At present, China building fire that gradually increase, but domestic know of fireproof glass is also relatively simple, still remain in the monolithic fireproof glass know. Europe will be fire-resistant glass is divided into a single good fireproof glass and composite insulation fireproof glass, composite insulation fireproof glass in fire prevention and other aspects of the function better than monolithic intact fireproof glass.
Monolithic fire-resistant glass is glass fire a single glass structure. In a certain period of time to meet the fire fire readiness, blocking the fire and poisonous and harmful gas, but do not have heat preservation and heat insulation effect.
Fire occurs, the side exposed to fire and fire back face of general glass will suddenly constitute a larger temperature difference, in this temperature effect, the 1, 2 minutes will attack the strong non-uniform thermal stress, resulting in broken glass, even through physical toughening glass, 3, 5 minutes after the will shattered.
Flameproof glass through high temperature ion as long as more than 20 hours of the exchange of chemical process, which has the characteristics of low thermal expansion rate, high temperature glass softening and not broken, to adhere to the integrity, the safety barrier constitutes a obstruct the flame and toxic, harmful gas dispersion, extension.
Now the first mall European single intact commodity leader is the German company Schott.
Composite insulation fireproof glass is composed of multilayer sheets of glass of water soluble inorganic sandwich fireproof glue compound and into, together with refractory integrity, fire insulation requirements.
Fire insulation fireproof glass principle is, when the fire is lit in the center, particular chemical heat insulation composite fireproof glass to absorb a large number of heat in the flame and foaming swell, together with a non transparent white, efficiently prevents heat from the fire burning attack attack facing the back fire surface conduction, radiation heat from the fire surface blocking glass side exposed to fire flame transmission. In this process, the glass all remained intact, constitute a can isolate the flame, smoke and high temperature gas burning attack dispersed with the extension of the useful barrier.
Heat insulation and heat radiation function composite fireproof glass can make fire attack the glass back fire surface area of the escape or rescue personnel from high-temperature heat injury and heat radiation burns, to avoid the area of combustible materials and goods such as wood products, carpet in a certain time has been lit by high temperature the thermal radiation.
This article from: http://www.snll.tw