Fire may be the best thief in this world. This statement is not exaggerated, because they are never caught and punished for the destruction of our precious bonds, cash and securities. The best thing to do for someone to save their valuable documents, is to hide them from this thief. Here's an article that talks about the materials used in the creation of these special places to hide.
Polymers are a great blessing for people in this regard. From the reign of the Egyptians early, man has tried to doComposites to withstand the fire. The old composite materials containing combinations such as chalk and clay, plaster and hair, alum and vinegar, ammonium chloride and gypsum, etc. In addition, the concrete is fire resistant and cheap to some extent, at the same time that have spread .
The actual marketing and mass production of these materials began to see the consequences of World War II. They were fire-resistant polyester fabric and coated with antimony oxide and halogenated paraffinbe used.
In general, synthetic polymers, to resist the fire is much harder than conventional polymers filled with additives to resist fire. But the inherently fire resistant polymers involved are of better quality than the filler. The use of polar monomers, high-capacity hydrogen and the presence of many inorganic groups increase the fire resistance of a polymer.
Linear single-stranded polymers with cyclic aromatic compounds are rigid and expensive, but they are one of theTop material to resist fire. Polybenzoxazoles are polybenzimidazole, polyimide polymers which few fall into this category. Some heterocyclic aromatic polymers with monomers, the links it makes them look like ladders and more difficult. Each polymer has many inorganic groups is usually difficult to light.
Now the man is never satisfied with what he has and is always looking for something better than what it is. This only means that we can expect to save even more material to come.
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