Preparation method of liquid dust suppressant capable of rapidly forming film

Abstract

The invention discloses a preparation method of a liquid dust suppressant capable of rapidly forming a film and belongs to the field of dust suppressants. Sodium alginate and kelp cellulose are extracted from kelp respectively, kelp cellulose is grafted with acrylic acid and dimethyl diallylammonium chloride, reactants of sodium alginate and polyvinyl alcohol are compounded after grafting, a surfactant is added after compounding, and the dust suppressant can be obtained. The prepared dust suppressant has the effects of water absorption, permeation and bonding and is mixed with water and then sprayed to a pavement, water molecules in air can be absorbed, a wet and nonvolatile water retention film is formed on the pavement rapidly, the film forming time is 20-50 s, the purpose of dust flying inhibition is achieved, the rapidly formed continuous and complete film can resist wind and rainwater and can have a protection function on the pavement, raw materials of the dust suppressant are environment-friendly and easy to degrade, and no secondary pollution is caused.

Description

technical field [0001] The invention discloses a preparation method of a fast film-forming liquid dust suppressant, belonging to the field of dust suppressants. Background technique [0002] The air quality of most cities in my country is affected by three major factors: coal-burning smoke exhaust, motor vehicle exhaust, and ground dust. Coal smoke and dust pollution dominate during the heating period, and the proportion of motor vehicle exhaust and dust pollution gradually increases during the non-heating period. Dust is a pollution source that leads to poor air quality throughout the year and is difficult to control. my country has a long history of research on stationary industrial pollution sources, especially particulate matter emitted from energy combustion and production processes, and has a relatively complete set of testing, treatment, and management methods. However, there is no systematic research on the dust pollution and control of open dust sources, such as co...

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Problems solved by technology

[0004] The technical problem that the present invention mainly solves: for the traditional road surface dust prevention method is to use sprinkler to sprinkle water high temperature summer moisture evaporates and infiltrates quickly and cannot effectively prevent dust, solid dust suppressant dust suppression effect is poor, dust suppression period is short, liquid suppresses To solve the problem of short film-forming time of dust, a preparation method of fast film-forming liquid dust suppressant is provided. The present invention extracts sodium alginate and kelp cellulose from kelp respectively, and first grafts kelp cellulose with acrylic acid and dimethyl Diallyl ammonium chloride, the reactant of sodium alginate and polyvinyl alcohol compounded after grafting, and the dust suppressant can be obtained by adding surfactant after compounding. The dust suppressant prepared by the present invention has the properties of water absorption, penetration , bonding effect, mixed with water and sprayed on the road surface, not only can absorb water molecules in the air, quickly form a moist, non-volatile water-retaining film on the road surface, to achieve the purpose of suppressing dust, and the rapid formation of continuous complete film can be It can resist wind and rain, and can protect the road surface. The raw materials of the dust suppressant are green and easy to degrade, and there is no secondary pollution