Composite snow melting deicing agent with effect of reducing freezing point and preparation method thereof

Abstract

The invention discloses a composite snow melting deicing agent with the effect of reducing a freezing point. Pomegranate rind and tea seed shells are swollen and filled with a phenolic resin emulsion so that cell walls are reinforced and gaps between the staggered fibers are filled and thus fiber bonding strength is improved. Through carbonization, more micropores are formed so that an adsorption capability is improved. A pyroligneous liquor replacing glacial acetic acid and modified magnesite powder as a calcium and magnesium predecessor are mixed to form a snow melting agent, the snow melting agent and an anti-skid assistant are coated and are subjected to granulation and the granules are dried to form the composite snow melting deicing agent. The composite snow melting deicing agent mainly contains calcium magnesium acetate, contains a small amount of low carbon mixed calcium magnesium carboxylates comprising calcium magnesium propionate and calcium magnesium formate, can fast reducing a freezing point after snow melting and can absorb heat and accelerate snow melting. The residual liquid can be adsorbed by the anti-skid assistant so that pavement corrosion is prevented. The preparation method of the composite snow melting deicing agent has a low cost, good product fluidity, no dust pollution, good snow melting effects and use convenience.

Description

technical field [0001] The invention relates to the technical field of snow-melting agents, in particular to a composite snow-melting and deicing agent capable of lowering the freezing point and a preparation method thereof. Background technique [0002] Ice and snow in winter are a factor that seriously affects transportation. Ice and snow on roads are an important safety hazard that affects traffic operations in winter in most parts of our country, which greatly reduces transportation capacity and is likely to cause traffic accidents. It has become a key problem that needs to be solved urgently for smooth traffic operation in winter in my country, and deicing agent is produced accordingly. [0003] As the name implies, deicing agent is a salt used to lower the freezing point of ice and snow. Its function is to melt snow and ice. Because of its simple use, good deicing and snow melting effect and many other advantages, it is mainly used as a base for urban roads, expressways...

AI Technical Summary

Problems solved by technology

[0005] At present, the existing deicing agent has two forms: powder and liquid. The liquid is sprayed on the ice and snow surface in an atomized manner to melt the ice and snow. It is evenly dispersed but easily penetrates into the road surface, which will cause certain corrosion damage. The powder form is directly sprinkled on the snow surface. It melts snow, but its strength is low and the density is small, and it is easy to be blown away by the wind, resulting in uneven dispersion and a decline in the snow-melting effect. It has good heat absorption and adsorption performance, accelerates the speed of snow melting and deicing, and has the characteristics of low corrosion, little pollution, little damage to plants, high comprehensive performance, multiple functions, and convenient storage.