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CN-121975490-A - Sustained-release snow-melting ice-melting material and preparation method thereof

CN121975490ACN 121975490 ACN121975490 ACN 121975490ACN-121975490-A

Abstract

The application relates to the technical field of snow melting and deicing materials, and particularly discloses a slow-release type snow melting and deicing material and a preparation method thereof. The slow release type snow melting and deicing material comprises a snow melting core material and a reinforced shell layer wrapped on the surface of the snow melting core material, wherein the snow melting core material is coffee grounds porous carbon powder loaded with snow melting components, and the reinforced shell layer comprises, by weight, 10-20 parts of polyurethane prepolymer, 10-20 parts of styrene-butadiene latex, 0.5-2 parts of cross-linking agent, 10-20 parts of rubber powder, 5-10 parts of reinforced fiber, 0.5-1 part of wetting dispersant and 1-2 parts of hydrophobing agent. The application can improve the compression resistance and wear resistance of the slow release type snow-melting and deicing material while maintaining the snow-melting and deicing speed of the slow release type snow-melting and deicing material, and is beneficial to reducing the breakage or pulverization of the snow-melting and deicing material in the process of storage or transportation.

Inventors

  • JIA KEXIN
  • GE HUIJUN
  • ZHAO HAOMING
  • WU WENLONG

Assignees

  • 江苏鸿淼智能交通科技有限公司

Dates

Publication Date
20260505
Application Date
20260127

Claims (8)

  1. 1. The slow release type snow melting and deicing material is characterized by comprising a snow melting core material and a reinforced shell layer wrapped on the surface of the snow melting core material, wherein the snow melting core material is coffee grounds porous carbon powder loaded with snow melting components, and the reinforced shell layer comprises, by weight, 10-20 parts of polyurethane prepolymer, 10-20 parts of styrene-butadiene latex, 0.5-2 parts of cross-linking agent, 10-20 parts of rubber powder, 5-10 parts of reinforced fibers, 0.5-1 part of wetting dispersant and 1-2 parts of water repellent agent according to the total weight of the reinforced shell layer.
  2. 2. The slow release snow-melting and deicing material according to claim 1, wherein the solid content of the polyurethane prepolymer and the styrene-butadiene latex is 40-50%.
  3. 3. The slow release snow-melting and deicing material according to claim 1, wherein said rubber powder is junked tire powder with a particle size of 40-80 meshes.
  4. 4. The slow release snow-melting and deicing material of claim 1, wherein said reinforcing fiber is aramid pulp.
  5. 5. The slow release snow-melting and deicing material according to claim 1, wherein the particle size of the porous carbon powder of the coffee grounds is 100-200 meshes.
  6. 6. A method for preparing a slow release type snow-melting and deicing material according to any one of claims 1 to 5, comprising the following steps: Uniformly mixing the polyurethane prepolymer, the styrene-butadiene latex, the wetting dispersant and the hydrophobic agent to obtain a treatment solution; uniformly mixing rubber powder, reinforcing fibers and snow melting core materials to obtain a dry mixture; spraying the treatment liquid into the dry mixture under stirring, spraying the cross-linking agent, uniformly stirring, and performing heat treatment at 80-110 ℃ for 30-60 minutes to obtain the slow-release type snow melting and deicing material.
  7. 7. The method for preparing a slow release type snow-melting and deicing material according to claim 6, wherein the snow-melting core material comprises 100 parts of coffee grounds porous carbon powder, 30-50 parts of composite inorganic salt and 1-3 parts of organic corrosion inhibitor.
  8. 8. The method for preparing a sustained-release snow-melting and deicing material according to claim 7, wherein the snow-melting core material is prepared by the following steps: Dissolving the composite inorganic salt and the organic corrosion inhibitor in water under the water bath condition of 40-60 ℃ to obtain an aqueous solution after complete dissolution; Immersing the coffee grounds porous carbon powder into the water solution under vacuum to obtain a suspension, and drying the suspension at 80-90 ℃ until the water content is 2-4wt% to obtain the snow melting core material.

