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Environment-friendly type multifunctional nano modified coating and spraying method thereof

A nano-modified and multi-functional technology, applied in coatings, fibrous fillers, devices for coating liquids on the surface, etc., can solve the problems of easy crack formation, high solid content and high cost in the coating, and achieve a large contact area. , The effect of uniform coating, reducing product consumption and cost

Inactive Publication Date: 2015-07-01
赵杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the functionality of coating products on the market is mainly due to the addition of nano-silica, nano-silver particles or hollow particles in its formula. After the coating is cured, the nano-materials on the surface will provide special functions. Therefore, the formula requires Add a large amount of nanoparticles to ensure that there are enough nanoparticles on the surface of the coating after curing, so the cost is high, and because the solid content in the formula is too high, the coating is prone to cracks after aging, and even peels off from the base material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, the environment-friendly multifunctional nano-modified coating of the present invention is to weigh the following components according to the weight fraction: 200 kg of surface-modified nano-titanium dioxide particle slurry, 100 kg of acrylic acid film-forming agent, 30 kg of dispersant, Thickener 10 kg, defoamer 10 kg, water 650 kg. Mix the acrylic film-forming agent, dispersant, thickener, defoamer and water temperature and add dropwise to the mixer with surface-modified nano-scale titanium dioxide particle slurry, stir at 400rpm for 1 hour until uniform , and finally adjust the pH to 6.0-6.5 to obtain the finished product.

[0023] The preparation method of the nano titanium dioxide particle slurry of surface modification, its step is: (1) anatase type nano TiO 2 Add 890 kg of water to 100 kg, stir for 1 hour until it is uniformly dispersed; (2) add 10 kg of silane coupling agent dropwise, including 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxy...

Embodiment 2

[0026] Embodiment two, the environment-friendly multifunctional nano-modified paint of the present invention is to weigh the following components according to the weight fraction: 50 kilograms of surface-modified nano-titanium dioxide particle slurry, 50 kilograms of acrylic acid film-forming agent, 10 kilograms of dispersant, Thickener 40 kg, defoamer 10 kg, water 840 kg. Add acrylic acid film-forming agent, dispersant, thickener, defoamer and water dropwise to the mixer with surface-modified nano-scale titanium dioxide particle slurry in advance, stir at 400rpm for 1 hour until uniform, and finally Adjust the pH to 6.0-6.5 to obtain the finished product.

[0027] Wherein the preparation method of the nano titanium dioxide particle slurry of surface modification, its step is: (1) anatase type nano TiO 2Add 890 kg of water to 100 kg, stir for 1 hour until it is uniformly dispersed; (2) add 10 kg of silane coupling agent dropwise, including 3-aminopropyltrimethoxysilane, 3-ami...

Embodiment 3

[0030] Embodiment 3, the environment-friendly multifunctional nano-modified paint of the present invention is to mix 30 kg of acrylic film-forming agent, 5 kg of dispersant, 10 kg of thickener, 5 kg of defoaming agent and 610 kg of water, and then drop them under stirring In a mixer with 50 kg of 3-aminopropyltrimethoxysilane modified nano-titanium dioxide particle slurry with a solid content of 6% in advance, stir at 400 rpm for 0.6 hours until uniform, and finally adjust the pH to 6.0-6.5 to obtain finished product.

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Abstract

The invention relates to environment-friendly type multifunctional nano modified coating and a spraying method thereof, which are used for solving the problems that the existing coating is high in cost and not resistant to ageing. The environment-friendly type multifunctional nano modified coating is prepared from the following components in parts by weight: 50-200 parts of nano titanium dioxide particle slurry, 30-100 parts of an acrylic resin finishing agent, 5-30 parts of a dispersing agent, 10-50 parts of a thickening agent, 5-10 parts of a de-foaming agent and an appropriate amount of water, wherein the nano titanium dioxide particles in the nano titanium dioxide particle slurry are surface-modified anatase titanium dioxide particles with a photocatalysis function and particle diameters of 10nm-50nm. Airflow atomized spraying of the compressed air is as follows: atomizing a paint liquid into mists by virtue of air flow of the compressed air, spraying the mists to the surface of an object, and forming a thin and uniform paint film on the surface of the sprayed object. Such special functions as super-hydrophobicity, ultraviolet ray resistance, bacteria resistance, self-cleaning, air purifying and the like are achieved without affecting the original color and patterns of the substrate, the functionality and the stability of the special functions are still relatively strong after long-term illuminating or multi-time washing, the cost is low, and the ageing resistance is excellent.

Description

technical field [0001] The invention relates to a coating, in particular to an environment-friendly multifunctional nano-modified coating and a spraying method. technical background [0002] Multi-functional coating is a functional coating that endows the surface of the substrate with various special properties at the same time. With the development of modern technology and nanotechnology, functional coatings have a development history of about 10 years, but most of the products are limited to a single function, such as antifouling (CN 102746788 A), electrical conductivity (CN 102690582 A), One of fire resistance (200610086951.0), heat insulation (CN 102344731 A), etc. However, the functionality of coating products on the market is mainly due to the addition of nano-silica, nano-silver particles or hollow particles in its formula. After the coating is cured, the nano-materials on the surface will provide special functions. Therefore, the formula requires Add a large amount...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09C1/36C09C3/12B05D1/02
Inventor 赵杰张亚莉
Owner 赵杰
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