CN107936977B - Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion - Google Patents
Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion Download PDFInfo
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- CN107936977B CN107936977B CN201711500581.5A CN201711500581A CN107936977B CN 107936977 B CN107936977 B CN 107936977B CN 201711500581 A CN201711500581 A CN 201711500581A CN 107936977 B CN107936977 B CN 107936977B
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- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/32—Prepolymers; Macromolecular compounds of natural origin, e.g. cellulosic materials
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- 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
- C09K2105/00—Erosion prevention
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- General Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
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Abstract
The invention discloses a kind of long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion, inhibitor includes the energy adhesive aggregation grains of sand, inhibits the polymer composite of sandy soil drift and be sprayed at the Protective coatings that polymer composite surface avoids polymer composite fast degradation.The polymer composite is configured to solution, is then uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer；Then by the suspension that Protective coatings the are prepared desert surface that is uniformly sprayed at that treated.It can inhibit organic polymer degradation, extend the lasting period, high-molecular compound degradation speed slows down 20% or more, extends 30% or more the lasting period of inhibitor, to realize the long-acting purpose fixed the sand.This method raw material is environmental-friendly, easy to operate, and without smooth and stirring desert soil, application value with higher.
Description
Technical field
The invention belongs to control of desert fields, specifically, being related to a kind of long-acting Desert Expansion inhibitor and long-acting inhibition
The method of Desert Expansion.
Background technique
Desertification is the long-standing ecological problem in China, seriously constrains China's agricultural and socio-economic development.Desert
Improvement is environmental area research hotspot all the time, is made significant progress in terms of Treatment process.Existing administering method is main
Including engineering measure, phytoremediation and chemical fixation.Although these methods there is different degrees of improvement to imitate desertification
Fruit, but each has the shortcomings that, greatly limits its scale application.Engineering measure mainly passes through engineering of checking winds and fixing drifting sand
Desert Control, major defect are at high cost.Phytoremediation mainly passes through plantation drought-enduring plant and restores desert ecological, main
Disadvantage is that the period is long.Chemical fixation, which is mainly reached by using organic polymer in desert surface one layer of adhesive layer of formation, to fix the sand
Purpose, major defect be organic polymer easily High temperature shine under the conditions of decompose, validity period is short.With first two method ratio
Compared with chemical fixation is received more and more attention since easy to operate, the period is short, in order to promote its large-scale application, is compeled
A kind of method for delaying organic polymer binder degradation will be developed by being essential.
CN1854247A, which discloses one kind, to fix the sand and prepares restorer and preparation method thereof, by attapulgite and nutritional ingredient
It is introduced into organic macromolecular adhesives, can not achieve the effect that macromolecule is effectively inhibited to degrade.
Summary of the invention
In order to solve the above-mentioned technical problem, the first object of the present invention is to provide a kind of long-acting Desert Expansion inhibitor,
Effectively high-molecular compound can be inhibited to degrade, extend the lasting period.The second object of the present invention is to provide a kind of long-acting inhibition sand
The method of desert expansion does not need heavy mechanical equipment founding, smooth and stirring desert soil, easy to operate, environmental-friendly, holding effect
Phase is long.
In order to realize above-mentioned first purpose, technical scheme is as follows: a kind of long-acting Desert Expansion inhibitor, special
Sign is: including the energy adhesive aggregation grains of sand, inhibiting the polymer composite of sandy soil drift and is sprayed at polymer composite table
Face avoids the Protective coatings of polymer composite fast degradation.
In above scheme: the polymer composite is by polyacrylamide, Sodium Polyacrylate and xanthan gum according to quality
It is uniformly mixed and is made than 1-3: 2-5: 3-6；
The Protective coatings are the attapulgite modified by polyvinyl alcohol.
