Stock Office Cheaper Option Fire Extinguisher Powder Used in Classroom

The total specific surface area of quantitative dry powder is small, the mass of single particle is large, the sedimentation rate is fast, and the decomposition rate is slow when heated, resulting in its low ability to capture free radicals, so the fire extinguishing ability is limited, which limits the use range of dry powder fire extinguishing agent to a certain extent. The particle size of dry powder fire extinguishing agent is directly related to its fire extinguishing efficiency. The larger the critical particle size of the fire extinguishing component, the better the fire extinguishing effect. Therefore, it is an effective way to improve the fire extinguishing efficiency of dry powder fire extinguishing agent to prepare ultrafine fire extinguishing powder that can be uniformly dispersed and suspended in the fire space, ensure the activity of fire extinguishing component particles, and reduce the amount of fire extinguishing agent used per unit space.

Ordinary dry powder extinguishing agent is mainly composed of active extinguishing component, hydrophobic component and inert filler. The hydrophobic component mainly includes silicone oil and hydrophobic white carbon black. There are many kinds of inert filler, which mainly play the role of anti vibration compaction, caking, improving the movement performance of dry powder, catalyzing the polymerization of dry powder silicone oil and improving the compatibility with foam extinguishing agent. This kind of common dry powder fire extinguishing agent has been widely used at home and abroad.