Fire extinguishing agent prepared from grapheme and superfine materials
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A technology of ultra-fine materials and graphene, which is applied in the direction of fire prevention equipment, etc., can solve the problems of easy reflammation, high corrosion, poor fire extinguishing performance, etc., and achieve the effect of stable and reliable production process, powerful injection and low resistance
Inactive Publication Date: 2017-02-08
胡泽军
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Problems solved by technology
Dry powder fire extinguishing agent has poor fire extinguishing performance and is prone to reflammation; fluoroprotein foam fire extinguishing agent has a fast fire extinguishing speed, but it is highly corrosive, unfriendly to the environme
Method used
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Embodiment 1
[0018] Stir 8 kg of ethylene glycol, 3 kg of glycerol, and 0.28 kg of modified graphene at room temperature to form a slurry; then add 1 kg of nano-magnesium hydroxide, 0.5 kg of sodium bicarbonate, and 1 kg of diammonium and add 0.2 kg of modified starch under high-speed stirring , polyvinyl alcohol 0.3kg, after stirring for 30 minutes, add fluorocarbon surfactant 0.8kg, hydrocarbon surfactant 3kg, siloxane quaternary ammonium salt 1.3kg, add water 80kg, sodium benzoate 0.1kg, 0.1 kg of formaldehyde was stirred for 30 minutes, and the material was filtered out, that is, the graphene ultrafine material fire extinguishing agent.
Embodiment 2
[0020] Stir 7 kg of ethylene glycol butyl ether, 2 kg of glycerol, and 0.18 kg of modified graphene to form a slurry at room temperature; then add 0.8 kg of nano-magnesium hydroxide and 1 kg of sodium bicarbonate and add 0.3 kg of polyvinyl alcohol under high-speed stirring, and stir After 30 minutes, add 0.6kg of fluorocarbon surfactant, 2kg of hydrocarbon surfactant, 1kg of siloxane quaternary ammonium salt, add 85kg of water, 0.1kg of sodium benzoate after stirring at high speed for 20 minutes, and after stirring for 30 minutes, filter the discharge. That is, graphene ultrafine material fire extinguishing agent.
Embodiment 3
[0022] Stir 8kg of ethylene glycol, 2kg of ethylene glycol butyl ether, 2kg of glycerol, and 0.38kg of modified graphene at room temperature to form a slurry; then add 1kg of nano-magnesium hydroxide and 2.5kg of diammonium and add modified starch under high-speed stirring 0.2kg, after stirring for 30 minutes, add 0.8kg of fluorocarbon surfactant, 3kg of hydrocarbon surfactant, 1.3kg of siloxane quaternary ammonium salt, stir at high speed for 20 minutes, add 78kg of water, 0.1kg of formaldehyde, stir for 30 minutes, filter The output is the graphene ultrafine material fire extinguishing agent.
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Abstract
The invention relates to a fire extinguishing agent prepared from grapheme and superfine materials. The fire extinguishing agent takes water as a carrier, and is prepared from 0.1-8.5 parts of modified grapheme, 0.8-5 parts of additive and surfactant, 8-35 parts of antifreeze agent, 2-15 parts of fire retardant, 1-9 parts of thickener, 0.1-0.5 part of preservative, and 27-88 parts of water. The fire extinguishing agent is pumped or driven with inert gas to be jetted for extinguishing a fire. A large amount of hydrophilic oxygen-containing functional groups are contained on the surface and the edge of the surface of modified grapheme, so that grapheme can be stably dispersed in a water solution, and the hydrophilic oxygen-containing functional groups can enable grapheme to be modified covalently and non-covalently; since grapheme is very large in specific surface area, very high in strength and high in thermal stability, grapheme can be combined with a solution in the fire extinguishing agent to form a superfine and ultra-thin liquid membrane and foam, which cover the fire; and grapheme is a nanomaterial with high lubricating property, and takes the effect of a drag reducer in the fire extinguishing agent. The fire extinguishing agent is high in fire extinguishing efficiency, is harmless to the human body, does not corrode devices, is energy-saving, environmental-friendly and safe.
Description
technical field [0001] The invention relates to the technical field of new materials, in particular to a graphene ultrafine material fire extinguishing agent. [0002] Background technique: [0003] As we all know, with the rapid development of my country's economy, energy issues have become the bottleneck of my country's economic development, so the issue of energy security reserves is also a key issue. Once oil and various energy materials catch fire, it is extremely difficult to control the fire. The fire extinguishing agents currently on the market for fighting oil fires mainly include dry powder fire extinguishing agents, foam fire extinguishing agents, fluoroprotein foam fire extinguishing agents, and fine water mist fire extinguishing agents. Dry powder fire extinguishing agent has poor fire extinguishing performance and is easy to reflame; although fluoroprotein foam fire extinguishing agent has a fast fire extinguishing speed, it is highly corrosive, unfriendly to th...
Claims
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