Polymer composite is sprayed at desert surface, moisture has not only been able to maintain but also the energy adhesive aggregation grains of sand, so that sandy soil be inhibited to float
It moves.The attapulgite suspension of obtained polyvinyl alcohol modification, polyvinyl alcohol are that attapulgite's surface introduces many-OH, substantially
Enhance its water conservation and dispersion performance.It is sprayed at polymer composite treated desert surface, to form nano net, phase
When in desert surface cover layer protecting film, the degradation of polymer composite can be inhibited and prevent moisture in desert
Volatilization, plays long-acting sand fixation.
In above scheme: polyvinyl alcohol modification attapulgite the preparation method comprises the following steps: attapulgite and polyvinyl alcohol are pressed
It is uniformly mixed according to mass ratio 7-10: 1-2, then plus tap water is configured to the solution that concentration is 1-5g/L, Yu Wendu 20-50 DEG C
Under, it stirs 10-20 minutes, obtains the attapulgite suspension of polyvinyl alcohol modification.
In above scheme: the partial size of attapulgite is 200-400 mesh, mixing speed 100-200rpm.Be conducive to sufficiently
It is uniformly mixed.
In above scheme: the partial size of the polyacrylamide is 50-200 mesh, ten thousand molecular weight of 1000-2000.
In above scheme: the partial size of Sodium Polyacrylate is 50-200 mesh, and the partial size of xanthan gum is 50-200 mesh.
The second object of the present invention is such that a kind of long-acting method for inhibiting Desert Expansion, it is characterised in that: will be above-mentioned
Polymer composite be configured to solution, be then uniformly sprayed at desert surface, it made to penetrate into surface layer 10-30cm sandy soil naturally
In；Then by the suspension that Protective coatings the are prepared desert surface that is uniformly sprayed at that treated.
This method is environmental-friendly, easy to operate, and without smooth and stirring desert soil, at low cost.
In above scheme: in accordance with the following steps:
(1), polyacrylamide, Sodium Polyacrylate, xanthan gum are uniformly mixed according to 1-3: 2-5: 3-6 mass ratio and are made
Composite material；
(2), water is added to be configured to the solution that concentration is 1-5g/L in composite material obtained in step (1), then according to every
The dosage of mu 100-1000kg solute is uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer；
(3), attapulgite is uniformly mixed with polyvinyl alcohol according to mass ratio 7-10: 1-2, then plus water is configured to concentration
For the solution of 1-5g/L, at Yu Wendu 20-50 DEG C, stirs 10-20 minute, it is suspended to obtain the attapulgite that polyvinyl alcohol is modified
Liquid；
(4), suspension obtained in (3) is uniformly sprayed in step (2) according to the dosage of 100-200kg solute per acre
Treated desert surface.
The utility model has the advantages that of the invention be uniformly sprayed at polymer composite on desert surface, and surface layer is penetrated into naturally
Then sandy soil spray the attapulgite of polyvinyl alcohol modification again, by the strong water conservation of composite material and adhesive property that surface layer is husky
Soil is fixed, and the attapulgite then modified by polyvinyl alcohol inhibits the drop of composite material in the nano net that desert surface is formed
Solution can inhibit organic polymer degradation, extend the lasting period, and high-molecular compound degradation speed reduces by 20% or more, extends and inhibits
30% or more the lasting period of agent, to realize the long-acting purpose fixed the sand.This method raw material is environmental-friendly, easy to operate, and is not necessarily to
Smooth and stirring desert soil, application value with higher.
Specific embodiment
Embodiment 1
1, by polyacrylamide (50 mesh, cation, 10,000,000 molecular weight), Sodium Polyacrylate (50 mesh), xanthan gum (50
Mesh) according to 1: 2: 3 mass ratio be uniformly mixed composite material is made.
