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Environment-friendly formaldehyde removal material and preparation method thereof

An environmentally friendly material and formaldehyde technology, applied in the field of pollution control, can solve the problems of low utilization efficiency of visible light, catalyst deactivation, high price, etc., and achieve the effect of enhanced formaldehyde removal effect, good performance stability, and low price

Inactive Publication Date: 2018-05-04
CHENGDU YUYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical catalysis method has been widely used in recent years because of no secondary pollution, no adsorption saturation and other problems, but the common catalysts used in the chemical catalysis method have more or less disadvantages such as expensive, easy to poison, and easy to deteriorate.
Photocatalysts avoid the above shortcomings, but currently the most common photocatalyst, titanium dioxide, requires ultraviolet excitation, which has low utilization efficiency of visible light and deactivation of the catalyst.

Method used

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  • Environment-friendly formaldehyde removal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method for formaldehyde-removing environmental protection material, comprising the steps of:

[0027] 1) Preparation of intermediate: 10 g of 4-chloromethylstyrene was dissolved in 50 g of ethanol, and 10 g of aminopropanol ascorbyl phosphate and 2 g of hydroquinone were added thereto, stirred at room temperature for 4 hours, then at 40 Rotary evaporation at ℃ to remove the solvent, then wash the product with a mixed solvent for 5 times, and finally remove the solvent by rotary evaporation at 30 °C; the mixed solvent is a mixture of diethyl ether and dichloromethane in a mass ratio of 3:7;

[0028] 2) Preparation of copolymer material: Dissolve 6 g of the intermediate prepared in step 1) in 15 g of dimethyl sulfoxide, and then add 3 g of 1,3-divinyl-2-imidazolidinone and azobis 0.09g of isobutyronitrile, stirred and reacted at 50°C for 1 hour, and then cast the product to form a film;

[0029] 3) Ion exchange: soak the copolymer material prepared in step ...

Embodiment 2

[0032] A preparation method for formaldehyde-removing environmental protection material, comprising the steps of:

[0033] 1) Preparation of intermediate: 4-chloromethylstyrene 10g was dissolved in isopropanol 70g, and aminopropanol ascorbyl phosphate 11g and quinone tetrachloride 3g were added thereto, stirred at room temperature for 5 hours, and then Remove the solvent by rotary evaporation at 43°C, then wash the product with a mixed solvent for 6 times, and finally remove the solvent by rotary evaporation at 33°C; the mixed solvent is a mixture of diethyl ether and dichloromethane in a mass ratio of 3:7;

[0034] 2) Preparation of copolymer material: Dissolve 7.3 g of the intermediate prepared in step 1) in 20 g of N-methylpyrrolidone, and then add 4 g of 1,3-divinyl-2-imidazolidinone and even Azodiisoheptanonitrile 0.12g, stirred and reacted at 55°C for 1.2 hours, and then cast the product to form a film;

[0035] 3) Ion exchange: soak the copolymer material prepared in s...

Embodiment 3

[0038] A preparation method for formaldehyde-removing environmental protection material, comprising the steps of:

[0039] 1) Preparation of intermediate: Dissolve 10 g of 4-chloromethylstyrene in 80 g of ethylene glycol, add 12 g of aminopropanol ascorbyl phosphate and 4 g of 1,4-naphthoquinone, and stir at room temperature for 5.5 hours , then remove the solvent by rotary evaporation at 47°C, wash the product with a mixed solvent for 7 times, and finally remove the solvent by rotary evaporation at 36°C; the mixed solvent is a mixture of diethyl ether and dichloromethane in a mass ratio of 3:7;

[0040] 2) Preparation of copolymer material: Dissolve 8 g of the intermediate prepared in step 1) in 26 g of N,N-dimethylformamide, and then add 1,3-divinyl-2-imidazolinone to it 5.5g and 0.14g of dicumyl peroxide, stirred and reacted at 60°C for 1.8 hours, and then cast the product into a film;

[0041] 3) Ion exchange: soak the copolymer material prepared in step 2) in a solution ...

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Abstract

The invention discloses a preparation method of an environment-friendly formaldehyde removal material. The preparation method comprises the steps of enabling aminopropyl ascorbyl phosphate to react with 4-vinylbenzyl chloride to prepare an intermediate; dissolving the intermediate into a high boiling point solvent, then adding 1,3-divinyl-2-imidazolinone and an initiator into the obtained solution, stirring for carrying out a reaction for 1-2h at the temperature of 50-65 DEG C, and then pouring the product into a film; enabling the obtained film and a hydroxynaphthol blue solution to be subjected to ion exchange, and the like. The invention also discloses the environment-friendly formaldehyde removal material prepared by the method. The environment-friendly formaldehyde removal material disclosed by the invention is high in formaldehyde removal efficiency, rapid in speed, long in service life, green and free from secondary pollution, stable in chemical properties and low in price.

Description

technical field [0001] The invention relates to the technical field of pollution control, in particular to a formaldehyde-removing environmental protection material and a preparation method thereof. Background technique [0002] Formaldehyde is one of the indoor air pollutants. It is highly toxic and irritating. It is extremely harmful to human health. It is one of the main carcinogenic and teratogenic chemical substances. Formaldehyde in life usually comes from decoration and decoration materials. , furniture and coatings, etc., especially wood-based panels and the adhesives used. These materials use phenolic and urea-formaldehyde resins containing formaldehyde in the production process, and formaldehyde will be released during use. Therefore, how to effectively remove formaldehyde in indoor air has become a hot spot of current research, because it is closely related to people's quality of life and their health. [0003] At present, the adsorption method is mostly used in ...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/02B01D71/06B01D53/86B01D53/72C08F230/02C08F226/06
CPCB01D71/06B01D53/8668B01D67/0006B01D69/02B01D2257/70B01D2259/802B01D2325/10B01D2325/42C08F230/02C08F226/06
Inventor 向红先
Owner CHENGDU YUYA TECH
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