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Self-cleaning layer with photocatalysis and anti-static compounding functions and production method thereof

A composite function, anti-static layer technology, applied in coatings, conductive coatings, layered products, etc., can solve problems such as poor workability and insignificant self-cleaning effect, and achieve easy cost control, good anti-static, and reduced molecular attraction force effect

Inactive Publication Date: 2013-05-22
NANJING BEILIDA NEW MATERIAL SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, traditional self-cleaning coating materials all over the world have defects such as poor workability and insignificant self-cleaning effect.

Method used

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  • Self-cleaning layer with photocatalysis and anti-static compounding functions and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0047] 1) Pickling the surface of the cement board that needs to be self-cleaning to remove dust, dirt and impurities on the surface of the cement board, and then dry it naturally for 2 hours to ensure that the surface of the substrate is clean and dry.

[0048] 2) Configure a silicone water repellent suspension with a mass percentage concentration of 0.5%, spray evenly on the surface of a clean and dry substrate with a spray gun, and control the spraying amount at 0.1L / m 2 , Dry naturally for 60 minutes after spraying to form a closed layer.

[0049]3) According to the proportion by weight, 5kg (5%) of film-forming agent fluorocarbon resin, 0.1 kg (0.1%) of film-forming agent polyethylene glycol, 2kg (2%) of 5nm nano-tin oxide, and 20m nano-oxide Silver 0.5kg (0.5%), 10nm nano-silicon oxide 1kg (1%), methanol 35kg (35%), deionized water 56.4kg (56.4%), stir well and make anti-static material stock solution for later use.

[0050] 4) Pour the prepared antistatic material stoc...

Embodiment example 2

[0056] 1) Wash the glass surface that needs to be self-cleaning to remove dust, dirt, and impurities on the glass surface, and then dry it naturally for 8 hours to ensure that the surface of the substrate is clean and dry.

[0057] 2) Configure a silicone water repellent suspension with a concentration of 1% by mass, spray evenly on the surface of a clean and dry substrate with a spray gun, and control the spraying amount at 0.01L / m 2 , Dry naturally for 30 minutes after spraying to form a closed layer.

[0058] 3) 10kg (10%) of the film-forming agent butadiene resin, 1kg (1%) of 8nm nano-tin oxide, 0.5kg (0.5%) of 15nm nano-silver oxide, and 5kg of 8nm nano-silicon oxide according to the proportion by weight. (5%), ethanol 45kg (45%), deionized water 38.5kg (38.5%), stir well and make anti-static material stock solution for later use.

[0059] 4) Inject the stock solution of anti-static material into the chemical synthesis reaction kettle, control the speed at 400 rpm, contr...

Embodiment example 3

[0065] 1) Pickling the surface of the aluminum plate that needs to be self-cleaning to remove dust, dirt, and impurities on the surface of the aluminum plate, and then dry it naturally for 4 hours to ensure that the surface of the substrate is clean and dry.

[0066] 2) Configure the epoxy resin suspension with a mass percentage concentration of 2.5%, and spray it evenly on the surface of the clean and dry substrate with a spray gun, and the spraying amount is controlled at 0.2L / m 2 , Dry naturally for 90 minutes after spraying to form a closed layer.

[0067] 3) Mix 8kg (8%) of film-forming agent silane resin, 1.5 kg (1.5%) of film-forming agent low-molecular wax dispersant, 1.5kg (1.5%) of 5nm nano-silver oxide, and 5nm Nano silicon oxide 3kg (3%), ethylene glycol 40kg (40%), deionized water 46kg (46%), stir well and make anti-static material stock solution for later use.

[0068] 4) Pour the stock solution of the prepared anti-static material into the chemical synthesis re...

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Abstract

The invention relates to a self-cleaning layer with photocatalysis and anti-static compounding functions and a production method of the self-cleaning layer, and particularly relates to a method of combining photocatalytic materials capable of enabling visible light to respond and anti-static materials on a base material surface in an adhering manner. According to the self-cleaning layer, the anti-fouling, anti-dust and photocatalysis self-cleaning functions can be realized on external decorative material surfaces of different buildings. The self-cleaning layer is formed by a sealing layer, an anti-static layer and a photocatalysis layer, wherein the sealing layer is coated on the base material surface, the anti-static layer is compounded on the sealing layer, and finally, the photocatalysis layer is compounded on the anti-static layer. The self-cleaning layer is a novel self-cleaning layer capable of being automatically cleaned under visible light and preventing dust. The self-cleaning layer is mainly applied on building roofs, building curtain walls, wall decorations and glass surfaces and is also applied in the municipal traffic engineering construction and modification engineering projects.

Description

technical field [0001] The invention relates to a self-cleaning coating with photocatalytic and antistatic composite functions and its production method, specifically refers to the realization of antifouling, dustproof, photocatalytic self-cleaning coating on the surface of different building exterior decoration materials by the coating method. cleaning function. The products are mainly used in building roofs, building curtain walls, wall decoration, glass surfaces and municipal traffic engineering construction and renovation projects. Background technique [0002] Self-cleaning coatings for building exterior walls usually achieve self-cleaning function through the super-hydrophilic surface, which makes the pollutants fall off naturally under the washing of rainwater. However, in practical applications, since the super-hydrophilic properties of traditional self-cleaning coating materials are realized under the condition of sunlight, the super-hydrophilic properties of tradi...

Claims

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Application Information

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IPC IPC(8): B32B33/00C09D5/24C09D127/12C09D183/04C09D133/00B05D5/10B05D5/12B05D7/24
Inventor 熊吉如方寅生陶婷婷许升
Owner NANJING BEILIDA NEW MATERIAL SYST ENG
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