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Composition capable of reflecting sun heat radiation

A technology of heat radiation and composition, which is applied in the field of composition reflecting solar heat radiation, and can solve problems such as hindering the internal temperature from radiating outward, increasing the temperature of open-air equipment with metal casings, human work, and adverse effects on indoor environment comfort. , to achieve the effect of reducing building energy consumption, increasing temperature difference and low cost

Active Publication Date: 2010-12-29
三河方元绿洲节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a large amount of solar heat radiation will increase the temperature of open-air equipment with metal casings, which seriously hinders the internal temperature from radiating outward; Different degrees of adverse effects on the comfort of human work and indoor environment

Method used

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  • Composition capable of reflecting sun heat radiation
  • Composition capable of reflecting sun heat radiation
  • Composition capable of reflecting sun heat radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 Solvent-based solar heat radiation reflective coating

[0017] The solar heat radiation reflective coating comprises the following components by weight:

[0018] Acrylic resin 600 parts

[0019] Butyl acetate 60 parts

[0020] Dispersant 5 parts

[0021] 175 parts of rutile titanium dioxide

[0022] Zinc oxide 175 parts

[0023] Precipitated barium sulfate 50 parts

[0024] Dissolve the acrylic resin with dispersant and butyl acetate according to the above parts by weight, then add rutile titanium dioxide, zinc oxide and precipitated barium sulfate and disperse at high speed, and mix evenly to obtain the solvent-type solar heat radiation reflective coating. The reflectance of the paint is ≥86%, and the emissivity is ≥85%.

Embodiment 2

[0025] Example 2 Water-soluble solar heat radiation reflective coating

[0026] The solar heat radiation reflective coating comprises the following components by weight:

[0027] 150 parts of water

[0028] Synthetic resin emulsion 400 parts

[0029] 225 parts of rutile titanium dioxide

[0030] Zinc oxide 195 parts

[0031] Precipitated barium sulfate 100 parts

[0032] Dispersant 10 parts

[0033] Defoamer 8 parts

[0034] 1 part pH adjuster

[0035] Coalescing aid 25 parts

[0036] Thickener 5 parts

[0037] According to the above parts by weight, the above components are added and mixed evenly to obtain the water-soluble solar heat radiation reflective coating. The reflectance of the paint is ≥87%, and the emissivity is ≥88%. Since water is used as a solvent, this type of solar heat radiation reflective material is beneficial to environmental protection.

Embodiment 3

[0038] Example 3 Inspection results of technical indicators of solvent-based solar heat reflective coatings

[0039] The solvent-based solar heat reflective coating disclosed in the present invention is tested in accordance with the JC / T1040-2007 standard and the JG / T235-2008 standard for testing the performance indicators of heat insulation temperature difference and heat insulation temperature difference attenuation, as shown in Table 1.

[0040] Table 1

[0041]

[0042]

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PUM

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Abstract

The invention discloses a composition capable of reflecting sun heat radiation, which comprises 50 to 400 weight parts of rutile titanium dioxide, 50 to 280 weight parts of zinc oxide and 50 to 450 weight parts of precipitated barium sulfate. In the composition capable of reflecting the sun heat radiation, the reflectivity and hemispherical emissivity of the sun heat radiation can at least reach 85 percent on the premise of low cost and low energy consumption. The composition can be used for heat-insulating building materials such as coatings, sections and the like.

Description

technical field [0001] The present invention relates to a composition capable of reflecting solar thermal radiation. In particular, the present invention relates to a composition capable of reflecting solar heat radiation which can be used in coatings and insulating building materials. Background technique [0002] The solar thermal radiation energy reaches the earth's surface at about 750μ / m 2 , there are significant differences in different latitudes and seasons. Among them, <380nm is ultraviolet light, accounting for about 5% of heat energy; 380-760nm is visible light, accounting for about 46% of heat energy; 760-2500nm is infrared light, accounting for about 49% of heat energy. Especially in the 400-1750nm region, the main heat energy in the solar radiation is concentrated. While the sun brings light and warmth to human beings, it also brings a lot of troubles to human production and life. For example, a large amount of solar heat radiation will increase the tempe...

Claims

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Application Information

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IPC IPC(8): C09D5/33C09D133/00C09D163/00C09D167/08C09D167/00
Inventor 郭宪强李建忠
Owner 三河方元绿洲节能科技有限公司
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