[China Glass Net] Fireproof glass is a new type of building functional material with good light transmission and fire retardant properties. Fireproof laminated glass can be divided into composite fireproof glass and infusion type fireproof glass according to the production process characteristics. There are many varieties of fireproof glass, the main varieties are as follows:
(1) Sandwich composite fireproof glass (FFB) sandwich composite fireproof glass is a common and highly popular transparent laminated composite fireproof glass at home and abroad. It consists of two or more layers of flat glass sandwiches with a transparent fireproof adhesive. The fire resistance is mainly determined by the performance of the fireproof adhesive. Fireproof adhesives can be generally classified into inorganic materials (sodium silicate or water glass), organic materials (acrylamide and flame retardants, etc.). China's manufacturers of fire-resistant glass widely use inorganic materials as adhesives to make fire-resistant glass. Because of its low cost and abundant source of raw materials, it can be cured at room temperature or below 100 °C. In the case of fire, the fireproof glass will rapidly foam and expand to form a heat-insulating fire-resistant foam layer, which can absorb a large amount of heat. In the event of a fire, it can also bond broken glass sheets to maintain the integrity of the fire-resistant glass without injuring people.
(2) Wire-wound fire-resistant glass It is a composite glass body in which a metal wire or a mesh material is further added to an interlayer of an organic film or an inorganic adhesive in the middle of two layers of glass. When added to the wire or mesh, it not only improves the overall impact strength of the fire-resistant glass, but also can be connected to the electric heating and safety alarm system to play a variety of functions. The only drawback of the fire resistant glass is its poor transparency.
(3) Special fireproof glass Special fireproof glass refers to the glass used as the special component of the glass substrate, rather than the glass of the ordinary flat glass component. It mainly has borosilicate fireproof glass, aluminosilicate fireproof glass, and microcrystalline fireproof glass. The main features of the common are: due to different compositions, the glass has a higher softening point, generally above 900 ° C; the coefficient of thermal expansion is low, and generally does not burst or deform due to high temperature under strong flame; especially microcrystalline fire-resistant glass, In addition to the above characteristics, it also has high mechanical strength, flexural strength, high compressive strength and good chemical stability and physical and mechanical properties.
It also has the advantages of high softening temperature and small coefficient of thermal expansion. They are used as fireproof glass and are all superior.
(4) Hollow fireproof glass hollow fireproof glass is a new product of fireproof glass today. It is a new type of glass that combines sound insulation, noise reduction, heat insulation and fire prevention. It is based on the production of insulating glass. It only needs to coat a glass substrate on a glass substrate that may be exposed to fire or flame. After drying at a certain temperature and humidity, it is processed into hollow glass doors of various shapes. Hollow fireproof glass for windows, partitions, partition walls, fire doors, etc.
(5) Single-piece fireproof glass (DFB) Single-piece fireproof glass (DFB) is a single-layer transparent special glass that has fire-resistant integrity within a certain fire-resisting time and can effectively block the spread of flame and smoke. Because of its light weight, good permeability and high strength, single-piece fireproof glass is widely used in building exterior curtain wall, building exterior window, partition wall, smoke blocking wall, shared space, atrium, lighting roof, furnace front window and so on.
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