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Anti-bacterial formaldehyde removal purifying agent and preparation method thereof

A purifying agent and film-forming agent technology, applied in the field of air purification, can solve problems such as easy to produce sour taste, high viscosity, low pH value, etc., to achieve the effect of ensuring healthy life, simple production process and convenient use

Inactive Publication Date: 2017-10-20
广州市科瑨材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent CN100360214C uses inorganic salt components to absorb formaldehyde and uses nano-silver to fight bacteria, but its components contain ammonium chloride, which is easily decomposed in the daily environment to produce harmful ammonia gas, causing secondary pollution
Chitosan is also a commonly used aldehyde remover at present. It has amino groups and hydroxyl groups in its structure, which can remove formaldehyde. Sour taste, resulting in a bad user experience; to achieve a good aldehyde removal effect, a high concentration of chitosan must be used, which has a high viscosity and is not convenient for spraying; and the solution is acidic and has a low pH value, which is easy to remove Corrosion of metal parts and other non-acid-resistant surfaces in the environment

Method used

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  • Anti-bacterial formaldehyde removal purifying agent and preparation method thereof
  • Anti-bacterial formaldehyde removal purifying agent and preparation method thereof
  • Anti-bacterial formaldehyde removal purifying agent and preparation method thereof

Examples

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Embodiment 1

[0032] 1. Preparation of antibacterial and aldehyde-removing purifying agent

[0033] (1) 2.5kg chitosan oligosaccharide (molecular weight 1300Da) is added to 900kg deionized water, stirred and dissolved to obtain chitosan oligosaccharide solution;

[0034] (2) in the chitosan oligosaccharide solution described in step (1), add 5kg urea, 4kg 5000ppm complexed silver ion solution, 1kg PEG6000 film-forming agent successively, stir, dissolve completely, add 1mol / L sodium citrate solution to make When the pH value of the solution reaches 5, add water to 1000kg, and then vacuum filter with a 0.45 micron microfiltration membrane to obtain a light yellow, clear and transparent antibacterial and aldehyde-removing purifying agent, which is then filled.

Embodiment 2

[0045] 1. Preparation of antibacterial and aldehyde-removing purifying agent

[0046](1) 10kg chitosan oligosaccharide (molecular weight 3500Da) is added to 850kg deionized water, stirred and dissolved to obtain chitosan oligosaccharide solution;

[0047] (2) Add 5kg 2-imidazolidinone, 10kg 5000ppm complexed silver ion solution, 100kg 30wt%PVA solution successively in the chitosan oligosaccharide solution described in step (1), stir evenly, dissolve completely, add 10wt% polyamide Make the pH value of the solution to 7.5, add water to 1000kg, and then vacuum filter with a 0.45-micron microfiltration membrane to obtain a light yellow, clear and transparent antibacterial and aldehyde-removing purifying agent, which is then filled.

Embodiment 3

[0058] 1. Preparation of antibacterial and aldehyde-removing purifying agent

[0059] (1) 20kg chitosan oligosaccharide (molecular weight 3500Da) is added to 900kg deionized water, stirred and dissolved to obtain chitosan oligosaccharide solution;

[0060] (2) add 10kg lysine, 20kg 5000ppm complexed silver ion solution, 5kg PVP K90 solution successively in the chitosan oligosaccharide solution described in step (1), stir evenly, dissolve completely, add 0.2mol / L sodium carbonate solution Make the pH value of the solution to neutral, add water to 1000kg, and then vacuum filter with a 0.45 micron microfiltration membrane to obtain a colorless, clear and transparent antibacterial and aldehyde-removing purifier, which is filled.

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Abstract

The invention relates to an anti-bacterial formaldehyde removal purifying agent and a preparation method thereof. The anti-bacterial formaldehyde removal purifying agent comprises water and the following components: 0.1 to 10 wt percent of chitosan oligosaccharide, 5 to 200 ppm of complex silver ions, 0.1 to 10 wt percent of osmotic active ingredients, and 0.1 to 5 wt percent of a film-forming agent. The method comprises the following steps: adding the chitosan oligosaccharide into deionized water, and stirring to enable the chitosan oligosaccharide to be dissolved, so as to obtain a chitosan oligosaccharide solution; sequentially adding the osmotic active ingredients, a complex silver ion solution and the film-forming agent into the chitosan oligosaccharide solution, uniformly stirring to enable the components to be completely dissolved, adjusting the pH of the solution, adding water to constant volume, and then performing suction filtration through a micro-filtration membrane, so as to obtain the anti-bacterial formaldehyde removal purifying agent. The anti-bacterial formaldehyde removal purifying agent has a function of powerfully removing formaldehyde and bacteria in the air and on the surfaces of devices, thereby providing a green, environmental-friendly and safe living environment for people and practically guaranteeing the healthy life of people; and the production method is simple, operation is easy, and use is convenient.

Description

technical field [0001] The invention relates to the field of air purification, in particular to an antibacterial and aldehyde-removing purifying agent and a preparation method thereof. Background technique [0002] Among modern household materials, high-density boards prepared by bonding wood chips with urea-formaldehyde glue are one of the most used materials. However, there is a lot of free formaldehyde remaining in the urea-formaldehyde glue synthesized by urea and formaldehyde. Even urea-formaldehyde glue that meets the national standard has a content of free formaldehyde as high as 0.3%. What's more, the quality of urea-formaldehyde glue on the market is uneven, and the content of formaldehyde is even higher. All kinds of furniture made of MDF have become the biggest culprit of formaldehyde pollution in people's living environment, causing great harm to people's health. [0003] In addition, in the environment we live in, it is easy to breed various bacteria, and thes...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/72A62D3/30A62D101/28
CPCA62D3/30A62D2101/28B01D53/72B01D53/78B01D2257/708B01D2257/91B01D2258/06
Inventor 马清金
Owner 广州市科瑨材料科技有限公司
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