Freeze resistant sand fixing agent
A sand-fixing agent and freeze-resistant technology, applied in the field of sand-fixing, can solve the problems of poor freeze-resistance and low sand-fixing efficiency, and achieve quick effect.
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preparation example Construction
[0025] The preparation method of water-absorbing additive is:
[0026] S1. Take β-mannanase and mix it with sterile water according to the mass ratio of 1~3:10~20 to obtain a mixed solution. Take acacia endosperm and add it into the mixed solution according to the mass ratio of 2~5:5~10. Swell at ℃ for 1~3h, press into tablets, then enzymolyze at 70~80℃ for 1~3h, inactivate the enzyme, dry, crush and pass through a 100-mesh sieve, and collect the sieved particles;
[0027] S2. Take the sieved particles and add 0.1% sodium hydroxide solution according to the mass ratio of 1~4:10~20, heat up to 65~70°C and stir and mix for 60~90min, add 1~3% of the sieved particles Potassium persulfate, stirred and mixed for 20~30min to obtain the stirred mixture, in parts by mass, 10~20 parts of the stirred mixture, 10~15 parts of acrylic acid, 4~8 parts of sodium hydroxide solution with a mass fraction of 20%, 30 ~40 parts of attapulgite, stirred and mixed at 40~60°C for 30~40min to obtain th...
Embodiment 1
[0038] Bacillus pasteurianus and Bacillus coerzii: both are dry powder of spores.
[0039] The preparation method of water-absorbing additive is:
[0040] S1. Take β-mannanase and mix it with sterile water at a mass ratio of 1:10 to obtain a mixed solution. Take acacia endosperm and add it to the mixed solution at a mass ratio of 2:5, swell at 50°C for 1 hour, press into tablets, and then swell at 70°C. Enzymolysis at ℃ for 1 hour, inactivating the enzyme, drying, crushing and passing through a 100-mesh sieve, and collecting the sieved particles;
[0041] S2. Take the sieved particles and add 0.1% sodium hydroxide solution according to the mass ratio of 1:10, raise the temperature to 65°C and stir and mix for 60 minutes, add potassium persulfate with 1% mass of sieved particles, and stir and mix for 20 minutes to obtain stirring Mixture, in parts by mass, take 10 parts of stirring mixture, 10 parts of acrylic acid, 4 parts of 20% sodium hydroxide solution, 30 parts of attapul...
Embodiment 2
[0052] Bacillus pasteurianus and Bacillus coerzii: both are dry powder of spores.
[0053] The preparation method of water-absorbing additive is:
[0054] S1. Take β-mannanase and mix it with sterile water at a mass ratio of 3:20 to obtain a mixed solution. Take acacia endosperm and add it to the mixed solution at a mass ratio of 5:10. Swell at 60°C for 3 hours, press into tablets, and then swell at 80°C. Enzymolysis at ℃ for 3 hours, inactivating the enzyme, drying, crushing and passing through a 100-mesh sieve, and collecting the sieved particles;
[0055] S2. Take the sieved particles and add 0.1% sodium hydroxide solution according to the mass ratio of 4:20, heat up to 70°C and stir and mix for 90 minutes, add potassium persulfate with 3% mass of the sieved particles, stir and mix for 30 minutes, and stir Mixture, in parts by mass, take 20 parts of stirring mixture, 15 parts of acrylic acid, 8 parts of sodium hydroxide solution with a mass fraction of 20%, and 40 parts of...
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