High-efficiency dust suppressant for urban roads

Abstract

The invention discloses a high-efficiency dust suppressant for urban roads. The dust suppressant consists of the following components in percentage by mass: 0.1-40 % of water retaining agent, 0.1-40 %of adhesive, 0.1-5.0 % of wetting agent, 0.01-5 % of accelerator, and 20-80 % of water. The accelerator and the adhesive contained in the dust suppressant have more reaction sites, wherein the accelerator can react with main effective adhesive substances for curing reaction crosslinking in the process of spraying and drying of the dust suppressant, and thus the bonding effect of the adhesive is enhanced, the acting force between dust is strengthened, and a combination, which finally forms, has stronger material strength, and can resist the shearing force and pressure of vehicles on the road surface to a greater extent, so that the dust suppression effect is enhanced. The water retaining agent in the dust suppression agent is a high-efficiency water-absorbing substance, ensures the road surface to keep a certain water content, and can be matched with the wetting agent to adapt to different environments in different regions and ensure the dust suppression effect of the roads.

Description

technical field [0001] The invention relates to the field of dust suppressants, in particular to a high-efficiency urban road dust suppressant which can realize reaction curing and cross-linking in the spraying process. Background technique [0002] Generally, dust particles within 100 μm are called floating dust. The particle size of floating dust is small and light. It can reach a balance under the action of gravity and buoyancy, so it can float in the atmosphere for a long time and is difficult to be absorbed naturally. Therefore, the enrichment of many pollutants is the main contributor to dust pollution. Particles with a particle size of less than 2.5 μm can directly enter the lungs through the human respiratory tract, which is very harmful to human health and is an important indicator of air quality. When the particle size of dust particles is greater than 100 μm, after a period of settlement, the dust can fall to the surface to form dustfall. In different regions, th...

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Problems solved by technology

[0005] However, the current domestic dust suppressants mainly use the water retention effect of salt, which is not suitable for different regions and the dust suppression effect is not good.

CN106590535A uses urea, gypsum and other substances as dust suppressants, which need to be ground into powder for production, and the spraying process is difficult; the dust suppressants designed in CN106957633A and CN106085360A are mainly carried out by bonding, but rely solely on simple chemical substances The effect of its dust suppression effect is difficult to resist the impact of vehicle shear force on the road

The dust suppressant in CN107216856A is more friendly to the environment, but the effect of the film-forming agent requires a certain humidity as the condition basis