CN117511556B - Bi-component soil anti-seepage agent and application thereof - Google Patents
Bi-component soil anti-seepage agent and application thereof Download PDFInfo
- Publication number
- CN117511556B CN117511556B CN202410014747.6A CN202410014747A CN117511556B CN 117511556 B CN117511556 B CN 117511556B CN 202410014747 A CN202410014747 A CN 202410014747A CN 117511556 B CN117511556 B CN 117511556B
- Authority
- CN
- China
- Prior art keywords
- component
- soil
- water
- seepage
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002689 soil Substances 0.000 title claims abstract description 179
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000002250 absorbent Substances 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 229920001592 potato starch Polymers 0.000 claims abstract description 9
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 6
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims abstract description 4
- 239000002861 polymer material Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 56
- 238000002156 mixing Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 12
- 239000002344 surface layer Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 40
- 230000000694 effects Effects 0.000 abstract description 20
- 230000002265 prevention Effects 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 14
- 238000002360 preparation method Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000002121 nanofiber Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000002262 irrigation Effects 0.000 description 4
- 238000003973 irrigation Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 238000010041 electrostatic spinning Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005614 potassium polyacrylate Polymers 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- RHQDFWAXVIIEBN-UHFFFAOYSA-N Trifluoroethanol Chemical compound OCC(F)(F)F RHQDFWAXVIIEBN-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002364 soil amendment Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The application discloses a bi-component soil anti-seepage agent and application thereof, belonging to the technical field of soil water retention and seepage prevention, wherein the bi-component soil anti-seepage agent consists of a component A and a component B; the component A comprises water-absorbing nano short fiber powder and calcium-containing mineral powder; the component B comprises water-soluble silicate and water-absorbent resin; the water-absorbing nano short fiber powder is obtained by mutually compacting and gathering a plurality of nano short fibers and a high polymer material containing hydrophilic carboxymethyl groups; the water-absorbent resin is obtained by graft copolymerization of alkali gelatinized potato starch and acrylic acid or sodium salt thereof. The bi-component soil anti-seepage agent provided by the application has the advantages of low raw material and construction cost, simple construction, anti-seepage and water-retaining effects, longer duration, capability of keeping a stable value when the water quantity is too high in a short time, and capability of slowly discharging excessive water.
Description
Technical Field
The application relates to a bi-component soil anti-seepage agent and application thereof, belonging to the technical field of soil water retention and seepage prevention.
Background
The water storage and water holding capacity of the soil is an important index in agricultural planting, particularly the physical and chemical properties and fertility of the soil are affected by the soil moisture, the drought resistance of the soil can be improved by improving the water holding capacity of the soil, and the agricultural yield and income are promoted. The existing seepage prevention technology mainly comprises the following steps: (1) Traditional anti-seepage measures, such as thickening soil layers, soil compaction, organic fertilizer application and the like, can improve the water retention capacity of soil, but have limited water retention and seepage resistance effects; (2) The chemical agents are used for soil treatment, such as soil mixing water retention agents, soil amendments and the like, so that soil moisture is maintained, but ecological influence on the soil can be generated for a long time, including salinization and the like; (3) The film seepage-proofing technology, such as resin films of ethylene, high-density polyethylene, polyvinyl chloride and the like, has good water retention and seepage resistance, is easy to damage and repair, has high cost, can lead to the soil to be airtight, and particularly can lead to waterlogging easily when a large amount of rainfall occurs. In the prior art, no soil seepage-proofing product which has seepage-proofing function, low cost and is not easy to waterlog when rainfall occurs in a large amount exists.
Disclosure of Invention
In order to solve the problems of seepage prevention effect, low cost and difficult compatibility of anti-waterlogging existing in the soil seepage prevention technology in the prior art, according to one aspect of the application, a bi-component soil seepage prevention agent is provided.
The application adopts the following technical scheme:
the dual-component soil anti-seepage agent consists of a component A and a component B;
the component A comprises water-absorbing nano short fiber powder and calcium-containing mineral powder;
The component B comprises water-soluble silicate and water-absorbent resin;
The water-absorbing nano short fiber powder is obtained by mutually compacting and gathering a plurality of nano short fibers and a high polymer material containing hydrophilic carboxymethyl groups;
the water-absorbent resin is obtained by graft copolymerization of alkali gelatinized potato starch and acrylic acid or sodium salt thereof.
