Road dust suppressant and preparation method thereof

A dust suppressant and road technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as poor dust suppression effect, algae toxins, plant or human injury, etc., to improve moisture retention rate, strong enrichment ability, The effect of improving the microbial population

Inactive Publication Date: 2020-12-08
杭州艾洋洋信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this starch-based dust suppressant is mainly aimed at coal dust, and its dust suppression effect on general municipal roads is poor, and the dust suppressant is added with chlorella powder, which may introduce algae metabolites algal toxins, which are harmful to plants or bodily harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A road dust suppressant, the preparation method is:

[0025] (1) 30g bis-ether crown ether cross-linked chitosan liquid, 5g sodium lignosulfonate and 5g glycerol glycidyl ether are mixed, and stirred to obtain a mixed solution;

[0026] (2) Add 20 g of modified humic acid to the mixed solution obtained in step (1), and mix well to obtain the road dust suppressant.

[0027] Among them, the bis-ether crown ether cross-linked chitosan solution is made by mixing di-ether crown ether cross-linked chitosan with water at a mass ratio of 1:100 and then heating to 55°C for stirring and dissolving to obtain the bis-ether crown ether cross-linked chitosan solution. Ether cross-linked chitosan solution.

[0028] The preparation method of the modified humic acid is: take polyvinyl alcohol, acrylic acid, humic acid and ammonium persulfate according to the mass ratio of 10:3:5:0.3, and then dissolve the polyvinyl alcohol in 30 times the mass of water , add acrylic acid, humic acid a...

Embodiment 2

[0030] A road dust suppressant, the preparation method is:

[0031] (1) 20g bis-ether crown ether cross-linked chitosan liquid, 2g cardanol sulfonate and 2g ethylene glycol bisglycidyl ether are mixed, and stirred to obtain a mixed solution;

[0032] (2) Add 10 g of modified humic acid to the mixed solution obtained in step (1), and mix well to obtain the road dust suppressant.

[0033] Among them, the bis-ether crown ether cross-linked chitosan solution is made by mixing the bis-ether crown ether cross-linked chitosan and water at a mass ratio of 1:80, and then heating to 45°C and stirring to dissolve to obtain the bis-ether crown ether cross-linked chitosan solution. Ether cross-linked chitosan solution.

[0034] The preparation method of the modified humic acid is: take polyvinyl alcohol, acrylic acid, humic acid and potassium persulfate according to the mass ratio of 10:2:3:0.1, and then dissolve the polyvinyl alcohol in 20 times the mass of water , add acrylic acid, hum...

Embodiment 3

[0036] A road dust suppressant, the preparation method is:

[0037] (1) 26g bis-ether crown ether cross-linked chitosan liquid, 4g cardanol sulfonate and 4g acetic anhydride are mixed, and stirred to obtain a mixed solution;

[0038] (2) Add 17g of modified humic acid to the mixed solution obtained in step (1), and mix well to obtain the road dust suppressant.

[0039] Among them, the bis-ether crown ether cross-linked chitosan solution is made by mixing the bis-ether crown ether cross-linked chitosan and water at a mass ratio of 1:120 and then heating to 60°C for stirring and dissolving to obtain the bis-ether crown ether cross-linked chitosan solution. Ether cross-linked chitosan solution.

[0040] The preparation method of the modified humic acid is: take polyvinyl alcohol, acrylic acid, humic acid and potassium persulfate according to the mass ratio of 10:2:5:0.3, and then dissolve the polyvinyl alcohol in 30 times the mass of water , add acrylic acid, humic acid and pot...

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PUM

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Abstract

The invention belongs to the field of dust suppressants, and discloses a road dust suppressant and a preparation method thereof. The road dust suppressant disclosed by the invention is prepared from adouble-ether crown ether crosslinked chitosan solution, a crosslinking agent, a surfactant and modified humic acid, the preparation method of the modified humic acid comprises the following steps: dissolving polyvinyl alcohol in water, adding acrylic acid, humic acid and an initiator which are neutralized by alkali and have the neutralization degree of 4050%, uniformly mixing, and reacting at thetemperature of 6080 DEG C to obtain the modified humic acid. According to the dust suppressant, humic acid is used for replacing starch in the prior art for modification treatment, meanwhile, the diether crown ether crosslinked chitosan liquid is added, the obtained dust suppressant can be used for municipal road construction or building construction, and the dust suppression effect is excellent.

Description

technical field [0001] The invention relates to the field of dust suppressants, in particular to a road dust suppressant and a preparation method thereof. Background technique [0002] In recent years, frequent smog outbreaks have occurred in many areas of my country, which are closely related to open dust pollution such as construction sites, dusty material piles, roads, bare ground, and desertified areas. Therefore, it is an urgent problem to take effective measures to suppress dust pollution. At present, the methods of dust prevention and control generally include windshield wall dust suppression, watering dust suppression, closed structure dust suppression, dust net covering method, chemical dust suppression, etc. Among them, the dust suppression of the windshield and the closed structure require a huge investment, and they cannot capture the dust floating in the air. The ability to suppress dust in the work area where new dust is constantly generated is limited; sprink...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 刘俊
Owner 杭州艾洋洋信息科技有限公司
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