glass sealing body; the glass sealing body is composed of two pieces of glass, a spacing body between the two pieces of glass, and an aerogel supporting body arranged in a glass cavity; and the lower surface of the spacing bodyis connected with the upper surface of one of the two pieces of glass through high-melting-point sealing-in materials, and the upper surface of the spacing body is connected with the lower surface ofthe other piece of glass through lower-temperature sealing-in materials. A preparation method of the composite glass comprises manufacturing of the glass cavity, filling of a supporting body, welded sealing and vacuumizing. The composite glass internally provided the aerogel has the good heat insulation property and the good light transmitting property, and is suitable for the fields of door windows, curtain wall glass, daylighting roofs and the like of environment-friendly buildings, ultra-low energy consumption buildings and near-zero energy consumption buildings.

Description

technical field [0001] The invention relates to the technical field of glass preparation, in particular to a built-in airgel composite glass and a preparation method thereof. Background technique [0002] The glass used for buildings in the prior art is mainly used for sealing, daylighting and heat preservation. However, in winter in cold regions, the thermal insulation effect of glass is not ideal, and in summer in hot summer and cold winter regions or hot summer and warm winter regions, the thermal insulation effect of glass is not ideal. With the rapid development of my country's economy, people's requirements for quality of life are getting higher and higher, and the area of ​​building doors, windows, and glass curtain walls is getting larger and larger, resulting in an increasing proportion of heat exchange through doors, windows, and glass curtain walls in the heat exchange between buildings and the outside. bigger. In order to reduce the heat exchange through glass d...

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Problems solved by technology

In order to realize the sealing of large-gap vacuum glass and utilize the temperature difference between high melting point sealing material and low temperature sealing material, a spacer is placed in the weld in advance, and then high and low melting point sealing materials are placed between the glass and the low temperature sealing material in sequence. Between the spacers, so as to solve the sealing problem of large gap vacuum glass

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