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Paint with spectral selectivity, preparation method, and application

A selective, coating technology, used in coatings, devices for coating liquids on surfaces, textiles and papermaking, etc., can solve the problems of high production cost of coatings, difficult to obtain microspheres, complex process, etc., and achieve easy stirring and mixing. , Resist the effect of solar infrared heat, simple production process

Active Publication Date: 2007-12-26
北京北洋华诚新能源科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the process of preparing this coating is complicated: the added microspheres have a larger particle size and are easily damaged during stirring; said microspheres are difficult to obtain and the production price is expensive, which makes the production cost of the coating extremely high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) By weight, use 10kg of distilled water and 21kg filler (the filler is a mixture of 6kg titanium dioxide, 5kg heavy calcium powder, 5kg wollastonite and 5kg talcum powder), mix in a mixing tank,

[0045] (2) Grinding by a grinder to make a color paste,

[0046] (3) Add 20kg of hollow ceramic microbeads, 35kg of acrylate copolymer, 6.7kg of auxiliary materials (the auxiliary materials are a mixture of 0.1kg of yttrium-based rare earth, 6kg of isothiolinone and 0.6kg of organic silicon), 10kg of distilled water, and put it into a paint mixer. reconcile,

[0047] (4) After blending, enter the filter to filter,

[0048] (5) Finally enter the canning machine for packaging to get the finished product.

[0049] The resulting coating is applied to the surface of textile materials to make thermal and sun-resistant curtains.

Embodiment 2

[0051] Basically the same as Example 1, the difference is that the filler is: 2kg titanium dioxide, 2kg heavy calcium powder, 2kg wollastonite, 15kg talcum powder.

Embodiment 3

[0053]Basically the same as Example 1, the difference is that the filler is: 15kg titanium dioxide, 2kg heavy calcium powder, 2kg wollastonite, 2kg talcum powder.

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PUM

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Abstract

This invention relates to a method for preparing spectrum-selective coating. The spectrum-selective coating is composed of acrylate copolymer or silicone acrylate copolymer as the matrix, titanium dioxide powder, heavy calcium powder, wollastonite and talcum powder as the fillers, hollow microbeads as the additive, and preservative, emulsifier and dofoamer as the auxiliary materials. Both the reflectivity of the spectrum-selective coating in 0.2-2.8 mu.m wave band and the emissivity in 8-13.5 mu.m wave band are higher than 80%. The spectrum-selective coating can cool the surface of the coated object by using the space coating energy, and has good heat insulating function. The spectrum-selective coating has such advantages as simple process, and good radiation cooling effect.

Description

Technical field [0001] The invention relates to a coating, in particular to a spectrally selective coating which reflects and emits specific wavelengths, its preparation method and application. Background technique: [0002] In hot summer, how to reduce the indoor temperature on the top floor of a building is a problem that must be considered. At present, the indoor temperature is mostly adjusted by air conditioners, which consumes a large amount of electric energy. In many countries, the energy used for heating in winter and air conditioning in summer accounts for more than 20% of the total annual energy consumption. Therefore, how to use a new method to adjust the indoor temperature and reduce the energy consumption of air conditioning has become a research hotspot. [0003] It is undoubtedly a convenience to reflect the visible light and infrared rays with the most concentrated heat energy in the hot summer sun, thereby reducing the amount of heat absorption, and at the...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D183/07B05D7/14D06N3/00
Inventor 陈庆洪陈东东
Owner 北京北洋华诚新能源科技发展有限公司
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