Optionally, in the bi-component soil anti-seepage agent, the proportion of each component is as follows:
3-8 parts by weight of water-absorbing nano short fiber powder, 15-20 parts by weight of calcium-containing mineral powder, 15-25 parts by weight of silicate and 25-35 parts by weight of water-absorbing resin.
The water-absorbing nano short fiber powder has super-strong water-absorbing expansion effect.
Optionally, the median diameter D50 of the water-absorbing nano short fiber powder is 1-2 mm.
Optionally, the calcium-containing mineral powder is at least one of lime and gypsum.
Optionally, the water-soluble silicate is at least one selected from water glass and methyl silicate.
Optionally, the median diameter D50 of the water-absorbent resin is 0.05-0.5 mm.
In the application, the expansion volume of the absorbable expansion type nano short fiber powdery material can be more than 10 times of the volume of the material, and the saturated water absorption rate is 1500% -5000%.
According to another aspect of the application, there is provided an application of the above-mentioned two-component soil anti-seepage agent in soil anti-seepage and water retention, comprising the steps of:
S1, stripping the soil to be constructed from the surface layer of 5 to 30cm of soil to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A to obtain the soil containing the component A;
S3, uniformly spraying the component B on a construction working surface to form a component B layer, then backfilling the soil containing the component A obtained in the step S2 on the component B layer, backfilling all the soil which is not mixed with the component A in the step S2 to cover the soil containing the component A, and compacting the soil.
Optionally, in the step S3, the backfill thickness of the soil containing the component A is 2-5 cm.
Optionally, the total dosage of the two-component soil anti-seepage agent is 5-25 kg/m 2.
Optionally, a water-retaining layer formed by the component A uniformly mixed with the soil;
An anti-permeation layer formed by the component B;
in the soil, the water retention layer is positioned at one side of the seepage-proofing layer far away from the deep soil;
And forming a soil self-adaptive seepage-proofing structure by the functions of the water-retaining layer and the seepage-proofing layer.
In the present application, the meaning of the particle size distribution index "median particle size D50" (abbreviated as D50) is: the particle size corresponding to a cumulative particle size distribution percentage of one sample reaching 50%. Its physical meaning is that the particle size is greater than 50% of its particle size and less than 50% of its particle size is also measured by a laser particle sizer.
The application has the beneficial effects that:
The bi-component soil anti-seepage agent provided by the application fully utilizes the characteristic complementation and synergistic effect among the components, utilizes the good strong water absorption performance and high-expansion effect of the absorbable and expandable nano short fiber powder and calcium-containing mineral powder composition during irrigation or raining to form a water-retaining layer to play a role in absorbing and retaining water in a large amount and primary anti-seepage effect on soil, and utilizes the characteristic of jelly shape after absorbing water of the water-absorbent resin composition obtained by graft copolymerization of water-soluble silicate arranged below the water-retaining layer and alkali gelatinized potato starch, acrylic acid and sodium salt thereof to form a relatively closed anti-seepage layer, thereby realizing good anti-seepage effect and assisting the water-retaining layer to improve the water storage function. The bi-component soil anti-seepage agent provided by the application has the advantages of low raw material and construction cost, simple construction, anti-seepage and water-retaining effects, longer duration, capability of keeping a stable value when the water quantity is too high in a short time, and capability of slowly discharging excessive water.
Drawings
FIG. 1 is a schematic view of an adaptive impermeable structure formed in soil in example 1 of the present application.
Fig. 2 is a schematic view of a mixed layer structure formed in soil in comparative example 1 of the present application.
FIG. 3 is a schematic view showing the structure of a mixed layer formed in soil in comparative example 2 of the present application.
The attached drawings are identified:
1. surface soil; 2. soil containing component a; 3. a component B layer; 4. deep soil; 5. the component A and the component B are tightly overlapped and layered; 6. soil containing component a and component B.
Detailed Description
The present application is described in detail below with reference to examples, but the present application is not limited to these examples.
