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High-efficiency non-stick dust hydrophobic coating for wood, metal and plastic surfaces and preparation method thereof

A hydrophobic coating and metal technology, applied in antifouling/underwater coatings, polyether coatings, coatings, etc., can solve the problem of poor non-stick dust effect of the coating, short duration of the non-stick layer, and reduced photocatalytic effect and other problems, to achieve excellent hydrophobicity, improve non-stick performance, and good non-stick performance

Active Publication Date: 2020-08-18
青岛中氟氟碳材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the photocatalytic efficiency of nano-titanium dioxide is low, without the synergy and protection of other materials, it is very easy to be shielded or polluted to reduce its photocatalytic effect, resulting in poor non-stick dust effect of the coating and short non-stick layer duration.

Method used

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  • High-efficiency non-stick dust hydrophobic coating for wood, metal and plastic surfaces and preparation method thereof
  • High-efficiency non-stick dust hydrophobic coating for wood, metal and plastic surfaces and preparation method thereof
  • High-efficiency non-stick dust hydrophobic coating for wood, metal and plastic surfaces and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Raw material formulations for highly effective non-stick, dust-repellent and hydrophobic coatings on wood, metal and plastic surfaces:

[0036] Table 1 Embodiment 1 formula

[0037]

[0038] Preparation process: Add 79.4g of absolute ethanol and 2g of titanium sol in sequence to a four-necked flask, and stir at 70°C for 1 hour to disperse the raw materials evenly. After the desired titanium sol was obtained, it was taken out and cooled to room temperature. Disperse 1g of fluoropolymer nanoparticles in 16g of absolute ethanol, add dropwise to the titanium sol, and add 0.5g of 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 0.5g of acetylacetone, 0.5g propylene glycol monomethyl ether and 0.1g wetting agent TEGO-245, stirred at room temperature for 1 hour, filtered and packaged.

[0039] Coating performance: the appearance is light blue and transparent, the viscosity is about 1mPa.s, and the solid content is 4.6%;

[0040] Construction and drying: Prepare the coating on ...

Embodiment 2

[0049] Raw material formulations for highly effective hydrophobic and non-stick coatings on wood, metal and plastic surfaces:

[0050] Table 4 Example 2 formula

[0051]

[0052] Preparation process: Add 80.4g of absolute ethanol and 2.0g of titanium sol in sequence to a four-necked flask, and stir at 70°C for 1 hour to disperse the raw materials evenly. After the desired titanium sol was obtained, it was taken out and cooled to room temperature. Disperse 1g of fluoropolymer nanoparticles in 16g of absolute ethanol, add dropwise to the titanium sol, and add 0.5g of 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 0.5g of triethanolamine, 0.5 g isopropanol and 0.1 g wetting agent TEGO-750, stirred at room temperature for 1 hour, filtered and packaged.

[0053] Coating performance: the appearance is light blue and transparent, the viscosity is about 1mPa.s, and the solid content is 3.6%;

[0054] Construction and drying: Prepare the coating on the ABS fan blade by spraying; fir...

Embodiment 3

[0059] Raw material formulations for highly effective hydrophobic and non-stick coatings on wood, metal and plastic surfaces:

[0060] Table 6 Example 3 formula

[0061]

[0062] Preparation process: Add 79.9g of absolute ethanol and 2.0g of titanium sol in sequence to a four-necked flask, and stir at 70°C for 1 hour to disperse the raw materials evenly. After the desired titanium sol was obtained, it was taken out and cooled to room temperature. Disperse 1.0g of fluoropolymer nanoparticles in 15g of absolute ethanol, add dropwise to the titanium sol, and add 0.5g of acetylacetone, 0.5g of isobutanol and 0.1g of wetting agent TEGO-760, and stir at room temperature for 1 hour , filter package.

[0063] Coating performance: the appearance is light blue and transparent, the viscosity is about 1mPa.s, and the solid content is 4.1%;

[0064] Construction and drying: Prepare the coating on the ABS fan blade by spraying; first dry at room temperature for 30 minutes, and then ba...

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Abstract

The invention discloses efficient dust-free hydrophobic coating for the surfaces of wood, metal and plastic as well as a preparation method thereof. The efficient dust-free hydrophobic coating for thesurfaces of wood, metal and plastic consists of the following raw materials in percentage by mass: 0.1 to 15 percent of titanium sol, 0.1 to 15 percent of fluorine-containing polymer nanoparticles, 0.1 to 5 percent of fluorine-containing silane coupling agent, 0.1 to 2 percent of wetting agent, 0.1 to 2 percent of stabilizer, 0.1 to 5 percent of film-forming aid and the balance of absolute ethanol, wherein the titanium sol is titanium dioxide sol with the average particle diameter of 120 to 200 nm and the chemical composition of the titanium sol is an ethanol solution of titanium dioxide; andthe average particle diameter of the fluorine-containing polymer nanoparticles is 10 to 50 nanometers. The dust-free hydrophobic coating enables the surface of a base material to present a hydrophilic and hydrophobic alternating structure and is focused on hydrophobicity; and the contact angle of the coating and water is 116.3 degrees, so that the dust-free performance of the base material is increased to 87.4 percent; and the dust-free hydrophobic coating provided by the invention has the advantages of few components, simple preparation process, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of dust-free coatings, in particular to a high-efficiency dust-free hydrophobic coating for wood, metal and plastic surfaces and a preparation method thereof. Background technique [0002] In industrial production, wood, metal and plastic surfaces are easily stained with various dusts, such as industrial pipes, fan blades or ventilation ducts. In some pipes or large equipment, the dust is difficult to clean, and after the dust adheres to the surface of wood, metal and plastic for a long time, even if the equipment is disassembled for cleaning, it is difficult to completely clean the dust on the surface of wood, metal and plastic. [0003] In addition, at present, many buildings in our country have not been cleaned for many years, resulting in many stains on the surface of the buildings. There is an urgent need for a high-efficiency non-stick dust coating to solve this problem. The non-stick performance of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/18C09D127/16C09D123/28C09D127/12C09D127/14C09D123/08C09D171/00C09D5/16C09D7/61C09D7/63
CPCC08K2003/2241C08K2201/011C09D5/1668C09D5/1687C09D123/0892C09D123/28C09D127/14C09D127/16C09D127/18C09D171/00C08K3/22C08K5/5419C08K5/06C08K5/17
Inventor 瞿金清王磊郑佳蓉
Owner 青岛中氟氟碳材料有限公司
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