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Natural partition lanthanum cerium oxide reflective heat-insulation color paste and preparation method thereof

A technology of lanthanum cerium oxide and cerium oxide, which is used in reflection/signal coatings, pigment pastes, paints containing biocides, etc., can solve the problems of gel, coating cracks, limit the application of water-based coatings, etc., and achieve thermal insulation. Excellent performance, high near-infrared reflectivity, remarkable effect of antibacterial and antifungal effect

Pending Publication Date: 2021-12-24
TIANJIN BAOGANG RES INST OF RARE EARTHS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since lanthanum oxide is prone to hydrolysis and absorbs carbon dioxide in the air, adding lanthanum oxide to water-based paints tends to form gels and cause coating cracks, which limits its application in water-based paints

Method used

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  • Natural partition lanthanum cerium oxide reflective heat-insulation color paste and preparation method thereof
  • Natural partition lanthanum cerium oxide reflective heat-insulation color paste and preparation method thereof
  • Natural partition lanthanum cerium oxide reflective heat-insulation color paste and preparation method thereof

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Experimental program
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preparation example Construction

[0041] The preparation method of natural distribution of lanthanum cerium oxide reflective thermal insulation color paste in the embodiment comprises the following steps:

[0042] (1) Stir the natural distribution lanthanum cerium oxide, dispersant, defoamer, and deionized water to pre-disperse the mixed slurry, put the mixed slurry into a sand mill and grind until the natural distribution lanthanum cerium oxide D (90) is 1.8μm;

[0043] (2) The above-mentioned slurry and thickener were stirred at a high speed of 550 rpm in a high-speed disperser, and a pH regulator was added to disperse at a high speed of 400 rpm to obtain a reflective heat-insulating natural distribution lanthanum cerium oxide color paste.

[0044] The raw material proportioning of embodiment 1-5 and comparative example sees the following table:

[0045] Table 1 Embodiment 1-5 color paste and comparative example 1 color paste formula table (percentage)

[0046]

[0047] The color paste that embodiment 1...

Embodiment 6

[0052] The preparation method of the color paste in this example is as follows: 60% of the naturally distributed lanthanum cerium oxide, 0.7% of the dispersant, 1.0% of the defoamer, and 37.3% of deionized water are stirred for pre-dispersion according to the mass percentage, and pumped into the sand mill Machine grinding until the natural distribution of lanthanum cerium oxide D (90) is 1.8 μm; the above-mentioned slurry, 0.6% thickener, and 0.2% inorganic yellow slurry are stirred at a high speed of 550 rpm for 10 minutes in a high-speed disperser, and 0.2% of a pH regulator is added at a speed of 10 minutes. 400rpm high-speed dispersion for 5 minutes.

Embodiment 7

[0059] The preparation method of the color paste in this embodiment is as follows: according to the mass percentage, 45% of the naturally distributed lanthanum cerium oxide slurry, 5% of rutile titanium dioxide, 5% of filler, 6% of hollow glass microspheres, and water-based pure acrylic emulsion 30%, 2% of additives, and 7% of water are stirred and mixed at high speed in a disperser to obtain a reflective heat-insulating coating with natural distribution of lanthanum cerium oxide as the main pigment.

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Abstract

The invention provides a natural partition lanthanum cerium oxide reflective heat-insulation color paste and a preparation method thereof. The natural partition lanthanum cerium oxide reflective heat-insulation color paste comprises the following components by 100 parts by weight: 50-70 parts of natural partition lanthanum cerium oxide, 0.5-1.0 part of a dispersant, 0.5-2.0 parts of a defoaming agent, 0.2-1.0 part of a thickening agent, 0.1-0.3 part of a pH regulator, and 26-49 parts of deionized water. According to the color paste prepared by the invention, single natural partition lanthanum cerium oxide is used as a reflective heat-insulation material, the color paste has high near-infrared reflectivity and excellent heat-insulation performance, the surface temperature and the internal temperature of a building can be effectively reduced by adding the color paste into basic paint, and a new choice is provided for a reflective material.

Description

technical field [0001] The invention belongs to the field of water-based color paste, and in particular relates to a naturally partitioned lanthanum-cerium oxide reflective heat-insulating color paste and a preparation method thereof. Background technique [0002] In order to reduce the temperature of the surface and interior of buildings under sunlight, reduce air-conditioning costs and carbon emissions, white reflective heat-insulating coatings with rutile-type titanium dioxide as the main pigment have been vigorously developed. The disadvantages of titanium dioxide are its high price and few colors. [0003] Naturally partitioned lanthanum cerium oxide is a mixed oxide of naturally partitioned lanthanum oxide and cerium oxide in Baotou Baiyun Obo rare earth concentrate, with a high abundance and a mass content of 77%. It is an upstream product of high-purity lanthanum oxide and cerium oxide with low price. There is a huge backlog of products. Naturally partitioned lanth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00C09D5/33C09D5/14
CPCC09D17/007C09D17/001C09D5/004C09D5/14
Inventor 张呈祥张秀荣温永清张光睿李璐赵长玉郝先库彭维周鑫喆王安丽
Owner TIANJIN BAOGANG RES INST OF RARE EARTHS
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