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Formaldehyde scavenging agent and preparation method thereof

A formaldehyde scavenger and formaldehyde removal technology, applied in the direction of coating, etc., can solve the problems of high production cost, unsuitable for large-scale use, low formaldehyde sensitivity, etc., and achieve simple production equipment, continuous purification of formaldehyde, and simple production process.

Inactive Publication Date: 2012-02-08
BEIJING SHENGHUA ZHONGXING ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some formaldehyde scavengers have appeared, but the common problems of the current formaldehyde scavengers are: 1. Some formaldehyde scavengers react slowly with formaldehyde, the removal efficiency is low, and the effect is not obvious; The time is short, the sensitivity to formaldehyde is not high, and the removal effect on trace formaldehyde is not good; 3. Some formaldehyde scavengers have complicated manufacturing equipment and processes, and the production cost is high; 4. Some formaldehyde scavengers have poor water solubility and are not suitable for large-scale use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] 1) Dosing according to the following weight percentage

[0021] Ethylene urea 5%

[0022] Glycine 10%

[0023] Ammonium Chloride 15%

[0024] Silica Sol 5%

[0025] Polyvinyl alcohol 5%

[0026] water 60%

[0027] 2) Add 30% water and 5% polyvinyl alcohol into the reaction kettle, stir, heat to 90° C., keep the temperature for 1-1.5 hours, and cool down.

[0028] 3) After cooling down to room temperature, mix the remaining raw materials with 30% water and add them into the reaction kettle, stir for 1-1.5 hours, and discharge.

example 2

[0030] 1) Dosing according to the following weight percentage

[0031] Ethylene urea 10%

[0032] Glycine 15%

[0033] Ammonium Chloride 10%

[0034] Silica Sol 4%

[0035] Polyvinyl alcohol 8%

[0036] water 53%

[0037] 2) Add 30% water and 8% polyvinyl alcohol into the reaction kettle, stir, heat to 90° C., keep the temperature for 1-1.5 hours, and cool down.

[0038] 3) After cooling down to room temperature, mix the remaining raw materials with 23% water and add them into the reaction kettle, stir for 1-1.5 hours, and discharge.

example 3

[0040] 1) Dosing according to the following weight percentage

[0041] Ethylene urea 8%

[0042] Glycine 12%

[0043] Ammonium Chloride 20%

[0044] Silica Sol 3%

[0045] Polyvinyl alcohol 7%

[0046] water 50%

[0047] 2) Add 25% water and 7% polyvinyl alcohol into the reaction kettle, stir, heat to 90° C., keep the temperature for 1-1.5 hours, and cool down.

[0048] 3) After cooling down to room temperature, mix the remaining raw materials with 25% water and add them into the reaction kettle, stir for 1-1.5 hours, and discharge.

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PUM

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Abstract

The invention provides a novel formaldehyde scavenging agent which has high formaldehyde scavenging efficiency, durable action effect and simple production process, and can effectively scavenge formaldehyde from indoor air and simultaneously reduce the formaldehyde release amount of the decoration materials. The formaldehyde scavenging agent is characterized in that: the product is prepared from the following raw materials according to a weight ratio: 2-60% of formaldehyde scavenging factor, 1-10% of film forming agent, 1-10% of film forming aid and 40-80% of water. The formaldehyde scavenging agent is aqueous, can be sprayed to indoor air, wall or furniture, has high formaldehyde capturing rate and is convenient for use.

Description

technical field [0001] The invention relates to a preparation for removing harmful organic substances and a preparation method thereof, in particular to a formaldehyde scavenger and a preparation method thereof. Background technique [0002] Formaldehyde is an important chemical raw material widely used in organic synthesis. Among the compounds synthesized with formaldehyde, those closely related to people's daily life mainly include adhesives, coatings and textile auxiliaries, such as amino resins, polyvinyl formal used in the production of interior and exterior coatings, and textile finishing agents. The production process of these products is simple and the cost is low, so they are widely used in wood processing production such as particleboard, plywood, fiberboard and post-treatment of textiles. A certain amount of formaldehyde will be released during the production, processing and application of final products. . At present, formaldehyde has become the primary polluta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/30C09D129/04C09D183/04C09D7/12
Inventor 徐仲均
Owner BEIJING SHENGHUA ZHONGXING ENVIRONMENTAL PROTECTION TECH
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