Unless otherwise indicated, the materials and soil moisture content testers in the examples of the present application were purchased commercially.
If no special description exists, the conventional method is adopted in the test method, the soil moisture content tester is set up according to the recommended setting of manufacturers, and the test soil is representative of northern cultivated lands, and the eastern plain Liaoning province Dalian city common black cultivated lands.
The analysis method in the embodiment of the application is as follows:
And (5) analyzing the water content of the soil by using a soil water content tester, and taking the weight percentage content.
In the embodiment of the application, the soil water content is calculated as follows:
Soil moisture = moisture weight/baked soil weight x 100%
The particle diameter distribution index D50 is measured by a laser particle size analyzer.
In the application, the water-absorbing fiber powder is prepared by adopting a preparation method of a fiber powder material in a patent with a publication number of CN 113117132A.
In the application, the water-absorbent resin is prepared by adopting a preparation method of the super absorbent resin in the patent with the publication number of CN 101935378A.
Preparation example 1 preparation of two-component soil anti-seepage agent
According to one embodiment of the application, a two-component soil anti-seepage agent is provided, and the preparation process is as follows:
according to the weight ratio of 1: uniformly mixing the water-absorbing nano short fiber powder with lime powder to obtain 50kg of component A;
The weight ratio is 2:3, uniformly mixing water glass and water-absorbent resin to obtain 50kg of component B;
In this embodiment, the specific preparation method of the water-absorbing nano short fiber powder is as follows:
(1) 30kg of gelatin is dissolved in 500L of trifluoroethanol, and stirred and dissolved to obtain uniform polymer solution, namely spinning solution. And placing the polymer solution in a feeder, adjusting the speed of an injection pump to 5mL/h, the number of spray heads to 400, adjusting the voltage of a high-voltage generator to 25kV, adjusting the receiving distance of a receiving device to 12cm, setting the relative humidity of a spinning environment to 40%, and setting the environment temperature to 30 ℃ to perform electrostatic spinning. The nanofiber material which is formed by interweaving fiber yarns and has a porous structure is prepared by a high-voltage electrostatic spinning technology.
(2) Adding 225L of ethanol solution and then 25L of aqueous solution into a 500L container, stirring and uniformly mixing, weighing 3.57kg of carbodiimide and 1.43kg of N-hydroxysuccinimide, dissolving in the aqueous solution at normal temperature, adding 10kg of nanofiber material, carrying out modified crosslinking at 25 ℃, and treating for 12 hours; then preparing 70% ethanol aqueous solution, pre-cooling at a low temperature of 4 ℃ for a period of time, transferring the nanofiber material after modification treatment into the low-temperature ethanol aqueous solution for eluting, after treatment for 1h, transferring the material into 95% low-temperature ethanol aqueous solution again, after treatment for 1h, transferring into 70% low-temperature ethanol aqueous solution again, removing the modifier by a concentration gradient method, and repeating for 3 times; the washed nanofiber material was placed in a container, pre-cooled at-80 ℃ for 3 hours, then dried at-40 ℃ for 3 hours, and then dried at 20 ℃ for 24 hours.
(3) And (3) shearing and crushing the dried nanofiber material to obtain uniform long strips, wherein the length of the sample is 20mm, and the width of the sample is about 10 mm. Then adding the strip sample into an ultra-high speed shearing machine for medium and low speed pretreatment, and shearing the strip sample for 15min at a rotating speed of 10000rpm to obtain finer pre-sheared objects; and then setting the rotating speed to 12000rpm for high-speed shearing treatment for 30min to obtain fluffy nanofiber clusters with the diameters of about 1mm to 5mm. Wherein the shearing process is performed in an inflated state.
(4) Weighing 8kg of the sheared fluffy nanofiber clusters, performing liquid nitrogen cooling pretreatment for 1h, adding the fluffy nanofiber clusters and 5kg of carboxymethyl starch material into a powder mixer device, and performing mixing operation for 20min. And grinding the uniformly mixed materials (the rotating speed is set to 400rpm, the grinding time is set to 60 min), and collecting the ground materials to obtain the absorbable expansion type nanometer short fiber powder.
