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A single-atom coating with formaldehyde removal function and preparation method thereof

An atomic and formaldehyde-based technology, applied in the field of single-atom coatings with the function of removing formaldehyde and its preparation, can solve the problems of difficult to control by-product ozone release, complex preparation process, and difficult promotion and use, etc., to facilitate large-scale batch production, The preparation method is simple and the effect of good anti-aging performance

Active Publication Date: 2022-05-03
LINKWAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plasma purification technology can decompose formaldehyde molecules at low temperature, but the biggest disadvantage is that it is difficult to control the release of by-product ozone in the product, which is easy to cause secondary pollution
Photocatalytic technology is based on TiO 2 Nanoscale catalysts are raw materials loaded on a specific carrier to degrade formaldehyde molecules under an ultraviolet light source. However, the material preparation process is complicated and the technology is difficult. If it is used in indoor aldehyde removal, it needs to be irradiated with ultraviolet lamps. The production cost is high and it is not easy. promotional use

Method used

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  • A single-atom coating with formaldehyde removal function and preparation method thereof
  • A single-atom coating with formaldehyde removal function and preparation method thereof
  • A single-atom coating with formaldehyde removal function and preparation method thereof

Examples

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preparation example 1

[0057] The mass ratio of the transition metal and the carrier in the formaldehyde-removing single-atom catalyst is 1:20, and the synthesis steps are as follows:

[0058] 1) Preparation of porous nano-zirconium phosphate precursor: first prepare 1-(2-aminoethyl)-3-(2-diethoxyphosphate) ethylimidazolium bromide liquid: 1 with a molar ratio of 1:3 -(2-Aminoethyl)imidazole hydrobromide and diethyl bromoethyl phosphate, with methanol as the solvent, reflux and stir at 90°C for 36h; after the reaction, cool to room temperature, and remove the solvent by rotary evaporation to obtain a viscous liquid , dissolve this liquid in water, add equimolar sodium hydroxide, stir at room temperature for 1 h, remove water by rotary evaporation, filter off solid sodium bromide, and dry in vacuo to obtain ionic liquid 1-(2-aminoethyl)- 3-(2-diethoxyphosphate) ethyl imidazolium bromide, 1-(2-aminoethyl)-3-(2-diethoxyphosphate)ethyl with a molar ratio of 2:3:2 Stir imidazolium bromide, zirconium nit...

preparation example 2

[0063] The mass ratio of the transition metal and the carrier in the formaldehyde-removing single-atom catalyst is 1:50, and the synthesis steps are as follows:

[0064] 1) Preparation of porous nano-zirconium phosphate precursor: first prepare 1-(2-aminoethyl)-3-(2-diethoxyphosphate) ethylimidazolium bromide liquid: 1 with a molar ratio of 1:3 -(2-Aminoethyl)imidazole hydrobromide and diethyl bromoethyl phosphate, with methanol as the solvent, reflux and stir at 90°C for 36h; after the reaction, cool to room temperature, and remove the solvent by rotary evaporation to obtain a viscous liquid , dissolve this liquid in water, add equimolar sodium hydroxide, stir at room temperature for 1 h, remove water by rotary evaporation, filter off solid sodium bromide, and dry in vacuo to obtain ionic liquid 1-(2-aminoethyl)- 3-(2-diethoxyphosphate) ethyl imidazolium bromide, 1-(2-aminoethyl)-3-(2-diethoxyphosphate)ethyl with a molar ratio of 2:3:2 Stir imidazolium bromide, zirconium nit...

preparation example 3

[0069] The mass ratio of the transition metal and the carrier in the formaldehyde-removing single-atom catalyst is 1:100, and the synthesis steps are as follows:

[0070] 1) Preparation of porous nano-zirconium phosphate precursor: first prepare 1-(2-aminoethyl)-3-(2-diethoxyphosphate) ethylimidazolium bromide liquid: 1 with a molar ratio of 1:3 -(2-Aminoethyl)imidazole hydrobromide and diethyl bromoethyl phosphate, with methanol as the solvent, reflux and stir at 90°C for 36h; after the reaction, cool to room temperature, and remove the solvent by rotary evaporation to obtain a viscous liquid , dissolve this liquid in water, add equimolar sodium hydroxide, stir at room temperature for 1 h, remove water by rotary evaporation, filter off solid sodium bromide, and dry in vacuo to obtain ionic liquid 1-(2-aminoethyl)- 3-(2-diethoxyphosphate) ethyl imidazolium bromide, 1-(2-aminoethyl)-3-(2-diethoxyphosphate)ethyl with a molar ratio of 2:3:2 Stir imidazolium bromide, zirconium ni...

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Abstract

The application relates to the field of functional coatings, and specifically discloses a single-atom coating with the function of removing formaldehyde and a preparation method thereof. A single-atom paint with formaldehyde removal function is prepared from the following raw materials by mass percentage: acrylic emulsion 18‑22%, defoamer 1‑2%, dispersant 2‑5%, propylene glycol 5‑10% , film-forming aid 1‑2%, thickener 4‑8%, pH regulator 0.2%, formaldehyde-removing single-atom catalyst 2‑5%, filler powder 30‑40%, deionized water 17‑28%. The present invention uses a self-developed formaldehyde-removing single-atom catalyst without other auxiliary conditions. It can efficiently absorb formaldehyde at room temperature and pressure without light, and catalyze and oxidize formaldehyde into harmless carbon dioxide and water. Secondary pollution, and the continuous action time is long without self-consumption, endowing the coating with the advantages of efficient absorption of formaldehyde, long-term removal of formaldehyde, odorless, non-toxic, and green environmental protection, which can solve the disadvantages of traditional coatings that are volatile and non-degradable formaldehyde .

Description

technical field [0001] The application relates to the field of functional coatings, more specifically, it relates to a single-atom coating with the function of removing formaldehyde and a preparation method thereof. Background technique [0002] With the improvement of the economic level, people's living standards have been significantly improved, and the requirements for a healthy life are getting higher and higher. In terms of housing, people have higher and higher requirements for the living environment, and fashion decoration and new-style home furnishing have become the goals pursued by many people. However, the use of these decoration materials and furniture on the market will produce harmful substances - formaldehyde. Formaldehyde is extremely harmful to human health, especially for pregnant women, the elderly and children. It is a carcinogenic and teratogenic substance recognized by the World Health Organization, and it is also the main inducing factor of leukemia. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D7/62
CPCC09D133/04C09D7/62C08K2003/0806C08K2003/0856C08K13/06C08K9/12C08K3/08
Inventor 赵超王晶黄红锋吴宇波邹俊童助雄
Owner LINKWAY TECH CO LTD