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A kind of negative ion formaldehyde eliminating agent and preparation method thereof

A formaldehyde scavenger, formaldehyde scavenger technology, applied in the field of indoor air purification, can solve the problems of low formaldehyde removal rate, complex preparation process, secondary pollution, etc., and achieve the effect of simple preparation process, low cost, and no secondary pollution

Active Publication Date: 2019-05-14
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing formaldehyde scavengers have defects such as high cost, complicated preparation process, low formaldehyde removal rate, and even secondary pollution, so they cannot be popularized and applied well.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] A kind of preparation method of negative ion formaldehyde eliminating agent, comprises the following steps:

[0023] Step 1. Pour water into the dispersing kettle, start stirring and then add polyvinylpyrrolidone. After the polyvinylpyrrolidone is completely dissolved, slowly add magnesium aluminum silicate and disperse with a disperser for 10 to 30 minutes;

[0024] Step 2. Slowly add negative ion powder into the dispersing kettle in step 1, adjust the speed of the disperser to 1500r / min to 3000r / min, and continue to disperse with the disperser for 20min to 50min;

[0025] Step 3: sequentially add anhydrous sodium sulfite, sodium bisulfite, glycerin and propylene glycol into the dispersing kettle in step 2, and continue to disperse and stir for 20 to 50 minutes to obtain the final product.

[0026] The final product obtained is a liquid spray, which is easy to use; when in use, just spray the formaldehyde remover into the air, and after spraying in the air, the formald...

Embodiment 1

[0028] A kind of negative ion formaldehyde scavenger, it is made up of the raw material of following percentage by weight:

[0029] Polyvinylpyrrolidone 1%

[0030] Anhydrous sodium sulfite 8%

[0031] Sodium bisulfite 1%

[0032] Propylene Glycol 2%

[0033] Glycerin 10%

[0034] Negative ion powder 5%

[0035] Magnesium Aluminum Silicate 3%

[0036] Water 70%.

[0037] Prepared according to the following steps:

[0038] Step 1. Pour 70% of the water into the dispersing tank, start stirring and then add 1% polyvinylpyrrolidone. After the polyvinylpyrrolidone is completely dissolved, slowly add 3% magnesium aluminum silicate and disperse for 10 minutes;

[0039] Step 2. Slowly add 5% negative ion powder into the dispersion kettle in step 1, adjust the speed of the disperser to 2500r / min, and disperse for 25 minutes;

[0040] Step 3, sequentially add 8% anhydrous sodium sulfite, 1% sodium bisulfite, 10% glycerin and 2% propylene glycol to the dispersion kettle in step 2...

Embodiment 2

[0042] A kind of negative ion formaldehyde scavenger, it is made up of the raw material of following percentage by weight:

[0043] Polyvinylpyrrolidone 3%

[0044] Anhydrous sodium sulfite 12%

[0045] Sodium bisulfite 3%

[0046] Propylene Glycol 5%

[0047] Glycerin 15%

[0048] Negative ion powder 7%

[0049] Magnesium Aluminum Silicate 5%

[0050] Water 50%.

[0051] Prepared according to the following steps:

[0052] Step 1. Pour 50% of water into the dispersion tank, start stirring and then add 3% polyvinylpyrrolidone. After the polyvinylpyrrolidone is completely dissolved, slowly add 5% magnesium aluminum silicate and disperse for 15 minutes;

[0053] Step 2. Slowly add 7% negative ion powder into the dispersion kettle in step 1, adjust the speed of the disperser to 2000r / min, and disperse for 30 minutes;

[0054] Step 3, sequentially add 12% anhydrous sodium sulfite, 3% sodium bisulfite, 15% glycerin and 5% propylene glycol to the dispersion kettle in step 2, ...

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PUM

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Abstract

The invention relates to an anion formaldehyde removing agent which is prepared from the following raw materials by weight percent: 5%-20% of glycerinum, 1%-5% of propylene glycol, 1%-9% of magnesium aluminum silicate, 2%-8% of anion powder, 5%-25% of anhydrous sodium sulfite, 0.5%-5% of sodium hydrogen sulfite, 0.5%-5% of polyvinylpyrrolidone and 20%-80% of water, wherein the sum of the content of all the materials is 100%. A preparation method comprises the following steps of: pouring water into a dispersing kettle; starting to stir and then adding polyvinylpyrrolidone; after completely dissolving, slowly adding magnesium aluminum silicate and dispersing with a dispersion machine; adding anion powder, regulating the rotating speed of the dispersion machine to 1500r / min to 3000r / min and continuing to use the dispersion machine for dispersing; and adding anhydrous sodium sulfite, sodium hydrogen sulfite, glycerol and propylene glycol into the dispersing kettle in turn, dispersing and stirring, thereby acquiring the end product. The anion formaldehyde removing agent is convenient to use, is low in cost and is simple in preparation technique.

Description

technical field [0001] The invention relates to the technical field of indoor air purification, in particular to an anion formaldehyde eliminating agent and a preparation method thereof. Background technique [0002] Formaldehyde is one of the most serious indoor pollutions, and has been identified as carcinogenic and teratogenic substances by the World Health Organization. At present, the problem of excessive free formaldehyde content in interior decoration materials is still quite serious. Free formaldehyde mainly comes from materials such as boards, furniture, adhesives and paints, and the release period of free formaldehyde is 3-15 years, so indoor air is caused by decoration. The formaldehyde released by materials will affect people's health for a long time, and it is one of the important factors causing bad building syndrome, building-related syndrome and other diseases. Therefore, reducing indoor air pollution is a research and development work with important social ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/72
CPCB01D53/72B01D53/78B01D2258/06
Inventor 徐金宝钟国伦
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG