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Macromolecular fire retarding and extinguishing gel and preparation method thereof

A polymer, fire-retardant technology, applied in the field of fire-retardant and fire-extinguishing gel and its preparation, can solve the problems of easy agglomeration, agglomeration, difficulty in drying or dehydration, decrease in flame-retardant and fire-extinguishing performance, etc., and achieves the effect of good dispersion.

Active Publication Date: 2017-01-04
HEILONGJIANG PROV FOREST PROTECTION INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the polymer gel itself is a highly water-absorbing substance, it is difficult to dry or dehydrate, and it is easy to agglomerate and agglomerate when rehydrating, and its flame retardant and fire extinguishing performance decreases after rehydration

Method used

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  • Macromolecular fire retarding and extinguishing gel and preparation method thereof

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specific Embodiment approach 1

[0022] Specific embodiment one: the preparation method of polymer fire retardant and fire extinguishing gel of this embodiment is carried out according to the following steps:

[0023] 1. Stir and add sodium hydroxide or sodium carbonate aqueous solution to acrylic acid until the degree of neutralization is 60% to 90%, while controlling the reaction temperature to 35 to 50°C and the mixing time to 15 to 50 minutes to obtain a neutralization solution;

[0024] 2. Add a crosslinking agent, an initiator and an adhesion promoter in sequence to the obtained neutralization solution, and keep stirring for 15 to 50 minutes to obtain a polymerization solution;

[0025] 3. Carry out the polymerization reaction at a temperature of 50-100°C for 1-6 hours to generate a superabsorbent resin;

[0026] 4. Disperse the generated superabsorbent resin in vegetable oil, and stir evenly for 2 to 5 hours to obtain a suspension;

[0027] 5. Add a stabilizer to the suspension to form a uniform polym...

specific Embodiment approach 2

[0030] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the stirring speed in step 4 is 60 r / min. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0031] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the adhesion promoter in step 2 is DN-630, and the amount of the adhesion promoter is 0.03% of the neutralizing solution in step 1. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to macromolecular fire retarding and extinguishing gel and a preparation method thereof. The preparation method of the macromolecular fire retarding and extinguishing gel comprises the following steps: 1, preparing a neutralization solution; 2, adding a crosslinking agent, an initiator and an adhesion promoter; 3, performing polymerization reaction; 4, dispersing generated high-water-absorption resin into plant oil; 5, adding a stabilizing agent into suspension. The gel prepared by the preparation method disclosed by the invention is always in a uniformly dispersed liquid state; during use, the macromolecular fire retarding and extinguishing gel can be directly siphoned into a water tank without stirring and mixing and then directly sprayed without waiting; the gel cannot be blocked and aggregated, is high in dispersivity, is damage-free to spraying equipment, cannot delay a fire extinguishing fighter, and fundamentally overcomes the shortcoming of an existing powdered solid product; furthermore, the macromolecular fire retarding and extinguishing gel can be sprayed for use.

Description

technical field [0001] The invention relates to a fire-stopping and extinguishing gel and a preparation method thereof. Background technique [0002] Polymeric gel is a gel state substance formed after super absorbent polymer (SAP) absorbs water. Superabsorbent resin has a special three-dimensional space network structure, which can absorb water hundreds of times heavier than its own mass in the three-dimensional space grid, and then form a polymer polymer gel. [0003] From a microscopic point of view, the spatial structure of the polymer gel is similar to that of the aqueous film-forming foam AFFF or class A foam, the difference is that the voids of its three-dimensional network structure can be filled with water, and these water-filled " "Blisters" offer a dramatic increase in thermal protection compared to air-filled foam. If the heat of the fire is to reach the surface of the protected layer, it must evaporate each layer of "water bubbles". At this time, the energy of...

Claims

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Application Information

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IPC IPC(8): C08L33/02C08L91/00C08L3/02C08F120/06
CPCC08F120/06C08L33/02C08L2201/02C08L2205/03C08L91/00C08L3/02
Inventor 许志峰蔡建文张念慈蔡志勇靳松邸明伟
Owner HEILONGJIANG PROV FOREST PROTECTION INST
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