Description

Sustained-release snow-melting ice-melting material and preparation method thereof Technical Field The invention relates to the technical field of snow-melting agent materials, in particular to a slow-release type snow-melting and ice-melting material and a preparation method thereof. Background Snow and ice in winter have serious influence on traffic safety and traffic efficiency. At present, the common method for melting snow and ice mainly comprises the modes of mechanical cleaning or manually spreading snow-melting agent and the like. The salt snow-melting agent such as sodium chloride has low cost and quick effect, but has short duration of snow-melting effect, needs to be scattered for many times, and increases manpower and resource consumption. Therefore, there is a need to develop a snow-melting agent having a long duration of snow-melting and ice-melting effects. The preparation method is characterized by comprising the following steps of S1, preprocessing coffee grounds, namely washing and drying the coffee grounds, grinding the coffee grounds, mixing the coffee grounds with ferric trichloride in water, carrying out high-temperature carbonization after drying to obtain coffee grounds carbides, S2, activating, namely mixing and grinding the coffee grounds carbides and chemical activating agents uniformly, carrying out high-temperature activation, cooling to room temperature, sequentially cleaning with dilute hydrochloric acid and deionized water to obtain the coffee grounds porous carbon material, and S3, preparing the snow melting and deicing material, namely grinding and sieving the coffee grounds porous carbon material, mixing the coffee grounds porous carbon material with supersaturated inorganic salt solution, drying, mixing the coffee grounds porous carbon material with a hydrophobic surface modifier, and drying to obtain the slow-release snow melting and deicing coffee grounds porous carbon material. However, the porous carbon matrix of the coffee grounds is relatively fragile in nature and is susceptible to breakage or pulverization during storage or handling. Disclosure of Invention In order to improve the compression resistance and the wear resistance of the snow-melting and deicing material taking the coffee grounds as the matrix and reduce the breakage or pulverization of the snow-melting and deicing material in the process of storage or transportation, the application provides a slow-release type snow-melting and deicing material and a preparation method thereof. In a first aspect, the application provides a slow release type snow melting and deicing material, which adopts the following technical scheme: The slow release type snow melting and deicing material comprises a snow melting core material and a reinforced shell layer wrapping the surface of the snow melting core material, wherein the snow melting core material is coffee grounds porous carbon powder loaded with snow melting components, and the reinforced shell layer comprises, by the total weight of the reinforced shell layer, 10-20 parts of polyurethane prepolymer, 10-20 parts of styrene-butadiene latex, 0.5-2 parts of cross-linking agent, 10-20 parts of rubber powder, 5-10 parts of reinforced fiber, 0.5-1 part of wetting dispersant and 1-2 parts of water repellent agent. In a specific embodiment, the solids content of the polyurethane prepolymer and the styrene-butadiene latex are both 40-50%. In a specific embodiment, the rubber powder is scrap tire powder having a particle size of 40-80 mesh. In a specific embodiment, the reinforcing fiber is an aramid pulp. In a specific embodiment, the porous carbon powder of the coffee grounds has a particle size of 100-200 mesh. In a second aspect, the application provides a preparation method of a slow release type snow melting and deicing material, which adopts the following technical scheme: A preparation method of a slow release type snow melting and deicing material comprises the following steps: Uniformly mixing the polyurethane prepolymer, the styrene-butadiene latex, the wetting dispersant and the hydrophobic agent to obtain a treatment solution; uniformly mixing rubber powder, reinforcing fibers and snow melting core materials to obtain a dry mixture; spraying the treatment liquid into the dry mixture under stirring, spraying the cross-linking agent, uniformly stirring, and performing heat treatment at 80-110 ℃ for 30-60 minutes to obtain the slow-release type snow melting and deicing material. In a specific embodiment, the snow melting core material comprises 100 parts of coffee grounds porous carbon powder, 30-50 parts of composite inorganic salt and 1-3 parts of organic corrosion inhibitor. In a specific embodiment, the snow-melting core material is prepared by dissolving a composite inorganic salt and an organic corrosion inhibitor in water under the water bath condition of 40-60 ℃ to obtain an aqueous solution after complete dissolution; Immersing the coffee grounds porous