2, tap water is added to be configured to the solution that concentration is 1g/L in composite material obtained, it is then molten according to 100kg per acre
The dosage of matter is uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer, has not only been able to maintain moisture but also energy adhesive aggregation
The grains of sand, to inhibit sandy soil drift
3, attapulgite (200 mesh) is uniformly mixed with polyvinyl alcohol according to mass ratio 7: 1, then plus tap water is configured to
Concentration is the solution of 1g/L, and 20 DEG C of Yu Wendu, stirring (100-200rpm) 10 minutes obtains the attapulgite of polyvinyl alcohol modification
Suspension.Polyvinyl alcohol is that attapulgite's surface introduces many-OH, substantially enhances its water conservation and dispersion performance.
4, by obtained suspension according to the dosage of the 100kg solute per acre desert that is uniformly sprayed in step 2 that treated
Surface, to form nano net, be equivalent to desert surface cover layer protecting film, can inhibit composite material degradation and
Moisture evaporation in desert is prevented, long-acting sand fixation is played.
Obtained inhibitor is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert
Moisture loss 42% reduces sandy soil drift weight 37.8%.
Comparative example 1
It is polyacrylamide (50 mesh, cation, 10,000,000 molecular weight), Sodium Polyacrylate (50 mesh), xanthan gum (50 mesh), recessed
Convex stick native (200 mesh) and polyvinyl alcohol are once sprayed at desert table after evenly mixing according to the applied amount per acre of embodiment 1
Face.It is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert moisture loss 28.9%, reduce husky
Native drift weight 20.8%.Embodiment 1 is compared with comparative example 1,1 high-molecular compound degradation speed low 23% of embodiment, inhibits
The lasting period of agent long 31%.
Embodiment 2
1, by polyacrylamide (100 mesh, cation, 15,000,000 molecular weight), Sodium Polyacrylate (100 mesh), xanthan gum
(100 mesh) is uniformly mixed according to 2: 3: 5 mass ratio and composite material is made.
2, tap water is added to be configured to the solution that concentration is 2g/L in composite material obtained, it is then molten according to 500kg per acre
The dosage of matter is uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer, has not only been able to maintain moisture but also energy adhesive aggregation
The grains of sand, to inhibit sandy soil drift
3, attapulgite (300 mesh) is uniformly mixed with polyvinyl alcohol according to mass ratio 8: 1, then plus tap water is configured to
Concentration is the solution of 3g/L, and 30 DEG C of Yu Wendu, stirring (100-200rpm) 15 minutes obtains the attapulgite of polyvinyl alcohol modification
Suspension.Polyvinyl alcohol is that attapulgite's surface introduces many-OH, substantially enhances its water conservation and dispersion performance.
4, by obtained suspension according to the dosage of the 150kg solute per acre desert that is uniformly sprayed in step 2 that treated
Surface, to form nano net, be equivalent to desert surface cover layer protecting film, can inhibit composite material degradation and
Moisture evaporation in desert is prevented, long-acting sand fixation is played.
Obtained inhibitor is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert
Moisture loss 40.4% reduces sandy soil drift weight 38.9%.
Comparative example 2
By polyacrylamide (100 mesh, cation, 15,000,000 molecular weight), Sodium Polyacrylate (100 mesh), xanthan gum (100
Mesh), attapulgite (300 mesh) and polyvinyl alcohol be once sprayed at after evenly mixing according to the applied amount per acre of embodiment 2
Desert surface.It is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert moisture loss 27.6%,
Reduce sandy soil drift weight 23.2%.For embodiment 2 compared with comparative example 2,2 high-molecular compound degradation speed of embodiment is low
22.3%, the lasting period long 32.5% of inhibitor.
Embodiment 3
1, by polyacrylamide (200 mesh, cation, 20,000,000 molecular weight), Sodium Polyacrylate (200 mesh), xanthan gum
(200 mesh) is uniformly mixed according to 3: 5: 6 mass ratio and composite material is made.
2, tap water is added to be configured to the solution that concentration is 5g/L in composite material obtained, it is then molten according to 1000kg per acre
The dosage of matter is uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer, has not only been able to maintain moisture but also energy adhesive aggregation
The grains of sand, to inhibit sandy soil drift.
