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 w

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

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

[0024] (1) Preparation of aqueous NaOH solution: dissolve 360 ​​g of NaOH with a concentration of 93% in 650 g of water;

[0025] (2) neutralization reaction: the prepared NaOH aqueous solution is continuously added to 1500g of acrylic acid with a purity greater than 99.5%, and neutralization reaction is carried out, and the reaction time is 20 minutes; then it is cooled to 70 ° C;

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

[0027] (4) coagulat...

Example Embodiment

[0029] Example 2

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

[0031] (1) Preparation of aqueous NaOH solution: dissolve 360 ​​g of NaOH with a concentration of 93% in 650 g of water;

[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%, and the neutralization reaction was carried out, and the reaction time was 28 minutes; then it was cooled to 60 ° C;

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

[0034] (4) ...

Example Embodiment

[0036] Example 3

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

[0038] (1) Preparation of aqueous NaOH solution: dissolve 360 ​​g of NaOH with a concentration of 93% in 650 g of water;

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

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

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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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