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Macromolecular sand-fixation agent and method for preparing same

A sand-fixing agent and polymer technology, applied in chemical instruments and methods, other chemical processes, applications, etc., can solve the problems of low strength, poor stability, and small penetration depth, etc., and achieve simple construction and good adhesion , the effect of low production cost

Inactive Publication Date: 2007-05-30
蒋百源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this sand-fixing agent also has shortcomings such as small penetration depth, forming a weak and thin sealing layer on the sand surface, low strength, poor stability, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a. mix

[0022] Take 170 parts of deionized water and 30 parts of 2.5% gelatin solution and stir in the reactor to make them fully mixed.

[0023] b. Polymerization

[0024] Raise the temperature of the above mixture to 80°C, add 30 parts of vinyl acetate, 65 parts of butyl acrylate, 5 parts of acrylic acid, and 0.4 parts of benzoyl peroxide, react for 4 hours, then raise the temperature to 90°C and keep it warm for 2 hours, then naturally cool to 40 The material is discharged below ℃ to obtain polymer particles.

[0025] c. Washing and drying

[0026] The above polymer particles were washed with water and dried at 60°C for 4 hours.

[0027] d. Synthesis

[0028] Add 100 parts of the above-mentioned dried polymer particles, 185 parts of deionized water, and 4 parts of diethylene glycol monoethyl ether to 90°C, add 8 parts of 28% ammonia water dropwise, and stir for 6 hours to obtain a pH value of ≈7.5- 8.5 sand-fixing agent.

Embodiment 2

[0030] a. mix

[0031] Take 165 parts of deionized water and 25 parts of 2.5% gelatin solution and stir in the reactor to make them fully mixed.

[0032] b. Polymerization

[0033] Raise the temperature of the above mixed solution to 75°C, add 25 parts of vinyl acetate, 60 parts of butyl acrylate, 3 parts of acrylic acid, 0.18 parts of ammonium persulfate, and 0.12 parts of sodium bisulfite, react for 4 hours and then raise the temperature to 85°C for 2 hours , naturally cooled to below 40°C and discharged to obtain polymer particles.

[0034] c. Washing and drying

[0035] The above polymer particles were washed with water and dried at 60°C for 4 hours.

[0036] d. Synthesis

[0037] Add 95 parts of the above-mentioned dried polymer particles, 180 parts of deionized water, and 3.5 parts of diethylene glycol monoethyl ether, and add 7 parts of 28% ammonia water dropwise when the temperature is raised to 85°C, and stir for 6 hours to obtain a pH value of ≈7.5 -8.5 sand-fix...

Embodiment 3

[0039] a. mix

[0040] Take 175 parts of deionized water and 35 parts of 2.5% gelatin solution and stir in the reactor to make them fully mixed.

[0041] b. Polymerization

[0042] When the temperature of the above mixture is raised to 85°C, add 35 parts of vinyl acetate, 70 parts of butyl acrylate, 7 parts of acrylic acid, 0.45 parts of potassium persulfate, and 0.28 parts of sodium sulfosulfate. After 4 hours of reaction, the temperature is raised to 95°C and kept for 2 hours. Cool naturally to below 40°C and discharge to obtain polymer particles.

[0043] c. Washing and drying

[0044] The above polymer particles were washed with water and dried at 60°C for 4 hours.

[0045] d. Synthesis

[0046] Add 105 parts of the above-mentioned dried polymer particles, 190 parts of deionized water, and 4.5 parts of diethylene glycol monoethyl ether, and add 9 parts of 28% ammonia water dropwise when the temperature is raised to 95°C, and stir for 6 hours to obtain a pH value of ≈7....

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PUM

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Abstract

The invention discloses a new-typed macromolecular sand-binding agent and making method, which comprises the following steps: adding vinyl acetate, butyl acrylate, acroleic acid and initiator in the composite liquid of deionized water and gelatin; copolymerizing to obtain polymer particle; washing polymer particle; drying to blend with diethylene glycol monoether and ammonia to synthesize the product.

Description

technical field [0001] The invention relates to the technical field of chemical sand fixing, in particular to a novel polymer sand fixing agent and a preparation method thereof. Background technique [0002] Chemical sand fixation is to spray organic polymer bonding materials in the surrounding areas of the desert that are likely to cause sand damage, roads and railways that cross the desert area, and outside the cultural relics protection areas that are easy to be covered by sand damage, so as to bind loose sand particles. Then, a consolidation layer is formed to prevent the wind from blowing and migrating the sand particles, and has the effect of fixing the quicksand. At present, dozens of countries in the world have developed hundreds of chemical preparations for the improvement of quicksand and soil, which mainly fall into the following four categories: cement slurry, water glass, petroleum products and polymer water-absorbing resin kind. Cement slurry is used for sand...

Claims

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Application Information

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IPC IPC(8): C09K17/22C08L33/08C08K5/06C09K105/00
Inventor 蒋百源蒋凯夏林州
Owner 蒋百源
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