3, attapulgite (400 mesh) is uniformly mixed with polyvinyl alcohol according to mass ratio 5: 1, then plus tap water is configured to
Concentration is the solution of 5g/L, in temperature 50 C, stirs (100-200rpm) 20 minutes, obtains the attapulgite of polyvinyl alcohol modification
Suspension.Polyvinyl alcohol is that attapulgite's surface introduces many-OH, substantially enhances its water conservation and dispersion performance.
4, by obtained suspension according to the dosage of the 200kg solute per acre desert that is uniformly sprayed in step 2 that treated
Surface, to form nano net, be equivalent to desert surface cover layer protecting film, can inhibit composite material degradation and
Moisture evaporation in desert is prevented, long-acting sand fixation is played.
Obtained inhibitor is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert
Moisture loss 48.9% reduces sandy soil drift weight 45.6%.
Comparative example 3
It will be by polyacrylamide (200 mesh, cation, 20,000,000 molecular weight), Sodium Polyacrylate (200 mesh), xanthan gum
(200 mesh), attapulgite (400 mesh) and polyvinyl alcohol once spray after evenly mixing according to the applied amount per acre of embodiment 3
It is sprinkled upon desert surface.It is tested in Zhongweiof Ningxia, northwest China Shapotou, the results showed that, which can reduce desert moisture loss
28.6%, reduce sandy soil drift weight 25.1%.Embodiment 3 is compared with comparative example 3,3 high-molecular compound of embodiment degradation speed
Low 21.5% is spent, the lasting period long 35.2% of inhibitor.
The present invention is not limited to above-mentioned specific embodiment, it should be understood that those skilled in the art are without creativeness
Labour, which according to the present invention can conceive, makes many modifications and variations.In short, all technician in the art are according to this
The design of invention passes through the available technical side of logical analysis, reasoning, or a limited experiment on the basis of existing technology
Case, all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of long-acting Desert Expansion inhibitor, it is characterised in that: including the energy adhesive aggregation grains of sand, inhibit the macromolecule of sandy soil drift multiple
Condensation material and it is sprayed at the Protective coatings that polymer composite surface avoids polymer composite fast degradation；It is described
Polymer composite is uniformly mixed system according to mass ratio 1-3:2-5:3-6 by polyacrylamide, Sodium Polyacrylate and xanthan gum
At；The Protective coatings are the attapulgite modified by polyvinyl alcohol.
2. long-acting Desert Expansion inhibitor according to claim 1, it is characterised in that: the attapulgite of polyvinyl alcohol modification
The preparation method comprises the following steps: attapulgite is uniformly mixed with polyvinyl alcohol according to mass ratio 7-10:1-2, then plus tap water is configured to
Concentration is the solution of 1-5g/L, at Yu Wendu 20-50 DEG C, is stirred 10-20 minute, and the attapulgite for obtaining polyvinyl alcohol modification hangs
Turbid.
3. long-acting Desert Expansion inhibitor according to claim 2, it is characterised in that: the partial size of attapulgite is 200-400
Mesh, mixing speed 100-200rpm.
4. the long-acting Desert Expansion inhibitor according to Claims 2 or 3, it is characterised in that: the partial size of the polyacrylamide
For 50-200 mesh, ten thousand molecular weight of 1000-2000.
5. long-acting Desert Expansion inhibitor according to claim 4, it is characterised in that: the partial size of Sodium Polyacrylate is 50-200
Mesh, the partial size of xanthan gum are 50-200 mesh.
6. a kind of long-acting method for inhibiting Desert Expansion, it is characterised in that: match polymer composite described in claim 1
Solution is made, is then uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer；Then membrane material will be protected
The suspension that material is prepared uniformly is sprayed at that treated desert surface.