In this embodiment, the water-absorbent resin is obtained by graft copolymerization of alkali gelatinized potato starch, acrylic acid and sodium salt thereof, and the specific preparation method comprises:
Preparing 25L of 25% sodium hydroxide aqueous solution by mass fraction, and neutralizing 30kg (28.6L) of acrylic acid with polymerization inhibitor removed under the conditions of ice water bath cooling and stirring to prepare acrylic acid with the neutralization degree of 30% and sodium salt solution thereof; preparing 10L of sodium hydroxide solution with the hydroxyl molar concentration of 0.675mol/L, weighing 5kg of potato starch, mixing with 15L of deionized water, stirring for 0.5h, and pasting potato starch milk with the sodium hydroxide solution with the hydroxyl molar concentration of 0.675mol/L at the dropping speed of about 0.35L/s; mixing the prepared alkali gelatinized potato starch with acrylic acid and sodium salt solution thereof, adding 0.07kg of potassium persulfate and 10L of N, N' -methylene bisacrylamide solution with the concentration of 1kg/L, and stirring at room temperature for 0.5h to uniformly mix the mixture; heating under the protection of nitrogen gas to gradually raise the temperature, so that the alkali gelatinized potato starch, the acrylic acid and sodium salt thereof undergo graft copolymerization reaction, preserving heat for 2 hours, taking out, drying and crushing to obtain the super absorbent resin.
Preparation example 2 preparation of component A1 (without adding Water-absorbent fiber powder)
The procedure was as in example 1, except that the water-absorbent nano-staple fiber powder was not contained in component A, i.e., that component A1 was 50kg of calcium-containing mineral powder.
Preparation example 3 preparation of component B1 (without adding Water-absorbent resin)
The configuration was the same as in example 1 except that the water-absorbent resin was not contained in component B, but a conventional potassium polyacrylate was used, i.e., component B was used in a weight ratio of 2: and 3, uniformly mixing the water-soluble silicate and the potassium polyacrylate to obtain 50kg of mixture.
Example 1
Component A and component B in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the construction soil area is 10m 2, the total dosage of the double-component soil anti-seepage agent is 10kg/m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A to obtain the soil containing the component A;
S3, uniformly spraying the component B on a construction working surface to form a component B layer, then backfilling the soil containing the component A obtained in the step S2 with the component B layer (backfilling thickness is 3 cm), and then fully backfilling the soil which is not mixed with the component A in the step S2 to cover the soil containing the component A, and compacting the soil. The soil was designated as # 1. The self-adaptive seepage-proofing structure formed by the two-component soil seepage-proofing agent in the soil is shown in figure 1.
Comparative example 1 (component A and component B do not form a soil-adaptive barrier structure)
Component A and component B in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the construction soil area is 10m 2, the total dosage of the double-component soil anti-seepage agent is 10kg/m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, mixing the component A and the component B and uniformly spraying the mixture on a construction working surface to form a component mixing layer, and then backfilling the soil stripped in the step S1 to cover the soil containing the component A and compacting the soil. The soil was designated as # 2. The structure of the mixed layer formed by the soil anti-seepage agent in the soil is shown in figure 2.
Comparative example 2 (component A and component B do not form a soil-adaptive barrier structure)
Component A and component B in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the construction soil area is 10m 2, the total dosage of the double-component soil anti-seepage agent is 10kg/m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing the soil with the component A and the component B to obtain the soil containing the component A and the component B;
s3, backfilling the soil containing the component A and the component B obtained in the step S2 to form a component mixed layer (backfill thickness is 3 cm), and then fully backfilling the soil stripped in the step S1 to cover the soil containing the component A, and rolling and compacting the soil. The soil was designated as # 3. The structure of the mixed layer formed by the soil anti-seepage agent in the soil is shown in figure 3.
Comparative example 3
Component A1 and component B in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the construction soil area is 10m 2, the total dosage of the double-component soil anti-seepage agent is 10kg/m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A1 to obtain the soil containing the component A1;
S3, uniformly spraying the component B on a working surface to be constructed to form a component B layer, then backfilling the soil containing the component A1 obtained in the step S2 to cover the component B layer (backfilling thickness is 3 cm), and then backfilling all the soil which is not mixed with the component A1 in the step S2 to cover the soil containing the component A1, and compacting the soil. The soil was designated # 4.
