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Moisturizing dust suppressant for road dust and preparation method thereof

A dust suppressant and wet-type technology, applied in chemical instruments and methods, other chemical processes, protein coatings, etc., can solve the problems of secondary pollution, low content, and reduced frictional resistance on the road surface, so as to prevent secondary pollution Raised effect

Active Publication Date: 2021-05-07
中科恒华(山东)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Dust suppressants generally have weak moisturizing power and poor lasting power;
[0005] 2. The application of road dust suppressant reduces the frictional resistance of the road surface, which is likely to cause safety hazards;
[0006] 3. The ecological and environmental protection problem of road dust suppressant, which produces secondary pollution during the application process
Glycerol in this patent is used as the main humectant but its content is low (0.1-0.5%), and the purpose of moisturizing must be achieved by artificially replenishing water, and the moisturizing ability is limited
[0008] Chinese patent CN201710092303.4 discloses a dust suppressant for roads, the main components of which are disperse latex, emulsion, hygroscopic moisturizer, adsorbent, antifreeze, wetting agent, filler, etc. Calcium carbonate, calcium oxide, calcium hydroxide, diatomaceous earth and other fillers will bring new hidden dangers of dust pollution after drying

Method used

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  • Moisturizing dust suppressant for road dust and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A moisturizing dust suppressant for road dust, consisting of the following components in mass percentage:

[0036] Mixed aqueous solution, in which acetyl tributyl citrate is 0.5%, aqueous stearic acid emulsion is 3%, and soluble starch is 0.1%;

[0037] Binder chitosan: 0.1%;

[0038] Humectant seaweed biological sugar gum: 0.1%;

[0039] Surfactant fatty alcohol polyoxyalkyl ether: 0.1%.

[0040] The preparation method of above-mentioned dust suppressant, comprises the steps:

[0041] (1) Weigh each raw material according to the mass percentage, divide the water into three parts A, B, and C, heat A to 70°C, and heat B and C to 40°C; wherein, the mass ratio of A:B:C is 1:1:1;

[0042] (2) Mix chitosan with water in part A, heat and stir at 100 rpm / min for 30 min, then cool to room temperature to obtain aqueous solution a;

[0043] (3) Acetyl tributyl citrate was mixed with water in part B, and aqueous stearic acid emulsion and soluble starch were added in sequence...

Embodiment 2

[0047] A moisturizing dust suppressant for road dust, consisting of the following components in mass percentage:

[0048] Mixed aqueous solution, wherein acetyl tributyl citrate is 1%, aqueous stearic acid emulsion is 4%, and soluble starch is 3%;

[0049] Binder sodium caseinate: 10%;

[0050] Humectant glycerin polyoxyethylene ether: 5%;

[0051] Surfactant fatty alcohol polyoxyalkyl ether: 1%.

[0052] The preparation method of above-mentioned dust suppressant, comprises the steps:

[0053] (1) Weigh each raw material according to the mass percentage, divide the water into three parts A, B, and C, heat A to 90°C, and heat B and C to 50°C; wherein, the mass ratio of A:B:C is 1:0.5:0.5;

[0054] (2) Mix sodium caseinate with water in part A, heat and stir at 300 rpm / min for 40 min, then cool to room temperature to obtain aqueous solution a;

[0055] (3) Acetyl tributyl citrate was mixed with water in part B, and aqueous stearic acid emulsion and soluble starch were added...

Embodiment 3

[0059] A moisturizing dust suppressant for road dust, consisting of the following components in mass percentage:

[0060] Mixed aqueous solution, in which acetyl tributyl citrate is 0.5%, aqueous stearic acid emulsion is 3%, and soluble starch is 0.1%;

[0061] Binder sodium caseinate: 0.1%;

[0062] Humectant seaweed biological sugar gum: 0.1%, glycerol polyoxyethylene ether: 0.1%;

[0063] Surfactant fatty alcohol polyoxyalkyl ether: 0.1%.

[0064] The preparation method of above-mentioned dust suppressant, comprises the steps:

[0065] (1) Weigh each raw material according to the mass percentage, divide the water into three parts A, B, and C, heat A to 80°C, and heat B and C to 45°C; wherein, the mass ratio of A:B:C is 1:1:1;

[0066] (2) Chitosan is mixed with water in part A, and after stirring for 30 minutes at a rotating speed of 200 rpm / min, it is cooled to room temperature to obtain aqueous solution a;

[0067] (3) Acetyl tributyl citrate was mixed with water in ...

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Abstract

The invention belongs to the technical field of road dust control, and relates to a moisturizing dust suppressant for road dust and a preparation method thereof. The moisturizing dust suppressant for road dust of the present invention is prepared from the following raw materials in mass percent: 3.6% to 8% of a mixture of acetyl tributyl citrate, aqueous stearic acid emulsion and soluble starch, and 0.1% of a binder. ~10%, humectant 0.1~5%, surfactant 0.1~1%, balance is water. The road dust suppressant provided by the invention is sprayed on the road to form a layer of "soft film" with strong moisture retention, which can effectively condense the small particles on the ground surface into large particles, so as to effectively prevent the secondary raising of dust, thereby To achieve the effect of dust suppression.

Description

technical field [0001] The invention belongs to the technical field of road dust control, and relates to a moisturizing dust suppressant for road dust and a preparation method thereof. Background technique [0002] A large amount of dust accumulates on roads such as urban roads and expressways, and the road dust continues to diffuse into the atmosphere during the driving process of vehicles, seriously polluting the surrounding environment and affecting the normal work and life of surrounding residents. Dynamic dust suppression has always been a difficult point in dust control. Most of the existing dust suppressant products and technologies use calcium salts, halides and alcohols as main components. [0003] Most of the current road dust suppressants have the following problems: [0004] 1. Dust suppressants generally have weak moisturizing power and poor lasting power; [0005] 2. The application of road dust suppressant reduces the frictional resistance of the road surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22C09D103/02C09D105/08C09D7/63C09D7/65C09D189/00
CPCC08L2205/025C08L2205/035C09D103/02C09D105/08C09D189/005C09K3/22C09D7/63C09D7/65C08L5/08C08L71/02C08L5/00C08K5/11C08K5/09C08L3/02C08L89/005
Inventor 孙青松崔媚华张延丽孙博达孙洪波
Owner 中科恒华(山东)环保科技有限公司
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