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Spray for removing formaldehyde

A technology for removing formaldehyde and spray, which is used in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of exceeding the standard, long volatilization time, short action time, etc., and achieves reduction of free formaldehyde content, high capture efficiency, low cost effect

Pending Publication Date: 2021-11-30
广西瑞朗生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the fact that the formaldehyde content in my country's home furnishing industry generally exceeds the standard, the volatilization time is long and the formaldehyde content of plate materials is too high, and most of the current aldehyde removal sprays have a lot of residues, short action time, and simply capture formaldehyde. For the problem that formaldehyde will still be released after decomposition and action time, a formaldehyde removal spray is provided, which captures formaldehyde in the air by using melamine, and decomposes it with nano-titanium dioxide as a catalyst

Method used

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  • Spray for removing formaldehyde
  • Spray for removing formaldehyde
  • Spray for removing formaldehyde

Examples

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Embodiment 1

[0029] A formaldehyde-removing spray consisting of melamine, dodecyl dimethyl hydroxypropyl sulfobetaine, nano-scale silicon-coated titanium dioxide, ethylene glycol, 1,2,3 benzotriazole and purified water, Made according to the mass ratio of 0.6:0.4:1.0:0.7:0.3:95.0;

[0030] The preparation method of the spray of above-mentioned a kind of spray that removes formaldehyde comprises the steps:

[0031] 1) Preparation of nano-scale silicon-coated titanium dioxide: take GR-grade titanium dioxide with a particle size of 40-50nm, add equal mass ratio water to dissolve, ultrasonically disperse to form a titanium dioxide slurry, and heat to 85°C with a dropwise concentration of 0.1mol / L sodium silicate solution, while adding dilute sulfuric acid dropwise to adjust the pH to 9.0, to obtain nano-scale silicon-coated titanium dioxide with uniform particle size and good film-forming uniformity;

[0032] 2) Preparation of the spray: heat ethylene glycol to 85°C, add melamine according to...

Embodiment 2

[0034]A formaldehyde-removing spray consisting of melamine, dodecyl dimethyl hydroxypropyl sulfobetaine, nano-scale silicon-coated titanium dioxide, ethylene glycol, 1,2,3 benzotriazole and purified water, Made according to the mass ratio of 0.6:0.35:1.0:0.7:0.3:94.0;

[0035] The preparation method of the spray of above-mentioned a kind of spray that removes formaldehyde is the same as embodiment 1.

Embodiment 3

[0037] A formaldehyde-removing spray consisting of melamine, dodecyl dimethyl hydroxypropyl sulfobetaine, nano-scale silicon-coated titanium dioxide, ethylene glycol, 1,2,3 benzotriazole and purified water, Made according to the mass ratio of 0.6:0.45:1.0:0.5:0.3:96.0;

[0038] The preparation method of the spray of above-mentioned a kind of spray that removes formaldehyde is the same as embodiment 1.

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Abstract

The invention provides a spray for removing formaldehyde. The spray is prepared from melamine, dodecyl dimethyl hydroxypropyl sulphobetaine, nanoscale silicon-coated titanium dioxide, ethylene glycol, 1,2,3-benzotriazole and refined water according to the mass ratio of 0.6:(0.3-0.5):1.0:(0.7-0.9):(0.2-0.4):(93.0-96.5). Melamine is used for capturing formaldehyde existing in air, and nano titanium dioxide is used as a catalyst for decomposition. The formaldehyde removal spray with the formaldehyde removal capacity is simple in preparation, convenient to prepare and capable of integrating capture and decomposition, raw materials are easy to obtain, and the formaldehyde removal spray can be widely applied to various environments, such as families, companies and furniture industries, with formaldehyde content exceeding the standard.

Description

【Technical field】 [0001] The invention relates to the technical field of household formaldehyde removal, in particular to a spray for removing formaldehyde. 【Background technique】 [0002] Formaldehyde is a volatile organic compound and an important industrial raw material. It is colorless, has a special smell, and is easily soluble in water. On the one hand, the adhesive, POM and printing and dyeing industries, as the main consumption areas of my country's formaldehyde industry, consume a large amount of formaldehyde and its related derivatives every year, which brings convenience to our life and work; on the other hand, because formaldehyde is an aldehyde The simplest small molecule in the compound, its carbonyl electrophilicity and small steric hindrance will more easily cross-link with proteins and nucleic acids, resulting in other genetic damage such as DCP. Formaldehyde is listed on the priority control list of toxic chemicals in my country in the second place. The mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/72B01D53/82B01D53/86
CPCB01D53/72B01D53/82B01D53/8668Y02A50/20
Inventor 王钧宇卻林许旺发梁坤国张美婷张芳
Owner 广西瑞朗生物科技有限公司