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Inorganic fiber type polymer hydrogel fire extinguishing agent and preparation method thereof

A technology of polymer hydrogel and inorganic fiber, applied in the direction of fire prevention equipment, etc., can solve the problems of ineffective coverage, cooling and cooling, increase of production cost of fire extinguishing agent, difficulty of superabsorbent resin, etc., to prevent ignition , Excellent heat insulation performance, increase the effect of adhesion thickness

Active Publication Date: 2020-05-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there are also some disadvantages in the fire extinguishing hydrogel based on polyacrylic superabsorbent resin: when the surface that has caught fire, especially the vertical wall, the surface containing stainless steel (such as the surface of the oil tanker), due to water Vaporization at high temperature, polyacrylic acid-based superabsorbent resin is difficult to adhere to its surface, so it cannot effectively cover, cool and cool down, and the fire extinguishing effect is poor
Patent CN103483752B discloses a method of improving the poor adhesion between polymer fire extinguishing hydrogel and the surface by adding a water-based adhesion promoter of a silane coupling agent, but the silane coupling agent is expensive, which increases the production cost of the fire extinguishing agent

Method used

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  • Inorganic fiber type polymer hydrogel fire extinguishing agent and preparation method thereof
  • Inorganic fiber type polymer hydrogel fire extinguishing agent and preparation method thereof
  • Inorganic fiber type polymer hydrogel fire extinguishing agent and preparation method thereof

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preparation example Construction

[0053] The present invention also provides a method for preparing the inorganic fiber-type polymer hydrogel fire extinguishing agent described in the above technical solution, comprising: mixing a superabsorbent resin, inorganic fibers and water to obtain an inorganic fiber-type polymer hydrogel Extinguishing agent.

[0054] Among them, the types, dosages and sources of the superabsorbent resin, inorganic fibers and water are consistent with those described in the above technical solution, and will not be repeated here.

[0055] In the present invention, the temperature of the mixing is not particularly limited, it only needs to be higher than the freezing point, and can be carried out at normal room temperature, specifically preferably 22-27°C. The mixing time is preferably 1-2 minutes, and if the mixing time is too long, the fire extinguishing efficiency will be affected. The present invention has certain requirements on the mixing sequence. Specifically, the inorganic fibe...

Embodiment 1

[0060] 1.1 Raw materials:

[0061] Polyacrylic superabsorbent resin BASF 90S 0.33wt%;

[0062] Aluminum silicate fiber 0.10wt%;

[0063] water balance.

[0064] 1.2 Preparation:

[0065] Stir and mix the inorganic fiber and water at room temperature, then add super absorbent resin and mix for 1 min to obtain the hydrogel fire extinguishing agent.

Embodiment 2

[0067] 1.1 Raw materials:

[0068] Polyacrylic superabsorbent resin BASF 90S 0.33wt%;

[0069] Glass fiber 0.03wt%;

[0070] water balance.

[0071] 1.2 Preparation:

[0072] Stir and mix the inorganic fiber and water at room temperature, then add super absorbent resin and mix for 2 minutes to obtain the hydrogel fire extinguishing agent.

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Abstract

The invention provides an inorganic fiber type polymer hydrogel fire extinguishing agent and a preparation method thereof. The inorganic fiber type polymer hydrogel fire extinguishing agent provided by the invention comprises the following components in percentage by mass: 0.10-0.40% of super absorbent resin, and 0.01%-0.20% of inorganic fibers, with the balance being water, wherein the super absorbent resin is polyacrylic acid super absorbent resin. According to the invention, the inorganic fibers and the super absorbent resin are combined according to a certain proportion; the lengths of theinorganic fibers are greater than the diameters of the hydrogel particles after water absorption, so that the super absorbent resin particles are fixed in a frame formed by the inorganic fibers, thesliding of the particles is restrained, a three-dimensional network structure is formed, the modulus of the polymer hydrogel is improved, the adhesion thickness of the polymer hydrogel is increased, and the fire extinguishing effect is improved; in addition, the inorganic fibers have excellent heat insulation performance, and can prevent re-combustion and non-combustion objects from being ignited.Meanwhile, the inorganic fibers are wide in source and low in price, and the cost of the fire extinguishing agent can be reduced.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing agents, in particular to an inorganic fiber type polymer hydrogel fire extinguishing agent and a preparation method thereof. Background technique [0002] At present, water is one of the most extensive and common fire extinguishing technologies for fighting fires. It has a large specific heat capacity, strong heat absorption capacity, and has a significant cooling effect on burning substances. A large amount of water vapor generated by vaporization can prevent air from entering the combustion zone, and it is cheap Easy to get, a wide range of sources. However, due to the high temperature of the fire scene, the water has been vaporized before reaching the combustion zone, so that the cooling performance of the water cannot be fully exerted, and the fluidity of the water is large. For large-scale fires and repeated fires, it is often impossible to extinguish them in time and effectively. ...

Claims

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Application Information

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IPC IPC(8): A62D1/00
CPCA62D1/0064
Inventor 许东华杨雪李双双赵志刚付志磊刘芳石彤非李思佳汤华清
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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