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Preparation method of visible light activated nano self-cleaning coating for engineering

A visible light and nano technology, used in coatings, biocide-containing paints, antifouling/underwater coatings, etc., can solve the problems of inability to achieve self-cleaning, weakened self-cleaning effect, poor visible light effect, etc., to promote compatibility. performance, long-lasting self-cleaning performance, and better film-forming properties

Inactive Publication Date: 2020-08-14
深圳市讯普法纳科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method for engineering visible light-activated nano-self-cleaning coatings to solve the problem that the self-cleaning coatings in the prior art need to be activated by ultraviolet light, and the visible light effect is poor, and when they are used indoors and in tunnels, etc. The self-cleaning function cannot be achieved; and the self-cleaning effect of the self-cleaning coating is weakened in long-term application

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  • Preparation method of visible light activated nano self-cleaning coating for engineering
  • Preparation method of visible light activated nano self-cleaning coating for engineering
  • Preparation method of visible light activated nano self-cleaning coating for engineering

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Embodiment 1

[0029] This embodiment provides a preparation method of visible light-activated nano self-cleaning coating for engineering. The preparation method includes the preparation of composite modified nano sol, and the composite modified nano sol includes nano carbon dioxide and nano Silica is prepared according to the ratio of 1:2 in mass percentage, and the active group is acrylate, and the preparation of the composite modified nano-sol is: the above-mentioned mass percentage of nano carbon dioxide and nano Silica is mixed, and water is added with a volume of 3 times. Under the action of ultrasonic vibration, the conditions of ultrasonic vibration here are: the ultrasonic frequency is 20kHz, and the ultrasonic power is 200W to form a uniform mixture A; the mixture A is added dropwise into the mixture of tetraethyl orthosilicate, alcohol and coupling agent, and fully stirred evenly to obtain composite modified nano-sol.

[0030] Wherein, in this embodiment, the visible light-activat...

Embodiment 2

[0037]This embodiment provides a preparation method of visible light-activated nano self-cleaning coating for engineering. The preparation method includes the preparation of composite modified nano sol, and the composite modified nano sol includes nano carbon dioxide and nano Silica is prepared according to the ratio of 3:2 by mass percentage, and the active group is acrylate, and the preparation of the composite modified nano-sol is: the above-mentioned mass percentage of nano carbon dioxide and nano Silica is mixed, and water is added with a volume of 5 times. Under the action of ultrasonic vibration, the conditions of ultrasonic vibration here are: the ultrasonic frequency is 45kHz, and the ultrasonic power is 250W to form a uniform mixture A; the mixture A is added dropwise into the mixture of tetraethyl orthosilicate, alcohol and coupling agent, and fully stirred evenly to obtain composite modified nano-sol.

[0038] Wherein, in this embodiment, the visible light-activate...

Embodiment 3

[0045] This embodiment provides a preparation method of visible light-activated nano self-cleaning coating for engineering. The preparation method includes the preparation of composite modified nano sol, and the composite modified nano sol includes nano carbon dioxide and nano Silica is prepared according to the ratio of 2:5 in mass percentage, and the active group is acrylate, and the preparation of the composite modified nano-sol is: the above-mentioned mass percentage of nano carbon dioxide and nano Silica is mixed, and water is added with a volume of 4 times. Under the action of ultrasonic vibration, the conditions of ultrasonic vibration here are: the ultrasonic frequency is 30kHz, and the ultrasonic power is 220W to form a uniform mixture A; the mixture A is added dropwise into the mixture of tetraethyl orthosilicate, alcohol and coupling agent, and fully stirred evenly to obtain composite modified nano-sol.

[0046] Wherein, in this embodiment, the visible light-activat...

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Abstract

The invention discloses a preparation method of a visible light activated nano self-cleaning coating for engineering. The preparation method comprises preparing composite modified nano sol, and the composite modified nano sol is prepared from nano carbon dioxide and nano silicon dioxide with an active group according to the mass percent ratio of (1-3): (2-9), the active group being acrylate. According to the method, the coating with an excellent self-cleaning effect can be prepared, the applicability is wide, and the problems that in the prior art, a self-cleaning coating needs to be activatedby ultraviolet light, the visible light effect is poor, and the self-cleaning function cannot be achieved when the self-cleaning coating is applied indoors, in tunnels and the like can be effectivelysolved; and a problem that the self-cleaning effect of the self-cleaning coating is weakened in long-term application can be effectively solved.

Description

technical field [0001] The invention relates to the preparation of self-cleaning materials, in particular to a preparation method of visible light-activated nanometer self-cleaning coating for engineering. Background technique [0002] The development of self-cleaning materials is mainly by coating a layer of coating with self-cleaning performance and anti-reflection effect on the surface of the substrate, and TiO2 is commonly used in such self-cleaning coatings, and its surface can use sunlight and natural rainfall. To keep itself clean, so as to save maintenance time, cost and energy, purify the air and reduce environmental pollution. The preparation methods of self-cleaning coatings in the prior art mainly include template method, particle filling method, sol-gel method, magnetron sputtering method, layer-by-layer self-assembly method, plasma technology, etc., but these preparation methods have complex processes, Harsh conditions, expensive equipment, and high production...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D5/16C09D7/62C09D7/61C09D7/65C09D7/80
CPCC09D4/00C09D5/1618C09D5/1687C09D7/80
Inventor 张波
Owner 深圳市讯普法纳科技发展有限公司
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