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Preparation method of macromolecule water-absorbent resin fire extinguishing agent

A technology of polymer water absorption and fire extinguishing agent, which is applied in fire prevention equipment and other directions, can solve the problems of insufficient water cooling, difficulty in extinguishing fires, and difficulty in remediation, etc., to solve the problems of long production cycle, shortened production process and reduced The effect of production costs

Inactive Publication Date: 2013-01-16
QINGDAO XINYAODI AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the fire is fierce, the temperature is extremely high, and the water will evaporate immediately when it reaches the fire part, so that the cooling effect of the water cannot be fully exerted, it is easy to re-ignite, and the remedy is difficult. It is difficult to complete the important task of extinguishing the fire efficiently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the polymer water-absorbent resin fire extinguishing agent of the present embodiment comprises the following contents:

[0024] (1) prepare NaOH aqueous solution: be that the NaOH 360g of 93% is dissolved in 650g water by concentration;

[0025] (2) Neutralization reaction: The prepared NaOH aqueous solution was continuously added to 1500 g of acrylic acid with a purity greater than 99.5% for a neutralization reaction, and the reaction time was 20 minutes; then the temperature was lowered to 70° C.;

[0026] (3) graft copolymerization reaction: in the solution after the neutralization reaction, disposablely add 500g bentonite and stir, and the rotating speed is 80r / min, then add 5g ethylene glycol cross-linking agent, then add 4g potassium persulfate initiator, Carry out graft copolymerization reaction, the temperature in the reaction process is controlled at 115 ℃, and the reaction time is 15 minutes;

[0027] (4) coagulation and drying: the ...

Embodiment 2

[0030] The preparation method of the polymer water-absorbent resin fire extinguishing agent of the present embodiment comprises the following contents:

[0031] (1) prepare NaOH aqueous solution: be that the NaOH 360g of 93% is dissolved in 650g water by concentration;

[0032] (2) Neutralization reaction: The prepared NaOH aqueous solution was continuously added to 1500 g of acrylic acid with a purity greater than 99.5% for neutralization reaction, and the reaction time was 28 minutes; then the temperature was lowered to 60° C.;

[0033] (3) graft copolymerization reaction: in the solution after the neutralization reaction, disposablely add 400g bentonite and stir, and the rotating speed is 90r / min, then add 5g ethylene glycol cross-linking agent, then add 4g potassium persulfate initiator, Carry out graft copolymerization reaction, the temperature in the reaction process is controlled at 100 ℃, and the reaction time is 0.5 hour;

[0034] (4) coagulation and drying: the reac...

Embodiment 3

[0037] The preparation method of the polymer water-absorbent resin fire extinguishing agent of the present embodiment comprises the following contents:

[0038] (1) prepare NaOH aqueous solution: be that the NaOH 360g of 93% is dissolved in 650g water by concentration;

[0039] (2) Neutralization reaction: The prepared NaOH aqueous solution is continuously added to 1500 g of acrylic acid with a purity of 99.7%, and the used acrylic acid has a specific gravity of 1.051 g / cm at 20°C 3 , with a boiling point of 141.3°C and a flash point of 54.5°C; carry out a neutralization reaction with a reaction time of 22 minutes; then cool down to 70°C;

[0040] (3) graft copolymerization reaction: in the solution after the neutralization reaction, disposablely add 500g bentonite and stir, and the rotating speed is 110r / min, then add 5g ethylene glycol cross-linking agent, then add 4g potassium persulfate initiator, Carry out graft copolymerization reaction, the temperature in the reaction ...

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Abstract

The invention discloses a preparation method of macromolecule water-absorbent resin fire extinguishing agent. The preparation method comprises the following steps: preparing NaOH aqueous solution; carrying out neutralization reaction with the prepared NaOH aqueous solution and acrylic acid; and carrying out graft copolymerization reaction, and solidifying, drying and crushing to prepare a product of which the water absorbent rate is more than 500g / g. According to the preparation method of macromolecule water-absorbent resin fire extinguishing agent disclosed by the invention, the product is polymerized in one step; baking and drying are not required; the process procedure is shortened; the production period is short; the cost is low; the three wastes cannot be generated during production process; and the product is pollution-free to the environment, safe and environment-friendly. The fire extinguishing agent product prepared according to the method is high in specific heat capacity, large in evaporation heat amount, nonflammable and strong in water storage capacity, so that the product has the advantages of fast fire extinguishing speed, low price, convenient operation and the like.

Description

technical field [0001] The invention relates to a preparation method of a polymer water-absorbing resin fire extinguishing agent. Background technique [0002] As a polymer material with special functions, superabsorbent resin has a history of more than 30 years of development. Due to the unique three-dimensional space network structure of this material, the moisture is firmly bound, and it has the characteristics of high water absorption and strong water retention performance. , good biodegradability, has been widely used in many fields of production and life, especially under high temperature conditions, it still has good water retention performance, so that it has a considerable heat capacity, and can be used as a pharmaceutical carrier, effectively Isolating the flames and preventing the spread and re-ignition of the fire will play an important role in fire fighting. With the continuous improvement of its excellent performance and the improvement of people's understandi...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08F220/06A62D1/00
Inventor 朱彦芳
Owner QINGDAO XINYAODI AGRI TECH CO LTD
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