Do you understand the flame retardant fire seal
2020-09-05
Have you ever known about flame retardant fireproof sealing strip? That is, when a fire occurs, the flame retardant fireproof sealing strip actively expands, blocking the gap between our doors, and isolating the smoke from the door position boundary. So it is also called, fire expansion sealant. Next, let us take a closer look at the expansion of the sealant in case of fire.
What should we do when the fire breaks out? Cover your mouth and nose with a wet towel and bend down to escape. What is all this for? It is to prevent us from inhaling thick smoke, which will cause hypoxia and even death. This is the significance of flame retardant and fireproof sealing strip. It has been expanded, blocked the door crack, isolated the influence of toxic gas and hot water on human body, and controlled the spread of fire. Therefore, we can fix the sealing strip in the groove of the fire door with small nails or stick it with adhesive tape, which can help us in danger when necessary. Is the home and the major public places necessary emergency supplies, is our helper out of danger.
The main raw material of flame retardant fireproof sealing strip is expandable graphite, which is also known as flexible graphite. The expansion sealing strip in case of fire is prepared and bonded by it. Flexible graphite will expand rapidly above 200 degrees Celsius. It is acid-resistant, alkali-resistant, water-resistant, and even cold-resistant, so it is not prone to quality problems and has a long service life.
As we know, the raw materials of flame retardant fireproof sealing strips are expandable graphite. What is the specific ratio? It is made of 18-25 parts of resin powder, 15-24 parts of expanded graphite, 25-33 parts of light calcium carbonate, 12-18 parts of dibutyl phthalate, 1-4 parts of dioctyl phthalate, 3-8 parts of paraffin wax, 1-3 parts of ferrocene, 1-3 parts of ammonium octamolybdate, 2-5 parts of antimony trioxide, 0.2-0.5 parts of zinc stearate, 0.2-0.5 parts of barium stearate, 0.2 of lead tribasic sulfate and -0.6 parts of lead phosphite.
The initial expansion temperature of the expansion sealant strip in case of fire is 199 degrees Celsius, and the expansion temperature of the main body is 347 degrees Celsius. Its linear expansion multiple is greater than or equal to three times of the original expansion thickness. It has the functions of high temperature resistance and incineration, and also has the function of smoke prevention. It can be said that it is very useful and is a good tool necessary for home use.
So do you know the flame retardant fire seal now?
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