Preparation method of thermal infrared shielding coating material

A shielding coating and thermal infrared technology, applied in coatings, reflective/signal coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor cooling effect, short service life, poor vibration resistance, etc., and achieve simple production process, Broad market prospects, the effect of reducing energy consumption

Inactive Publication Date: 2016-09-07
郭迎庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of thick insulation layer, poor vibration resistance, short service life and poor cooling effect in the process of preparation and use of traditional cooling coatings, although it can slow down but cannot block heat transfer, a thermal infrared shielding Preparation method of coating material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Weigh 800g of fly ash, 60g of quicklime and 60g of natural dihydrate gypsum in turn, add them into a beaker filled with 1000mL of deionized water, stir evenly with a glass rod, transfer the beaker into a steamer, and cook at 85°C 2h, discharge the material, pour the slurry in the beaker on the stone grinding disc, grind for 6min, collect the ground material, transfer it to a 105°C oven, dry it to constant weight, and then pass it through a 325-mesh sieve after grinding in a mortar , to obtain activated fly ash; take 300g magnesite by weighing, add in the universal pulverizer, sieve after pulverizing, collect 400 mesh magnesite powder, after mixing with 800g above-mentioned obtained activated fly ash, the mixture is transferred to tube In a resistance furnace, the temperature was gradually raised to 700°C at a rate of 8°C / min, and after holding for 30 minutes, the temperature was continued to rise to 1200°C at a rate of 6°C / min, and the reaction was held for 3 hours. Afte...

example 2

[0023]Weigh 850g of fly ash, 70g of quicklime and 70g of natural dihydrate gypsum in sequence, add them into a beaker filled with 1200mL of deionized water, stir evenly with a glass rod, transfer the beaker into a steamer, and cook at 90°C 3h, discharge the material, pour the slurry in the beaker on the stone grinding disc, grind for 7min, collect the ground material, transfer it to a 108°C oven, dry it to constant weight, and then pass it through a 325-mesh sieve after grinding in a mortar , to obtain activated fly ash; Weigh 350g magnesite, add in the universal pulverizer, sieve after crushing, collect 400 mesh magnesite powder, mix with 860g above-mentioned obtained activated fly ash, then transfer the mixture into tube In a resistance furnace, the temperature was gradually raised to 710°C at a rate of 9°C / min, and after holding for 40 minutes, the temperature was continuously raised to 1220°C at a rate of 7°C / min, and the temperature was kept for 4 hours. After cooling to r...

example 3

[0026] Weigh 900g of fly ash, 80g of quicklime and 80g of natural dihydrate gypsum in sequence, add them into a beaker filled with 1500mL of deionized water, stir evenly with a glass rod, transfer the beaker into a steamer, and cook at 95°C 4h, discharge the material, pour the slurry in the beaker on the stone grinding disc, grind for 8min, collect the ground material, transfer it to a 110°C oven, dry it to constant weight, and then pass it through a 325-mesh sieve after grinding in a mortar , to obtain activated fly ash; take 400g magnesite by weighing, add in the universal pulverizer, sieve after pulverizing, collect 400 order magnesite powder, after mixing with 900g above-mentioned gained activated fly ash, the mixture is transferred to tube In the electric resistance furnace, the temperature was gradually raised to 720°C at a rate of 10°C / min, and after holding for 45 minutes, the temperature was continuously raised to 1250°C at a rate of 8°C / min, and kept for 5 hours. Afte...

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Abstract

The invention discloses a preparation method of a thermal infrared shielding coating material and belongs to the field of coating material synthesis. According to the invention, quick lime and gypsum are adopted to erode coal ash microspheres under the heating condition, so that partial defect is formed on the surface to be activated, and then the coal ash microspheres are sintered together with magnesite at high temperature to produce porous stone powder, and the porous stone powder is mixed with a metallic oxide and subjected to earthworm fermentation, then is uniformly mixed, and then is uniformly mixed with acetic ether and polyurethane resin, thus obtaining the finished product. According to the invention, the spherical structure of hollow glass beads in coal ash are used for reflecting sunlight, so as to reduce sunlight absorption; and after earthworm fermentation, the microbial respiratory action in earthworm enables the interior of the microspheres to be rich in air, and an effective heat barrier is formed in the coating, so that the cooling effect is greatly improved, and after combination with sintering of magnesite, the expansion coefficient is reduced, the thermal shock resistant stability is improved, and the service life is prolonged.

Description

technical field [0001] The invention discloses a preparation method of a thermal infrared shielding coating material, which belongs to the field of coating material synthesis. Background technique [0002] Solar energy is one of the necessary conditions for human life. The solar energy radiated to the surface of the earth per second is about 750W / m 2 At present, human beings are actively developing solar energy to save the limited non-renewable resources on the earth. More than two-thirds of my country's land area has more than 2,200 hours of sunshine per year. The strong radiation of the sun makes the surface temperature of objects too high, which brings many problems and inconveniences to industrial production and daily life. At present, a large number of municipal constructions in cities have caused the heat island effect to become more and more obvious. As a result, the temperature in the urban area is 3-5 °C higher than the ambient temperature. The comfort of the liv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/33C09D7/12
CPCC09D175/04C08K3/22C08K3/36C08K9/02C08K13/06C08K2003/222C08K2003/2227C08K2201/014C09D5/004C09D7/62
Inventor 郭迎庆许博伟
Owner 郭迎庆
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