| abstract |
The present invention relates to a fire extinguishing system, in particular to a self-supporting automatic fire extinguishing device, and can be used to extinguish a fire at the beginning of a fire. For example, it may be installed and used inside of an electric board, an electric box, an automobile engine compartment, a transformer and a server, and other electric switchboards and power supplies. The self-supporting fire extinguishing device is made of a fire extinguishing material containing microcapsules containing a fire extinguishing compound and a binder. Microcapsules containing fire extinguishing compounds refer to halogenated carbons stored in polymer shells made of polyurea and / or polyurethane based prepolymer Polyisocyanate. These microcapsules are about 2 to 100 microns in size each. The binder contains mineral fibers and / or mineral particles as well as a polymer component as a composite material. Acceptable halogenated carbons are 1,1,2,2-tetrafluordibromethane and / or 1,1,2-triftortrichlorethane and / or 2-iodo-1,1,1,2,3,3,3-heptafluoropropane and / or such Mixtures of materials with other halogenated carbons. |