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Preparation method of heat-shielding coating for road

A heat-shielding and coating technology, applied in coatings, metal material coating processes, roads, etc., can solve problems such as driving safety impacts, and achieve the effect of stable chemical properties and fine particles

Pending Publication Date: 2020-09-15
黄海千
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Impact on driving safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In terms of parts by weight, weigh 20 parts of aluminum powder, 30 parts of zinc oxide powder, 10 parts of silicon powder, 5 parts of carbon powder, 20 parts of urea, and 100 parts of deionized water. , carbon powder, urea and deionized water were mixed, ball milled for 30 minutes at a speed of 400r / min to obtain a mixed slurry, and the mixed slurry was dried and granulated at a temperature of 80°C in the form of small droplets to obtain Semi-finished products; in N 2 Spray and quench the semi-finished product as the powder feeding gas, the receiving medium is ordinary tap water, the preheating temperature is 210°C, the gas-powder mass flow rate ratio is 9, the spraying distance is 220mm, and the hollow ceramic microspheres are obtained after cooling to room temperature. ;Place tin oxide in a mold with a diameter of 62mm, press it under a pressure of 10MPa for 1min to obtain a green body, place the green body at a temperature of 1200°C for 1h, and cool to room temperatu...

Embodiment 2

[0036] In terms of parts by weight, weigh 25 parts of aluminum powder, 35 parts of zinc oxide powder, 15 parts of silicon powder, 10 parts of carbon powder, 25 parts of urea, and 110 parts of deionized water. , carbon powder, urea and deionized water were mixed, and ball milled for 35 minutes at a speed of 450r / min to obtain a mixed slurry. The mixed slurry was dried and granulated at a temperature of 90°C in the form of small droplets to obtain Semi-finished products; in N 2 Spray and quench the semi-finished product as the powder feeding gas, the receiving medium is ordinary tap water, the preheating temperature is 215°C, the gas-powder mass flow rate ratio is 9, the spraying distance is 225mm, and the hollow ceramic microspheres are obtained after cooling to room temperature. ;Place tin oxide in a mold with a diameter of 63mm, press it at a pressure of 13MPa for 2 minutes to obtain a green body, place the green body at a temperature of 1225°C for 1.5h, and cool to room temp...

Embodiment 3

[0038] In terms of parts by weight, weigh 30 parts of aluminum powder, 40 parts of zinc oxide powder, 20 parts of silicon powder, 15 parts of carbon powder, 30 parts of urea, and 120 parts of deionized water. , carbon powder, urea and deionized water were mixed, ball milled for 40 minutes at a rotational speed of 500r / min to obtain a mixed slurry, and the mixed slurry was dried and granulated at a temperature of 100°C in the form of small droplets to obtain Semi-finished products; in N 2 Spray and quench the semi-finished product as powder feeding gas. The receiving medium is ordinary tap water. The preheating temperature is 220°C. ;Place tin oxide in a mold with a diameter of 65mm, and press it under a pressure of 15MPa for 3 minutes to obtain a green body, place the green body at a temperature of 1250°C for 2 hours, and cool to room temperature to obtain a target; Hollow ceramic microbeads are used as the substrate, and the working gas is oxygen and argon. The substrate is ...

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Abstract

The invention relates to a preparation method of a heat-shielding coating for a road, and belongs to the technical field of coating materials. Aluminum powder, zinc oxide powder, silicon powder and carbon powder are used as raw materials, a hollow ceramic microbead is prepared through a reaction thermal spraying technology, and Al<3+> is dissolved in ZnO to form oxygen vacancies to make free carriers generated, so when a light source irradiates the surface of the transparent heat-shielding coating, the carriers can absorb part of heat radiation, and the other part of the heat radiation is reflected by plasmas; the frequency of the incident light source is lower than the inherent frequency of plasma oscillation, so that the barrier effect of the coating on heat radiation is the result of the combined action of absorption and reflection, the absorption and reflection jointly play a role in shielding infrared light, and the coating has good heat insulation performance; and tin is used asa target material, and a layer of tin oxide film is sputtered on the surfaces of the hollow ceramic microbeads to be used as a heat shielding filler, so that the conductivity of the coating can be improved, the electrostatic accumulation on the surface of the coating is inhibited, and a certain effect on cleaning the surface of the coating is achieved.

Description

technical field [0001] The invention relates to a preparation method of a heat-shielding coating for roads, and belongs to the technical field of coating materials. Background technique [0002] With the development of social civilization and economy, cities have gradually become areas where human activities are relatively concentrated and prosperous, thus making the scale of urban construction and development continuously expand. The development speed and scale of urban industrialization have become an important symbol of a country's social civilization, economic development and advanced productivity. The rapid development of urbanization has brought a series of negative problems while improving people's living environment. Among them, the heat island effect 0 is one of the more prominent ones. [0003] The urban / heat island effect is the phenomenon in which urban temperatures are significantly higher than those in the outer suburbs. On the near-surface temperature map, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/32C09D5/24C23C14/34E01C7/35E01C11/24
CPCC09D5/24C09D5/32C09D163/00C23C14/3435E01C7/35E01C11/24C08K13/06C08K9/02C08K7/26C08K5/17
Inventor 黄海千
Owner 黄海千
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