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Rare earth modified nano coating for artificial precipitation enhancement spreader and preparation method thereof

A technology of rare earth modification and nano-coating, which is applied in the direction of anti-fouling/underwater coatings, coatings, paints containing biocide, etc., which can solve the problem of increasing the cleaning cost of artificial weather modification, increasing the workload of artificial weather modification, and affecting the activation cost. Cloud condensation nuclei ratio and other issues, to achieve the effect of simple preparation and coating methods, reduced cleaning workload, and quick follow-up rain enhancement operations

Inactive Publication Date: 2019-03-29
NANJING UNIV OF INFORMATION SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the combustion process of silver iodide, there will be incomplete combustion (especially the part in contact with the spreader), which will produce a large amount of organic matter adsorbed on the spreader
It has been found that most organic matter is non-hydrophilic and cannot be used as cloud condensation nuclei
If the organic matter attached to the spreader is not removed in time, it will be burned and discharged as a rain-enhancing catalyst during the sowing process, thereby reducing the production rate of silver iodide particles, affecting the rate of activation into cloud condensation nuclei, and further affecting artificial precipitation. influences
After the plane lands, manual cleaning is required to remove the attachment of these organic substances, which is a heavy task, which not only increases the workload of artificial weather modification, but also increases the cleaning cost of artificial weather modification.

Method used

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  • Rare earth modified nano coating for artificial precipitation enhancement spreader and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] First prepare an aqueous solution of about 1 mol / L titanium dioxide suspension and put it in a 4°C refrigerator. After the solution is stable, calibrate the concentration of the solution by gravimetric method. Add 1.0wt% rare earth nitrate according to stoichiometric amount, and form a transparent mixed solution after completely dissolving. Slowly add 7 mol / L ammonia solution to the mixed solution under strong mechanical stirring to adjust the pH value to 9.4. Continue to stir the reaction system at room temperature for 30 minutes in order to obtain a co-precipitation product with a uniform composition. The co-precipitation product is left to stand, centrifuged, and the precipitate is fully washed with 0.5mol / L dilute ammonia solution. After washing, the co-precipitation product is vacuumed at 70°C Dry for 24h and grind into powder. Then the dry powder was calcined in an electric furnace at 800 °C for 2 h, and then the sample was cooled to room temperature with the fur...

Embodiment 2

[0046] Rare earth doped modified titanium dioxide nanopowder was prepared according to the method in Example 1. Prepare each component according to the following mass percentages:

[0047] Rare earth doped modified titanium dioxide nanopowder 10%

[0048] Ethylene glycol 42%

[0049] Acrylic 34%

[0050] Sodium acrylate 0.4%

[0051] Benzyl alcohol 1%

[0052] Emulsified silicone oil 0.6%

[0053] Titanium dioxide 12%

[0054] Put the rare earth-doped modified titanium dioxide nanopowder and titanium dioxide into a high-speed disperser according to the ratio in the table and disperse for 60 minutes at a speed of 2000rpm. After taking it out, add it to the mixer, and slowly add ethylene glycol, acrylic resin, Sodium acrylate, benzyl alcohol, and emulsified silicone oil are stirred for 120 minutes to obtain a rare-earth modified nano-coating with self-cleaning function. The paint was applied to the airborne spreader according to the method of Example 1.

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Abstract

The invention discloses a rare earth modified nano coating for an artificial precipitation enhancement spreader and a preparation method thereof. The components of the rare earth modified nano coatingare rare earth doped modified titanium dioxide nano powder, ethylene glycol, acrylic resin, sodium acrylate, benzyl alcohol, emulsified silicone oil, and titanium dioxide; The rare earth modified nano coating is brushed onto the artificial precipitation enhancement spreader, and after solidification, the rare earth modified nano coating can effectively catalyze and decompose the organic adsorbategenerated due to insufficient combustion of the spreader. The aircraft reaches the purposes of automatically cleaning and decomposing the organic matters under the action of cloud passing and rainwashing.

Description

technical field [0001] The invention relates to the technical field, in particular to a rare-earth modified nano-coating for improving the self-cleaning function of an artificial rain-increasing spreader and a preparation method thereof. Background technique [0002] my country is a water-poor country, and the per capita water resources are less than 1 / 4 of the world's average level. The shortage of water resources has seriously affected the sustainable development of my country's society and economy. In response to the serious shortage of water resources, artificial rainfall enhancement is widely implemented in my country to develop and utilize aerial water resources. Under certain conditions, artificial rainfall enhancement by aircraft has a significant effect on solving natural disasters such as drought in the region. Aircraft artificial rainfall enhancement is an effective measure to develop and utilize cloud water resources in the air and resist drought. The effect of...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D5/16C09D7/61C09D7/63C09D7/65
CPCC09D4/06C09D5/1668C09D5/1687
Inventor 陈魁楚志刚董晓波杨洋吕峰蒋慧
Owner NANJING UNIV OF INFORMATION SCI & TECH