7. a kind of long-acting method for inhibiting Desert Expansion according to claim 6, it is characterised in that: in accordance with the following steps:
(1), by polyacrylamide, Sodium Polyacrylate, xanthan gum according to 1-3:2-5:3-6 mass ratio be uniformly mixed be made it is compound
Material；
(2), water is added to be configured to the solution that concentration is 1-5g/L in composite material obtained in step (1), then according to per acre
The dosage of 100-1000kg solute is uniformly sprayed at desert surface, penetrates into it naturally in the 10-30cm sandy soil of surface layer；
(3), attapulgite is uniformly mixed with polyvinyl alcohol according to mass ratio 7-10:1-2, then plus water is configured to concentration as 1-
The solution of 5g/L at Yu Wendu 20-50 DEG C, stirs 10-20 minute, obtains the attapulgite suspension that polyvinyl alcohol is modified；
(4), suspension obtained in (3) is uniformly sprayed on processing in step (2) according to the dosage of 100-200kg solute per acre
Desert surface afterwards.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500581.5A CN107936977B (en) | 2017-12-28 | 2017-12-28 | Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion |
| PCT/CN2018/111549 WO2019128420A1 (en) | 2017-12-28 | 2018-10-24 | Long-effect desert expansion inhibitor and long-effect desert expansion inhibiting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500581.5A CN107936977B (en) | 2017-12-28 | 2017-12-28 | Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion |
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| CN107936977A CN107936977A (en) | 2018-04-20 |
| CN107936977B true CN107936977B (en) | 2019-08-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107936977B (en) * | 2017-12-28 | 2019-08-13 | 广州天蓝地绿科技发展有限公司 | Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion |
| CN110330980B (en) * | 2019-07-12 | 2021-07-23 | 浙江尚瑞特科技股份有限公司 | Degradable self-repairing water-retaining sand-fixing agent and preparation method thereof |
| CN112375573A (en) * | 2020-10-27 | 2021-02-19 | 中国科学院西北生态环境资源研究院 | Substrate material for biological sand fixation, biological sand fixation material and sand fixation method |
| CN114540038A (en) * | 2022-01-25 | 2022-05-27 | 西藏大成科技发展有限责任公司 | Ecological restoration material suitable for high-altitude areas and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262886A (en) * | 1984-06-08 | 1985-12-26 | Seikaken:Kk | Soil conditioner |
| CN1209449A (en) * | 1997-08-24 | 1999-03-03 | 何相华 | Sand stabilization method for spraying liquid binder |
| CN1583953A (en) * | 2004-06-15 | 2005-02-23 | 西北大学 | Water absorbing and preserving polymer soil protecting net film spray agent and its preparation |
| CN101665698A (en) * | 2008-09-04 | 2010-03-10 | 中国科学院兰州化学物理研究所 | Attapulgite clay composite liquid sand fixation material and method for preparing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107936977B (en) * | 2017-12-28 | 2019-08-13 | 广州天蓝地绿科技发展有限公司 | Long-acting Desert Expansion inhibitor and the long-acting method for inhibiting Desert Expansion |
-
2017
- 2017-12-28 CN CN201711500581.5A patent/CN107936977B/en active Active
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- 2018-10-24 WO PCT/CN2018/111549 patent/WO2019128420A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262886A (en) * | 1984-06-08 | 1985-12-26 | Seikaken:Kk | Soil conditioner |
| CN1209449A (en) * | 1997-08-24 | 1999-03-03 | 何相华 | Sand stabilization method for spraying liquid binder |
| CN1583953A (en) * | 2004-06-15 | 2005-02-23 | 西北大学 | Water absorbing and preserving polymer soil protecting net film spray agent and its preparation |
| CN101665698A (en) * | 2008-09-04 | 2010-03-10 | 中国科学院兰州化学物理研究所 | Attapulgite clay composite liquid sand fixation material and method for preparing same |
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| WO2019128420A1 (en) | 2019-07-04 |
| CN107936977A (en) | 2018-04-20 |
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