Liquid road dust suppressant and preparation method thereof

Abstract

The invention relates to the technical field of environment pollution treatment, and concretely relates to a liquid road dust suppressant and a preparation method thereof. The liquid road dust suppressant is prepared through mixing 2.5-7.5 wt% of a hygroscopic agent, 0.5-4.0 wt% of an osmotic agent, 0.1-5.0 wt% of a film forming agent, 0.5-2.0 wt% of an additive, and the balance water; the hygroscopic agent is a calcium chloride, active alumina and sodium silicate mixture, and a mass ratio of the calcium chloride to the active alumina to the sodium silicate is 2:1:2; the osmotic agent is sodium dodecyl benzene sulfonate; the film forming agent is aqueous polyurethane-acrylic acid copolymer resin; and the additive is sodium lignosulfonate. The dust suppressant has the advantages of high film strength, good freeze resistance, suitableness for the low temperature environment, nontoxic and harmless components, and environmental protection.

Description

technical field

[0001] The invention relates to the technical field of environmental pollution control, in particular to a liquid road dust suppressant and a preparation method thereof. Background technique

[0002] Dust pollution is a serious threat to people's health. Living in a dust-polluted environment can cause a variety of respiratory diseases, especially for the elderly and children.

[0003] At present, the main method of road dust suppression is wet control. Although sprinkler dust suppression is easy to operate, it cannot play a good dust suppression effect due to the rapid evaporation of water. The existing dust suppressant has high brittleness and low strength in the film formed, and is not suitable for winter because it is easy to freeze in low temperature environment. Therefore, it is necessary to develop a dust suppressant with high film strength, low brittleness and suitable for low temperature environment. Contents of the invention

[0004] The purpose ...

Examples

Embodiment 1

[0014] Take 1g of calcium chloride, 0.5g of activated alumina, and 1g of sodium silicate and mix evenly, then add 1g of sodium dodecylbenzenesulfonate and 0.5g of water-based polyurethane-acrylic acid copolymer resin in sequence, then add 95.5g of water, and stir for 30 minutes Add 0.5 g of sodium lignosulfonate and continue to stir evenly to obtain the dust suppressant 1.

Embodiment 2

[0016] Take 1g of calcium chloride, 0.5g of activated alumina, and 1g of sodium silicate and mix evenly, then add 2g of sodium dodecylbenzenesulfonate and 2g of water-based polyurethane-acrylic copolymer resin in sequence, then add 92.5g of water, stir for 30 minutes, and then add 1g of sodium lignosulfonate, and continue to stir evenly to obtain the dust suppressant 2.

Embodiment 3

[0018] Take 3g of calcium chloride, 1.5g of activated alumina, and 3g of sodium silicate and mix evenly, then add 4g of sodium dodecylbenzenesulfonate and 4g of water-based polyurethane-acrylic acid copolymer resin in sequence, then add 82.5g of water, stir for 30 minutes, and then add 2g of sodium lignosulfonate, and continue to stir evenly to obtain the dust suppressant 3.

technical field

[0001] The invention relates to the technical field of environmental pollution control, in particular to a liquid road dust suppressant and a preparation method thereof. Background technique

[0002] Dust pollution is a serious threat to people's health. Living in a dust-polluted environment can cause a variety of respiratory diseases, especially for the elderly and children.

[0003] At present, the main method of road dust suppression is wet control. Although sprinkler dust suppression is easy to operate, it cannot play a good dust suppression effect due to the rapid evaporation of water. The existing dust suppressant has high brittleness and low strength in the film formed, and is not suitable for winter because it is easy to freeze in low temperature environment. Therefore, it is necessary to develop a dust suppressant with high film strength, low brittleness and suitable for low temperature environment. Contents of the invention

[0004] The purpose ...

Examples

Embodiment 1

[0014] Take 1g of calcium chloride, 0.5g of activated alumina, and 1g of sodium silicate and mix evenly, then add 1g of sodium dodecylbenzenesulfonate and 0.5g of water-based polyurethane-acrylic acid copolymer resin in sequence, then add 95.5g of water, and stir for 30 minutes Add 0.5 g of sodium lignosulfonate and continue to stir evenly to obtain the dust suppressant 1.

Embodiment 2

[0016] Take 1g of calcium chloride, 0.5g of activated alumina, and 1g of sodium silicate and mix evenly, then add 2g of sodium dodecylbenzenesulfonate and 2g of water-based polyurethane-acrylic copolymer resin in sequence, then add 92.5g of water, stir for 30 minutes, and then add 1g of sodium lignosulfonate, and continue to stir evenly to obtain the dust suppressant 2.

Embodiment 3

[0018] Take 3g of calcium chloride, 1.5g of activated alumina, and 3g of sodium silicate and mix evenly, then add 4g of sodium dodecylbenzenesulfonate and 4g of water-based polyurethane-acrylic acid copolymer resin in sequence, then add 82.5g of water, stir for 30 minutes, and then add 2g of sodium lignosulfonate, and continue to stir evenly to obtain the dust suppressant 3.

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