Comparative example 4
Component A and component B1 in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the construction soil area is 10m 2, the total dosage of the double-component soil anti-seepage agent is 10kg/m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A to obtain the soil containing the component A;
S3, uniformly spraying the component B1 on a working surface to be constructed to form a component B1 layer, then backfilling the soil containing the component A obtained in the step S2 with the component B1 layer (backfilling thickness is 3 cm), and then backfilling all the soil which is not mixed with the component A in the step S2 to cover the soil containing the component A, and compacting the soil. The soil was designated as # 5.
Comparative example 5
Component A1 and component B1 in example 1 were combined in a weight ratio of 1:1, carrying out throwing construction on a double-component soil anti-seepage agent sample, wherein the total dosage of the double-component soil anti-seepage agent is 10m 2, and the steps are as follows:
S1, stripping the soil to be constructed from the surface layer by 10cm to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A1 to obtain the soil containing the component A1;
s3, uniformly spraying the component B1 on a working surface to be constructed to form a component B1 layer, then backfilling the soil containing the component A1 obtained in the step S2 with the component B1 layer (backfilling thickness is 3 cm), backfilling all the soil which is not mixed with the component A1 in the step S2 to cover the soil containing the component A1, and compacting the soil. The soil was designated as # 6.
Test example 1
After 1 week after construction of example 1 and comparative examples 1 and 2, the soil #1 to #3 was subjected to an anti-seepage effect test, the control land was not subjected to anti-seepage treatment, and the data result of the average water content of the surface soil is shown in table 1:
TABLE 1 average moisture content of surface soil
From the comparison test, the water retention effect of the example 1 is better than that of the comparative examples 1 and 2, because the example 1 forms a soil self-adaptive seepage-proofing structure shown in fig. 1, the water retention layer formed by the component A uniformly mixed with the soil is positioned above the seepage-proofing layer formed by the component B, and water is preferentially absorbed by the water retention layer in a large amount by utilizing the characteristic of strong water absorption of the component A during irrigation, and a small amount of water passes through the water retention layer to contact with the component B to form a seepage-proofing layer of jelly-shaped gel, so that the water penetration is further prevented; in contrast, in comparative examples 1 and 2, the component a and the component B are not separated to form a soil self-adaptive impermeable structure, but are directly mixed to form a mixed layer, as shown in fig. 2 and 3, respectively, so that the jelly-like gel formed by the water absorption of the component B can lead the mixed material to form a compact structure during the water absorption, and the sufficient absorption of the component a to the water is affected.
Test example 2
After 1 week after construction of example 1 and comparative examples 1 and 2, the soil #1 to #3 was subjected to an anti-seepage effect test, and the conditions of concentrated continuous rainfall or concentrated heavy rain were simulated by a large amount of irrigation, and a plastic film anti-seepage layer (the same as the prior art effect of a water-impermeable layer such as cement) was laid 10cm below the soil surface layer in comparison with the soil, and the data result of the average water content of the surface soil is shown in table 2:
TABLE 2 average moisture content of surface soil
The comparison test can obviously show that the water content of the example 1 is lower than that of the comparative examples 2 and 3 and the comparative land (the plastic film impermeable layer) under the condition of concentrated continuous rainfall or concentrated heavy rainfall in a large amount of irrigation simulation, excessive water cannot be repelled by the comparative example 1 and the comparative land for 24 hours, the water content of the comparative example 1 is not reduced below 30% waterlogging safety line (the water content of the soil is generally 15% -20% in a more ideal state, and the soil belongs to dry soil, and the water content of the soil is higher than 30% and the yield of crops which are not resistant to waterlogging is reduced). And when excessive water enters the soil, the soil of the comparative example 1 can discharge the excessive water within 24 hours, so that waterlogging is more easily avoided, and enough water still reserved for 48 hours is provided for crops to grow, thereby playing an important role in avoiding waste of running water for fertilizer in water. The reason is that, in the embodiment 1, the soil self-adaptive seepage-proofing structure shown in fig. 1 is formed, the water-retaining layer formed by the component a uniformly mixed with the soil is positioned above the seepage-proofing layer formed by the component B, when the soil enters excessive moisture, the component a fully saturates and absorbs certain moisture, and the excessive residual moisture is in the soil due to the high osmotic pressure, so that a large amount of moisture passes through the seepage-proofing layer of the component B to be continuously absorbed into deep soil so as to avoid waterlogging; in contrast, in comparative examples 1 and 2, the component a and the component B are not separated to form the soil self-adaptive impermeable structure but are directly mixed to form the mixed layer, and the excessive water is absorbed and then the component B and the component a are mixed to absorb water to expand, so that the compact structure formed by the mixed layer can bear larger osmotic pressure than the impermeable layer of the jelly-like gel formed by the component B alone, namely, the mixed layer is more difficult to penetrate by excessive water holes in the soil, thus the impermeable effect similar to that of the impermeable layer of the plastic film is easy to be achieved, and waterlogging is easy to occur.
