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Method for preparing graphene quantum dot soil solidification agent

A technology of graphene quantum dots and soil curing agent, which is applied in the field of nanomaterials, can solve the problems of large amount of cementing materials, high soil selectivity, and short service life, etc., to achieve enhanced soil bearing capacity, broad application prospects, and reduced The effect of the zeta potential

Inactive Publication Date: 2019-11-12
杨国俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main component of biological soil stabilizer is enzyme. The strength of the solidified soil of this kind of soil stabilizer is not high enough, and the amount of cementing material added is large, the effect of soil porosity and permeability is poor, and it is difficult to obtain high-quality roadbed. Use life is not long
[0008] According to the curing effect of the above-mentioned soil curing agent is not ideal, the application range is narrow, the selectivity to the soil to be solidified is high, and the amount of cement and sand mixed in the use is large, which cannot meet the performance requirements of the soil curing agent, which is not conducive to the soil. Therefore, it is imperative to research and develop a new type of soil curing agent that is suitable for a wide range of soil pH values, is not affected by the geological soil environment, can be cured by local materials, and is green and environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] One, the polymer graphene quantum dot solution, the polymer graphene quantum dot solution, in parts by weight, consists of 150 parts of phytic acid powder, 350 parts of water glass, 150 parts of sodium tripolyphosphate, multiple times of water 700 components;

[0048] (1) Put the phytic acid powder into the first vacuum reaction furnace, add several times of water dilution, water glass, and sodium tripolyphosphate in sequence, set the rotation speed to not less than 450 / rps, and set the temperature to 95°C. Shut down after the reaction time of 8 / hour, and cool at room temperature to obtain the polymer graphene quantum dot mother liquor; filter it with a 0.1 μm microporous membrane, and use a 3500Da dialysis bag for the lower liquid, and dialyze it for 24 / hour to remove excess impurities in the reactant to obtain Polymer graphene quantum dot aqueous solution A-1; quenched with liquid nitrogen, freeze-dried in a freeze dryer and then ground to obtain polymer graphene quan...

Embodiment 2

[0057] One, the polymer graphene quantum dot solution, the polymer graphene quantum dot solution, in parts by weight, consists of 550 parts of phytic acid powder, 350 parts of water glass, 350 parts of sodium tripolyphosphate, multiple times of water 800 components;

[0058] (2) Put the phytic acid powder into the first vacuum reaction furnace, add several times of water dilution, water glass, and sodium tripolyphosphate in sequence, set the rotation speed to not less than 450 / rps, and set the temperature to 95°C. Shut down after the reaction time of 8 / hour, cool at room temperature to obtain the mother liquor of polymer graphene quantum dots; filter with a 0.25 μm microporous membrane, and use a 3500Da dialysis bag for the lower layer of liquid, dialyze for 72 / hour, remove excess impurities in the reactant, and obtain Polymer graphene quantum dot aqueous solution A-1; quenched with liquid nitrogen, freeze-dried in a freeze dryer and then ground to obtain polymer graphene quan...

Embodiment 3

[0065] One, the polymer graphene quantum dot solution, the polymer graphene quantum dot solution, in parts by weight, consists of 350 parts of phytic acid powder, 200 parts of water glass, 200 parts of sodium tripolyphosphate, multiple times of water 650 components;

[0066](3) Put the phytic acid powder into the first vacuum reaction furnace, add several times of water dilution, water glass, and sodium tripolyphosphate in sequence, set the rotation speed at 450 / rps, set the temperature at 65°C, and react for 5 Shut down after / hour, cooled at room temperature to obtain polymer graphene quantum dot mother liquor; filtered with 0.15μm microporous membrane, and the lower liquid was dialyzed for 45 / hour with 3500Da dialysis bag to remove excess impurities in the reactant to obtain polymer graphite Graphene quantum dot aqueous solution A-1; quenched with liquid nitrogen, freeze-dried in a freeze dryer and then ground to obtain polymer graphene quantum dot powder B-1.

[0067] Two...

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Abstract

The invention discloses a method for preparing a graphene quantum dot soil solidification agent which is different from soil solidification agents at home and abroad. The method includes subjecting apolymer graphene quantum dot solution, a polymer graphene quantum dot expansion liquid, and a polymer graphene quantum dot surface active solution to thermal reaction, centrifugal treatment, ultrasonic treatment, dialysis treatment, freeze-drying and grinding treatment to obtain the novel polymer graphene quantum dot solidification agent which is high in solidification strength, low in dosage forsolidification, quick to construct and green. The soil solidification agent is suitable for solidification of various concrete materials, subgrade soil, tailing backfilling and solidification, secondary solidification of construction waste, lake sludge solidification, oil field sludge solidification, road construction solidification, building construction solidification, port construction solidification, airport construction solidification, etc..

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method for preparing a graphene quantum dot soil curing agent. Background technique [0002] In the large-scale construction of cities, blasting gravel and digging rivers not only destroy the natural environment, but sand and gravel materials are far from meeting the growing needs of infrastructure construction. If the cheap and widely sourced soil can be fully and effectively used, As an engineering construction material, it can reduce the damage to natural resources. Engineering tests have proved that the application of soil curing agent can effectively improve the strength and various physical and mechanical properties of the solidified soil, and local materials can save resources, protect the environment and facilitate construction. , Save project investment, improve project quality, prolong project life, etc. Domestic enterprises have also developed their own soil c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/00C09K103/00
CPCC09K17/00C09K2103/00
Inventor 赵广全杨国俊陈曦
Owner 杨国俊
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