Deep-color super-hydrophobic infrared-reflection thermal insulation coating and preparation method thereof

A heat-insulating coating and super-hydrophobic technology, applied in the field of coatings, can solve the problems of difficulty in meeting the requirements of the colorfulness of the coating, the anti-infrared effect is not durable, and the stain resistance is poor, and achieves good self-cleaning effect, construction and environmental friendliness, Improve the appearance of beautiful effect

Inactive Publication Date: 2018-06-19
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the white coating has the best anti-infrared heat insulation effect (patent 201210050385.3, patent 201410590778.2, patent 201610795198.6), it is easy to cause white light pollution when applied to building exterior walls and roofs. At the same time, there are problems of poor stain resistance and long-lasting anti-infrared effect. At the same time, white is also difficult to meet the requirements of architecture for the colorfulness of the coating

Method used

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  • Deep-color super-hydrophobic infrared-reflection thermal insulation coating and preparation method thereof
  • Deep-color super-hydrophobic infrared-reflection thermal insulation coating and preparation method thereof
  • Deep-color super-hydrophobic infrared-reflection thermal insulation coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] To 20g ethanol, add 0.4g nano-SiO 2 (Zhejiang Wanjing New Material Co., Ltd., SP-30, average particle size 30nm, the same below, commonly known as white carbon black) and 50g of water, add 1g of γ-aminopropyltriethoxysilane (KH-550, Shanghai Aladdin Biochemical Technology Co., Ltd., the same below), 0.8g heptadecafluorodecyltriethoxysilane (FAS-17, Quanzhou Sikang New Material Co., Ltd., the same below) and 10 drops of dilute hydrochloric acid (3.7wt% Aqueous hydrochloric acid solution, the same below) is used to make the solution weakly acidic (pH ~ 4, the same below), stir for 2 hours to hydrolyze the siloxane, and prepare nano-SiO 2 / Composite sol of fluorosilica sol.

[0036] Add 0.6g AB-EP-51 type epoxy resin and 0.48g AB-HGA type curing agent (Zhejiang Anbang New Material Co., Ltd., the same below) to the above-mentioned composite sol, continue to stir for 15min, and then add 7g "cooler" "Black pigment (30C941, U.S. Schett Pigment Company, particle diameter 1 μm...

Embodiment 2

[0040] Others are the same as in Example 1, except that the amount of the "cool" black pigment is changed to 3.5 g (the solid content of the cool pigment in the paint is ~4.5wt%). The infrared reflectance of the resulting coating is shown in Figure 4 . The surface of the super-hydrophobic cool coating exhibits typical super-hydrophobic properties. The mechanical properties are shown in Table 1.

Embodiment 3

[0042] Others are the same as in Example 1, changing the amount of "cool" black pigment to 14g (solid content of cool pigment in coating ~ 16wt%). The infrared reflectance of the resulting coating is shown in Figure 4 . The surface of the super-hydrophobic cool coating exhibits typical super-hydrophobic properties. The mechanical properties are shown in Table 1.

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Abstract

The invention discloses deep-color super-hydrophobic infrared-reflection thermal insulation coating. The deep-color super-hydrophobic infrared-reflection thermal insulation coating is characterized inthat a method of the deep-color super-hydrophobic infrared-reflection thermal insulation coating comprises the following steps: uniformly mixing a water solution of ethanol, nano silicon dioxide particles, hybridized siloxane and fluorine-containing siloxane; regulating the pH (Potential of Hydrogen) value to 3 to 5 by utilizing dilute hydrochloric acid and stirring and reacting for 1 to 5h; adding waterborne epoxy resin and a waterborne curing agent into a reaction solution; after uniformly stirring, adding an infrared-reflection pigment and uniformly mixing to obtain the deep-color super-hydrophobic infrared-reflection thermal insulation coating. A deep-color super-hydrophobic infrared-reflection thermal insulation coating layer prepared by the method has high infrared reflectivity on solar radiation; the surface temperature of the coating layer can be greatly reduced; when the deep-color super-hydrophobic infrared-reflection thermal insulation coating is used on an outer wall or aroof, the indoor temperature can be effectively reduced, so that the building energy saving effect is realized. Meanwhile, the surface is super-hydrophobic so that the thermal insulation coating layerhas a good rainwater self-cleaning effect, and the service life and the appearance beauty of the coating layer are greatly improved; the coating is aqueous and is very environmentally friendly to construction and environment.

Description

(1) Technical field [0001] The invention relates to the technical field of coatings, in particular to a dark superhydrophobic anti-infrared heat-insulating coating and a preparation method thereof. (2) Background technology [0002] With the continuous development of social economy, my country's building energy consumption is increasing day by day. A major focus of building energy saving is building heat insulation. In the field of building heat insulation, anti-infrared heat insulation coatings are indispensable. Although the white coating has the best anti-infrared heat insulation effect (patent 201210050385.3, patent 201410590778.2, patent 201610795198.6), it is easy to cause white light pollution when applied to building exterior walls and roofs. At the same time, there are problems of poor stain resistance and long-lasting anti-infrared effect. At the same time, white is also difficult to meet the requirements of architecture for the colorfulness of the coating. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/33C09D5/16C09D7/62C09D7/61
Inventor 冯杰林伟强张伟成张静
Owner ZHEJIANG UNIV OF TECH
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