Test example 3
After 1 week after construction of example 1 and comparative examples 3 to 5, the soil #1, #4 to #6 was subjected to an anti-seepage effect test, the control land was not subjected to anti-seepage treatment, and the data result of the average water content of the surface soil is shown in table 1:
TABLE 1 average moisture content of surface soil
The comparison test shows that the water retention effect of the impermeable layer of the embodiment 1 is better than that of the comparative examples 3-5, and the self-adaptive impermeable structure formed by the water retention layer formed by the component A and the impermeable layer formed by the component B has good water retention and impermeable effects compared with the case that the components contain the components A1 and B1. The test was repeated after 30 days, and still had an obvious barrier effect.
In conclusion, the soil self-adaptive seepage-proofing structure formed by component raw material selection and construction based on the embodiment 1 has good water retention and seepage-proofing effects, and simultaneously has the waterlogging-proofing effect when the condition of continuous rainfall or concentrated rainstorm is met, so that the soil self-adaptive seepage-proofing structure has the self-adaptive seepage-proofing effect according to the water quantity entering the soil to a certain extent, and is simple in construction and low in cost.
While the application has been described in terms of preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the application, and it is intended that the application is not limited to the specific embodiments disclosed.
Claims (5)
1. The application of the double-component soil anti-seepage agent in soil anti-seepage and water retention is characterized in that the double-component soil anti-seepage agent consists of a component A and a component B;
The component A consists of water-absorbing nano short fiber powder and calcium-containing mineral powder;
the component B consists of water-soluble silicate and water-absorbent resin;
The water-absorbing nano short fiber powder is obtained by mutually compacting and gathering a plurality of nano short fibers and a high polymer material containing hydrophilic carboxymethyl groups;
the water-absorbent resin is obtained by graft copolymerization of alkali gelatinized potato starch and acrylic acid or sodium salt thereof;
in the bi-component soil anti-seepage agent, the proportion of each component is as follows:
3-8 parts by weight of water-absorbing nano short fiber powder, 15-20 parts by weight of calcium-containing mineral powder, 15-25 parts by weight of silicate and 25-35 parts by weight of water-absorbing resin;
the method comprises the following steps:
S1, stripping the soil to be constructed from the surface layer of 5 to 30cm of soil to expose a construction working surface;
s2, taking part of the soil stripped in the step S1, and uniformly mixing with the component A to obtain the soil containing the component A;
S3, uniformly spraying the component B on a construction working surface to form a component B layer, then backfilling the soil containing the component A obtained in the step S2 with the component B layer, backfilling all the soil which is not mixed with the component A in the step S2 to cover the soil containing the component A, and compacting the soil;
in the step S3, the backfill thickness of the soil containing the component A is 2-5 cm;
The total dosage of the bi-component soil anti-seepage agent is 5-25 kg/m 2;
A water-retaining layer formed by the component A uniformly mixed with the soil;
An anti-permeation layer formed by the component B;
in the soil, the water retention layer is positioned at one side of the seepage-proofing layer far away from the deep soil;
And forming a soil self-adaptive seepage-proofing structure by the functions of the water-retaining layer and the seepage-proofing layer.
2. The use according to claim 1, characterized in that the water-absorbing nanofibrous powder has a median particle diameter D50 of 1 to 2mm.
