Visible light photocatalytic functional treatment liquid for wood lacquer coating surface and preparation method thereof

A visible light and photocatalytic technology, applied in the field of coatings, can solve problems such as failure to meet environmental protection requirements, cadmium sulfide toxicity, etc., and achieve the effects of enhancing photolysis ability, improving photocatalytic effect, and improving photocatalytic efficiency.

Active Publication Date: 2021-09-14
江阴市天邦量子涂层科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are also literatures that propose to add semiconductors with narrow band gaps such as cadmium sulfide and tin dioxide, but cadmium sulfide and tin dioxide have certain toxicity and cannot meet environmental protection requirements.

Method used

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  • Visible light photocatalytic functional treatment liquid for wood lacquer coating surface and preparation method thereof
  • Visible light photocatalytic functional treatment liquid for wood lacquer coating surface and preparation method thereof
  • Visible light photocatalytic functional treatment liquid for wood lacquer coating surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of visible light photocatalytic functional treatment liquid for the surface of wood lacquer coating, comprising the following components by weight percentage:

[0033]

[0034] The preparation method is as follows:

[0035] c) Add silicon nanoparticles into water to activate and stir for later use; add titanium dioxide quantum dots doped with noble metal ions according to the ratio, and use a ball mill at a speed of 70-1500 rpm for 0.25-1 hour to form a suspension ;

[0036] d) Add silica sol to the suspension obtained in step a), and ball mill for 0.25-1 hour until uniform; then add dispersant, thickener, defoamer, pH regulator, silicone modified water-based alkyd emulsion Use a ball mill to grind for 0.5-6 hours until it is uniform, and obtain a visible light photocatalytic functional treatment liquid for the surface of the wood paint coating, put it into a packaging container, and fill it with nitrogen gas at a pressure of 0.10-0.13 MPa for packaging.

Embodiment 2

[0038] The formula and preparation method in this embodiment are similar to Example 1, the only difference is that instead of using silicon nanoparticles with a particle size less than 8nm in this embodiment, silicon nanoparticles with a particle size of 20-200nm are used, and the rest are the same as those in Example 1. 1 is the same.

Embodiment 3

[0040] A kind of visible light photocatalytic functional treatment liquid for the surface of wood lacquer coating, comprising the following components by weight percentage:

[0041]

[0042] The preparation method is as follows:

[0043] a) Add silicon nanoparticles into water to activate and stir for later use; add noble metal ion-doped titanium dioxide quantum dots and FeOOH nanoparticles according to the proportion, and use a ball mill at a speed of 70-1500 rpm for 0.25-1 hour until uniform , forming a suspension;

[0044] b) Add silica sol to the suspension obtained in step a), and ball mill for 0.25-1 hour until uniform; then add dispersant, thickener, defoamer, pH regulator, silicone modified water-based alkyd emulsion Use a ball mill to grind for 0.5-6 hours until it is uniform, and obtain a visible light photocatalytic functional treatment liquid for the surface of the wood paint coating, put it into a packaging container, and fill it with nitrogen gas at a pressur...

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Abstract

The invention discloses a visible light photocatalytic functional treatment liquid for wood lacquer coating surface and a preparation method thereof. The visible light photocatalytic functional treatment liquid comprises the following components by weight percentage: 1-10% of silica sol, organosilicon modified Water-based alkyd emulsion 0.1-2%, titanium dioxide quantum dots doped with noble metal ions 1-10%, silicon nanoparticles 0.02-1%, FeOOH nanoparticles 0-0.5%, dispersant 0.1-1%, thickener 0.1% ‑1%, defoamer 0.1‑1%, pH adjuster 0.01‑0.3%, balance water. Compared with traditional photocatalytic coatings, the visible light photocatalytic functional treatment liquid for the surface of wood lacquer coatings of the present invention can significantly improve the photocatalytic effect, and can continuously and efficiently remove harmful substances such as formaldehyde, benzene, ammonia, TVOC and PM2.5, and can also Broad-spectrum kill bacteria, viruses, fungi, microorganisms, etc.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a visible light photocatalytic functional treatment liquid for wood lacquer coating surfaces and a preparation method thereof. Background technique [0002] Since photochemist Akira Fujishima discovered the photodecomposition of titanium dioxide single crystals in water under ultraviolet light in 1972, photocatalysis has gradually become a new type of green and environmentally friendly environmental pollution cleaning technology. Using the photocatalyst to absorb light, the electrons on the surface of the photocatalyst absorb enough energy to detach, and form positively charged holes at the position where the electrons detach, and the electrons and holes react with oxygen, water, and hydroxyl to generate superoxide with strong oxidative properties. Ions and hydroxyl radicals with strong reducing properties, superoxide ions and hydroxyl radicals oxidize and decompose organic pollutants and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D5/14C09D5/16C09D7/65C09D7/63
CPCC09D1/00C09D5/14C09D5/1687
Inventor 吴立新吴梓坚吕君毛文阳吴晗
Owner 江阴市天邦量子涂层科技有限公司
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