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
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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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