3. The use according to claim 1, wherein the calcium-containing mineral powder is at least one of lime and gypsum.
4. The use according to claim 1, wherein the water-soluble silicate is selected from at least one of water glass, methyl silicate.
5. The use according to claim 1, wherein the water-absorbent resin has a median particle diameter D50 of 0.05 to 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410014747.6A CN117511556B (en) | 2024-01-05 | 2024-01-05 | Bi-component soil anti-seepage agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410014747.6A CN117511556B (en) | 2024-01-05 | 2024-01-05 | Bi-component soil anti-seepage agent and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117511556A CN117511556A (en) | 2024-02-06 |
| CN117511556B true CN117511556B (en) | 2024-05-14 |
Family
ID=89764936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410014747.6A Active CN117511556B (en) | 2024-01-05 | 2024-01-05 | Bi-component soil anti-seepage agent and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117511556B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451355A (en) * | 2008-12-03 | 2009-06-10 | 中国矿业大学 | Water retention method of back fill course |
| CN101935378A (en) * | 2010-10-09 | 2011-01-05 | 内蒙古大学 | Method for synthesizing super absorbent resin by grafting alkali gelatinization potato starch with acrylic acid and sodium salt thereof |
| CN106929025A (en) * | 2017-01-19 | 2017-07-07 | 化工部长沙设计研究院 | A kind of soil anti-penetrating agent and its construction method |
| CN109575493A (en) * | 2018-10-29 | 2019-04-05 | 赵顺全 | A kind of preparation method of water-loss reducer of soil |
| CN110607177A (en) * | 2019-10-24 | 2019-12-24 | 成都新柯力化工科技有限公司 | Soil water-retaining agent for saline-alkali soil and preparation method thereof |
| CN110683823A (en) * | 2019-11-21 | 2020-01-14 | 中蓝长化工程科技有限公司 | Salt lake salt pan anti-seepage agent and preparation and construction method thereof |
| KR102058546B1 (en) * | 2019-07-05 | 2020-01-23 | 박성수 | Penetrative silicate waterproof agents with hydrophilic fiber reinforcement having antibacterial activities and waterproofing methods using the same |
| CN111038057A (en) * | 2019-12-31 | 2020-04-21 | 潍坊友容实业有限公司 | Multilayer composite geomembrane for saline-alkali soil remediation and preparation method thereof |
| CN113117132A (en) * | 2019-12-31 | 2021-07-16 | 广州迈普再生医学科技股份有限公司 | Absorbable expansion type nano short fiber powdery material and preparation method and application thereof |
| EP4026883A1 (en) * | 2021-01-06 | 2022-07-13 | ESCUBE, s.r.o. | Liquid soil amendment |
| CN116590025A (en) * | 2023-07-18 | 2023-08-15 | 北京助天科技集团有限公司 | Soil anti-seepage agent, application thereof and self-adaptive anti-seepage structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2720092C (en) * | 2008-03-31 | 2017-08-01 | Rhodia Operations | Self-situating stimuli-responsive polymer compositions in soil additives and methods for use |
-
2024
- 2024-01-05 CN CN202410014747.6A patent/CN117511556B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451355A (en) * | 2008-12-03 | 2009-06-10 | 中国矿业大学 | Water retention method of back fill course |
| CN101935378A (en) * | 2010-10-09 | 2011-01-05 | 内蒙古大学 | Method for synthesizing super absorbent resin by grafting alkali gelatinization potato starch with acrylic acid and sodium salt thereof |
| CN106929025A (en) * | 2017-01-19 | 2017-07-07 | 化工部长沙设计研究院 | A kind of soil anti-penetrating agent and its construction method |
| CN109575493A (en) * | 2018-10-29 | 2019-04-05 | 赵顺全 | A kind of preparation method of water-loss reducer of soil |
| KR102058546B1 (en) * | 2019-07-05 | 2020-01-23 | 박성수 | Penetrative silicate waterproof agents with hydrophilic fiber reinforcement having antibacterial activities and waterproofing methods using the same |
| CN110607177A (en) * | 2019-10-24 | 2019-12-24 | 成都新柯力化工科技有限公司 | Soil water-retaining agent for saline-alkali soil and preparation method thereof |
