Stable foaming agent for shield construction of complex stratum and preparation method and application of stable foaming agent
A technology for stabilizing foaming agents and complex formations, which is applied in the directions of application, chemical instruments and methods, fertilization devices, etc., can solve the problem that the foaming multiple of the foaming agent and the adjustable range of the foaming multiple cannot meet the requirements, and it is difficult to meet the complex formation shield. The problems of construction and the small adjustable range of half-life period can improve the effect of soil improvement, good resistance to hard water and good biodegradation performance.
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Embodiment 1
[0042] Prepare 1000g of environment-friendly, efficient and stable foaming agent for shield tunneling in complicated strata, and the weights of each component are respectively:
[0043] Sodium α-alkenyl sulfonate: 70g
[0044] α-sulfo fatty acid methyl ester: 56g
[0045] Alkyl polyglycosides: 14g
[0046] Cocamidopropyl Betaine: 1g
[0047] Polyethylene oxide: 1g
[0048] Modified silicone polyether emulsion: 1g
[0049] Water: 857g.
[0050] At room temperature, first add sodium α-alkenyl sulfonate to 354g of water and stir. During the stirring process, sequentially add α-sulfo fatty acid methyl ester, alkyl polyglycoside, cocamidopropyl betaine, polyoxygen Ethylene and modified silicone resin polyether emulsion, after stirring evenly, add the remaining water, and stir well to get it.
[0051] The expansion ratio of the prepared foam agent can reach 29-35 times due to the difference in external temperature and water hardness, and the half-life of the foam is 11-16 minu...
Embodiment 2
[0053] Prepare 1000g of environment-friendly, efficient and stable foaming agent for shield tunneling in complicated strata, and the weights of each component are respectively:
[0054] Sodium α-alkenyl sulfonate: 40g
[0055] α-sulfo fatty acid methyl ester: 60g
[0056] Alkyl polyglycosides: 10g
[0057] Cocamidopropyl Betaine: 2g
[0058] Polyethylene oxide: 1g
[0059] Modified silicone resin polyether emulsion: 2g
[0060] Water: 885g.
[0061] At room temperature, first add sodium α-alkenyl sulfonate into the water and stir. During the stirring process, add α-sulfo fatty acid methyl ester, alkyl polyglycoside, cocamidopropyl betaine, polyethylene oxide And modified silicone resin polyether emulsion, after stirring evenly.
[0062] The expansion rate of the prepared foam agent is different due to the difference in external temperature and water hardness, the expansion ratio can reach 18-22 times, and the foam half-life is 18-25 minutes.
Embodiment 3
[0064] Prepare 1000g of environment-friendly, efficient and stable foaming agent for shield tunneling in complicated strata, and the weights of each component are respectively:
[0065] Sodium α-alkenyl sulfonate: 65g
[0066] α-sulfo fatty acid methyl ester: 30g
[0067] Alkyl polyglycosides: 5g
[0068] Cocamidopropyl Betaine: 1g
[0069] Polyethylene oxide: 4g
[0070] Modified silicone polyether emulsion: 5g
[0071] Water: 890g.
[0072] At room temperature, first add sodium α-alkenyl sulfonate into the water and stir. During the stirring process, add α-sulfo fatty acid methyl ester, alkyl polyglycoside, cocamidopropyl betaine, polyethylene oxide And modified silicone resin polyether emulsion, after stirring evenly.
[0073] The expansion rate of the prepared foam agent is different from the external temperature and water hardness, the expansion ratio can reach 27-35 times, and the foam half-life is 20-30 minutes.
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