Classification, importance, and function of fire-rated glass
2024/04/26
Fireproof glass is a new type of functional material for construction, with good light transmission and fire retardant properties. It is made of two or more layers of glass bonded together with transparent anti-press. Normally it is transparent as ordinary glass, in the fire a few minutes later, the middle membrane that began to expand into a very thick foam-like adiabatic layer, this adiabatic layer can prevent the flame from spreading and heat transfer, the fire is limited to the fire point near the cell city, play a role in fire protection. Good performance of fireproof glass, in the high temperature of more than 10,000 ℃ still have good fire retardant. This transparent fire safety glass can be used as a high-level hotels, theaters, exhibition halls, airports, gymnasiums, hospitals, libraries, commercial buildings and other public buildings, as well as other civil and public buildings without fire partition requirements of fire doors, fire windows and fire partitions and other ranges of ideal fireproofing materials
Now there are mainly the following kinds of fireproof glass.
Laminated composite fireproof glass: it is the common and best-selling transparent laminated composite fireproof glass in domestic and foreign markets. It consists of two or more layers of flat glass interspersed with transparent fireproof adhesive. The strength of its fire resistance depends mainly on the performance of the fireproof adhesive. Fireproof adhesive can generally be divided into inorganic materials (sodium silicate also known as water glass), organic materials (acrylamide and flame retardant) and other two categories of fire glass in case of fire, the adhesive will rapidly foam expansion to form an adiabatic fire-resistant and heat-insulating foam layer that absorbs a large amount of heat laminated glass: it is in the middle of the two layers of glass in the sandwich of organic film or inorganic adhesive and then added to the metal wire, metal mesh and made of composite glass body. Composite glass body. After adding the wire or net, not only can improve the overall impact strength of the fireproof glass, but also can be connected with electric heating and safety alarm system to play a variety of functions.
Special fire-resistant glass: special fire-resistant glass refers to the use of glass substrate for the special composition of the glass, rather than ordinary plate glass composition of the glass. Mainly borosilicate fireproof glass, aluminum quartzate fireproof glass, microcrystalline fireproof glass, etc., its common main feature is: due to the composition of different, glass softening point is higher, generally above 900 ℃, low coefficient of thermal expansion, in a strong flame is generally not due to high temperatures and cracking or deformation, in particular, microcrystalline fireproof glass, in addition to the above characteristics, but also has a high mechanical strength, high bending and compressive strength and good chemical stability and physical and mechanical properties. Stability and physical and mechanical properties.
Hollow fireproof glass: Hollow fireproof glass is a new product of fireproof glass. It integrates the functions of sound insulation and noise reduction, heat insulation and fire protection. On the basis of making hollow glass, it can be processed into different shapes of hollow fireproof glass doors, windows, partitions, partition walls and fire escape routes by drying it at a certain temperature and humidity where it may come into contact with fire or flame.
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