| CN110683823A (en) * | 2019-11-21 | 2020-01-14 | 中蓝长化工程科技有限公司 | Salt lake salt pan anti-seepage agent and preparation and construction method thereof |
| CN111038057A (en) * | 2019-12-31 | 2020-04-21 | 潍坊友容实业有限公司 | Multilayer composite geomembrane for saline-alkali soil remediation and preparation method thereof |
| CN113117132A (en) * | 2019-12-31 | 2021-07-16 | 广州迈普再生医学科技股份有限公司 | Absorbable expansion type nano short fiber powdery material and preparation method and application thereof |
| EP4026883A1 (en) * | 2021-01-06 | 2022-07-13 | ESCUBE, s.r.o. | Liquid soil amendment |
| CN116590025A (en) * | 2023-07-18 | 2023-08-15 | 北京助天科技集团有限公司 | Soil anti-seepage agent, application thereof and self-adaptive anti-seepage structure |
Non-Patent Citations (1)
| Title |
|---|
| 吸水树脂用作土壤持水保墒剂的试验研究;林健;牟国栋;杨雪;;水土保持通报;20100815(第04期);171-174 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117511556A (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zohuriaan-Mehr et al. | Advances in non-hygienic applications of superabsorbent hydrogel materials | |
| EP1879932B1 (en) | Water-swellable hybrid material with inorganic additives and process for its preparation | |
| EP2307333B1 (en) | Composite material composed of polymer materials and a porous mineral matrix and the production thereof and use | |
| US5456733A (en) | Pelletized mulch composition and process for preparing same | |
| CN107710945B (en) | Sand dune slope greening device and sand dune slope greening method | |
| Lohmousavi et al. | Synthesis and characterization of a novel controlled release nitrogen-phosphorus fertilizer hybrid nanocomposite based on banana peel cellulose and layered double hydroxides nanosheets | |
| CN101638461B (en) | Method for synthesizing super absorbent resin containing phosphorus and nitrogen by graft copolymerization reaction of potato starch organic phosphate | |
| DE102009034137A1 (en) | Liquids storing and expandable composite material and its production and application | |
| CN111471464B (en) | Soil conditioner for desert gobi area and application method thereof | |
| JP2010523092A (en) | Apparatus and method for injecting soil conditioner | |
| CN117511556B (en) | Bi-component soil anti-seepage agent and application thereof | |
| Liu et al. | Semi-coke-enhanced eco-friendly superabsorbent composites for agricultural application | |
| JP2974215B2 (en) | Soil conditioner and soil conditioner method | |
| JPH0624453B2 (en) | Soil water retention agent and water retention method | |
| JP2022509606A (en) | Polymer composition for use as a soil conditioner with improved water absorption in crop water | |
| JP2012080785A (en) | Water swelling pellet-like plant growing medium, and method for producing the same | |
| JPS5934822A (en) | Water holding agent for growing plant | |
| CN109053320A (en) | The bentonite of Sodium Polyacrylate intercalation modification assigns fertile water-retaining agent and preparation method thereof | |
| CN117511557B (en) | Composite soil water retention impervious agent and application thereof | |
| CN109362529B (en) | Protective material applied to mine high slope | |
| JP2000212561A (en) | Charcoal-containing granule, culturing medium by using the same and culturing method | |
| JP2706727B2 (en) | Soil water retention agent and water retention method | |
| Liu et al. | The water-retaining functional slow-release fertilizer modified by carboxymethyl chitosan | |
| CN114027307B (en) | Method for preparing plant growth-promoting super absorbent resin by efficiently utilizing salix mongolica catkin | |
| CN109879704A (en) | A kind of method of soil water sorption water conservation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240531 Address after: No. 4, West Suburb Village, Yangjiaping, Jiulongpo District, Chongqing, 400051 Patentee after: Chongqing Zhongfa Energy Saving Technology Co.,Ltd. Country or region after: China Address before: 100080 3-082, floor 1-4, 27 Haidian Street, Haidian District, Beijing Patentee before: Beijing Zhutian Technology Group Co.,Ltd. Country or region before: China |