The types of laminated fireproof glass are introduced

The types of laminated fireproof glass are introduced

Fireproof glass fireproof glass is a new type of building functional data, which has excellent light transmission function and fireproof and flame retardant function. According to the characteristics of production process, fireproof laminated glass can be divided into composite fireproof glass and pouring fireproof glass. There are many types of fireproof glass, and the main types are as follows:

(1) Laminated composite fireproof glass (FFB)

It is now common in domestic and foreign markets and extremely popular Tongming sandwich composite fireproof glass. The utility model is composed of two or more layers of flat glass with transparent fireproof adhesive sandwiched in the center. The strength of its fire resistance mainly depends on the function of fire-proof adhesive. Fireproof adhesives can generally be divided into two categories: inorganic materials (sodium silicate or also known as water glass) and organic materials (acrylamide and flame retardant, etc.).

Chinese manufacturers of fireproof glass widely use inorganic materials as adhesives to manufacture fireproof glass. Because of its cheap and rich source of raw material capital, it can be cured at room temperature or below l00 ℃. When the fire glass is in fire, the adhesive will be quickly foaming and swell, forming an adiabatic fire-resistant and heat insulation foam layer, which can absorb a lot of heat. If broken in case of fire, the broken glass sheet can be bonded to maintain the integrity of the fireproof glass without hurting people.

(2) Wired fireproof glass

It is a composite glass body made of metal wire and mesh in the interlayer of organic film or inorganic adhesive in the center of two layers of glass. After joining the wire or net, it can not only improve the overall impact strength of the fireproof glass, but also connect with the electric heating and safety alarm system to play a variety of functional effects. The defect of the fireproof glass is poor light transmittance.

(3) Special fireproof glass

It refers to the glass with special composition as the selected glass substrate, rather than the glass with ordinary flat glass composition. It mainly includes borosilicate fireproof glass, aluminosilicate fireproof glass, microcrystalline fireproof glass, etc. The main features are: because of different components, the softening point of glass is high, usually above 900 ℃; The thermal expansion coefficient is large and low, and it will not burst or deform due to high temperature under strong flame; In particular, microcrystalline fireproof glass not only has the above characteristics, but also has high mechanical strength, flexural and compressive strength, excellent chemical stability and physical and mechanical functions. It also has the advantages of high softening temperature, large thermal expansion coefficient and small coefficient. They are used as fireproof glass and are all excellent products.

(4) Hollow fireproof glass

It is a new product of today's fireproof glass. It is a new type of glass integrating sound insulation, noise reduction, heat insulation and fire protection. On the basis of manufacturing hollow glass, it only needs to coat a layer of metal salt on the glass substrate on the side that may touch fire or flame. After drying at a certain temperature and humidity, it can be processed into hollow fire-proof glass for hollow glass doors, windows, partitions, partitions, fire passages, etc. with different shapes.

(5) Single piece fireproof glass (DFB)

It is a single-layer transparent special glass with fire resistance integrity within a certain fire resistance time limit and can effectively isolate the extension of flame and smoke. Because of its lightness, good permeability and high strength, single fireproof glass is now widely used in the construction of external curtain wall, external window, partition wall, smoke retaining vertical wall, shared space, atrium, daylighting roof, furnace front window, etc.

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