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A kind of water-based dust suppressant and preparation method thereof

A dust suppressant, water-based technology, which is applied in the field of water-soluble polymer dust suppressant and its preparation, can solve the problems of metal ion corrosion, low molecular organic compound volatility, etc., to avoid the reduction of water solubility, good environmental safety, no The effect of three waste discharge

Inactive Publication Date: 2017-03-22
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN103265990, CN102585770 and CN103305187 etc. have disclosed the composite technology of high molecular compound and sodium chloride, sodium pyrophosphate, copper sulfate, glycerin, alkylphenol polyoxyethylene ether, although the wetting, adsorption or anti-dust agent has been improved. Freezing performance, but it also inherits the corrosion of metal ions, the volatility of low molecular organic compounds and other shortcomings

Method used

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  • A kind of water-based dust suppressant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The parts by mass are in grams, 20 grams of acrylic acid is used as unsaturated acid material, 2.5 grams of methyl acrylate is used as unsaturated acid ester material, 0.4 grams of ethylene glycol diacrylate is used as crosslinking agent material, and mixed in proportion to prepare raw material mixture for use . Add 100 grams of distilled water to the reactor equipped with a stirrer, thermometer, dropping funnel and nitrogen conduit, turn on the stirring, and replace with argon for 15 minutes. When the water bath is heated to 80°C, add 3 grams of 10% by mass concentration. Aqueous ammonium sulfate. After 10 minutes, the aforementioned raw material mixture was continuously added dropwise with a dropping funnel, and the dropping rate was controlled, and the dropping was completed within 2.5 hours. The system was heated to 85°C and kept for 1.5 hours. Under the action of stirring, the system was lowered to room temperature, and the pH value of the polymerization system wa...

Embodiment 2

[0043] The parts by mass are in grams, using 12 grams of acrylic acid and 5 grams of methacrylic acid as unsaturated acid materials, neutralizing the materials with an aqueous solution prepared by 3 grams of sodium hydroxide and 20 grams of water, and cooling to room temperature. 2.5 g of hydroxyethyl acrylate is used as the unsaturated acid ester material, and 0.1 g of N,N'-methylenebisacrylamide is used as the cross-linking agent material, mixed with the unsaturated acid material after the neutralization treatment to form a raw material mixture for use. Add 80 grams of distilled water to the reactor equipped with a stirrer, thermometer, dropping funnel and nitrogen conduit, turn on the stirring and replace with nitrogen for 20 minutes. When the water bath is heated to 80°C, add 6 grams of persulfuric acid with a mass concentration of 3%. Potassium aqueous solution. After 10 minutes, the aforementioned raw material mixture was continuously added dropwise with a dropping funnel...

Embodiment 3

[0046] The implementation steps are the same as in Example 2, except that the unsaturated acid is replaced by 12 grams of acrylic acid and 5 grams of methacrylic acid with 14 grams of acrylic acid and 3 grams of itaconic acid.

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Abstract

The invention provides a water-based dust depressor and a preparation method thereof. The dust depressor is prepared through water solution copolymerization, the dust depressor comprises 6-25 parts of unsaturated acid; 2-10 parts of unsaturated esters; 0.1-0.5 part of cross-linking agent; 0.1-2.0 parts of initiating agent and 100 parts of water; the raw materials further comprise antalkali, and the quantity of the antalkali adjusts the pH value of a reaction system to 6.0-9.0. The dust depressor is prepared by the unsaturated acid and the unsaturated esters through the water solution copolymerization technology, a shell layer can be formed on the surface of a dust particle, a good moisturizing function and a dust depressing function are achieved, and an obtained product contains neither volatile low-molecular compounds nor corrosive high valence metal ions. The prepared chemical dust depressor can be used by being diluted with water and sprayed, the comprehensive performance is good, and the safety and environmental protection are achieved.

Description

Technical field [0001] The invention relates to a chemical dust suppressant in the field of urban road dust control, in particular to a water-soluble polymer dust suppressant and a preparation method thereof. Background technique [0002] The degree of industrialization continues to accelerate and the scale of cities continues to expand. The dust pollution caused by coal yard stacking, coal burning, mineral processing, construction and motor vehicles on urban roads has become increasingly obvious, and the haze weather is frequent and lasts longer and longer. Fugitive dust pollution harms the surrounding environment and affects the normal production order and quality of life. Inhalable particulate matter (PM10) and fine particulate matter (PM2.5) are enriched in large amounts of heavy metal ions, organic oxides, bacteria and viruses. PM2.5 particles enter the bronchioles and alveoli due to the inability of the nasal cavity and throat to block them, which is harmful to the human bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/06C08F222/02C08F220/58C08F220/14C08F220/28C08F222/14C08F222/38C08F2/10C09K3/22
Inventor 王新韩双福殷福星殷昊张福强
Owner HEBEI UNIV OF TECH
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