[China Glass Net] composite fireproof glass (or fireproof laminated glass) is made by bonding two or more single-layer flat glass sheets together with an intumescent flame-retardant cement; It is made of two or more pieces of single-layer flat glass, which are sealed with a frame strip, and then filled with fire-proof liquid by the filling port, which is made by cementing and sealing; at room temperature and in the early stage of fire, composite fireproof glass It has the same light transmission performance and decorative performance as ordinary flat glass; after the fire, as the fire spreads, the fire temperature rises, and the composite fireproof glass fireproof interlayer is thermally expanded and foamed to form a thick fireproof heat insulation layer. Fire insulation and fire separation. However, composite fire-resistant glass generally has small bubbles and is not resistant to cold and poor light transmission, which affects the effect of its use.
The thin-coated fire-proof glass is sprayed with a fire-proof transparent liquid on the surface of a single-layer or multi-layer flat glass substrate, and is dried and solidified to form a fireproof glass. When the thin-coated fireproof glass is in a fire, the fireproof protective layer is thermally expanded to form a dense fireproof protective layer, which protects the substrate glass and prevents the spread of fire.
The fireproof wire glass is divided into a brushed glass and a fireproof sandwich glass by structure. Wired glass is a safety glass produced by calendering. When the molten glass is formed between the calender rolls, the preheated wire or metal mesh is pressed into the glass plate to form a wired glass. Fireproof wire sandwich glass is made by placing a metal mesh in a sandwich during the production of composite fire resistant glass. When the wire glass is subjected to external force or rupture in a fire, the glass fragments can still be fixed on the wire or the net without falling off, which can prevent the flame from penetrating and prevent the fire from spreading. The disadvantage of the larger size of the wired glass is that the thermal insulation performance is very poor, and the temperature of the backfire surface is as high as 400 to 500 ° C in the event of a fire for ten minutes. The fireproof sandwiched laminated glass has the advantages of both the wired glass and the fireproof laminated glass, and has certain promotion and application prospects. However, the wire glass produced in China is opaque and does not have the light transmission and decoration effect of the glass, which affects its promotion and application.
The single-piece fireproof glass is treated by physical and chemical methods to modify the surface of the ordinary glass to improve the thermal stress resistance of the glass, so as to ensure that it does not break under flame impact or high temperature, and prevents the flame from penetrating the fireproof glass and Spread the purpose of the fire. Because of the light weight, transparency and decorative properties of single-piece fire-resistant glass, it is used in more and more buildings. However, a single piece of fire-resistant glass does not block the heat radiation of the flame and can only be tested by Class C fire-resistant glass, which must be taken into account when used as a fire barrier.
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