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Formaldehyde filter screen composite material for air purifier and preparation method thereof

A technology for air purifiers and composite materials, which is applied in the field of formaldehyde filter composite materials for air purifiers and its preparation. It can solve the problems of formaldehyde removal rate limitation, loss of formaldehyde removal function, poor visible light response, etc., and achieve high adsorption capacity and catalysis Effects of degradation ability, high adsorption activity, and large adsorption capacity

Inactive Publication Date: 2016-06-08
上海源述基因科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the activated carbon filter loses its ability to remove formaldehyde after reaching adsorption saturation for formaldehyde; 2 It only has a good response to ultraviolet light and poor response to visible light, so the removal rate of formaldehyde is largely limited by light

Method used

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Examples

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Effect test

preparation example Construction

[0020] The invention provides a preparation method of a formaldehyde filter screen composite material for an air purifier, comprising the following steps: mixing a solvent and a crosslinking agent, stirring, adding poly-1,4-diphenylbutadiyne and mesoporous titanium dioxide nanoparticles After stirring, the first mixed solution is obtained; activated carbon fibers are added to the first mixed solution to carry out cross-linking reaction, and after drying, the formaldehyde filter screen composite material for air purifiers is obtained.

[0021] As a preferred solution, the solvent is preferably acetone; the crosslinking agent is preferably epoxy resin; the drying temperature is preferably 70-90°C, more preferably 80°C. Specifically, the following steps are included: adding 100ml of solvent into a 250ml three-necked flask, then adding 1.5g of crosslinking agent, stirring, adding poly-1,4-diphenylbutadiyne and mesoporous titanium dioxide nanoparticles under stirring, After stirrin...

Embodiment 1

[0038] (1), the polymer photocatalyst is poly-1,4-diphenylbutadiyne: Weigh 1g of sodium lauryl sulfate and dissolve it in 2ml of 0.3mol / l NaCl solution, and vibrate violently to make the surface The active agent is fully dissolved to obtain a transparent solution, then add 10% mass fraction of 1,4-diphenylbutadiyne monomer and 1% mass fraction of initiator benzoin methyl ether cyclohexane mixed solution, shake vigorously until white Add 0.5ml of another surfactant 1-pentanol to the emulsion, mix well to form a mixed solution, and place it under ultraviolet light under stirring for 12 hours to generate photopolymerization reaction to form poly-1,4-diphenylbutadiene Alkyne nano-polymer photocatalyst, then wash with alcohol aqueous solution to remove excess surfactant, and centrifuge to separate the product; (2), the inorganic nano-photocatalyst is nano-mixed crystal titanium dioxide: take 3g of surfactant-hexadecane Trimethylammonium bromide was dissolved in 200mL deionized wate...

Embodiment 2

[0040] (1), the polymer photocatalyst is poly-1,4-diphenylbutadiyne: Weigh 1g of sodium lauryl sulfate and dissolve it in 2ml of 0.3mol / l NaCl solution, and vibrate violently to make the surface The active agent is fully dissolved to obtain a transparent solution, then add 10% mass fraction of 1,4-diphenylbutadiyne monomer and 1% mass fraction of initiator benzoin methyl ether cyclohexane mixed solution, shake vigorously until white Add 0.5ml of another surfactant 1-pentanol to the emulsion, mix well to form a mixed solution, and place it under ultraviolet light under stirring for 12 hours to generate photopolymerization reaction to form poly-1,4-diphenylbutadiene Alkyne nano-polymer photocatalyst, then wash with alcohol aqueous solution to remove excess surfactant, and centrifuge to separate the product; (2), the inorganic nano-photocatalyst is nano-mixed crystal titanium dioxide: take 3g of surfactant-hexadecane Trimethylammonium bromide was dissolved in 200mL deionized wate...

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Abstract

The invention provides a formaldehyde filter screen composite material for an air purifier and a preparation method thereof. The method comprises the steps of: mixing a solvent with a crosslinking agent, stirring, adding poly-1,4-diphenyl diacetylene and mesoporous titanium dioxide nanoparticles; stirring to obtain a first mixed liquor; adding activated carbon fiber to the first mixed liquor for crosslinking reaction; and drying to obtain the formaldehyde filter screen composite material for the air purifier. The invention uses activated carbon fiber as the matrix material with large specific surface area and high adsorption activity to ensure great adsorption capacity of the composite material. The screened mesoporous titanium dioxide nanoparticles with high UV response and poly-1,4-diphenyl diacetylene with visible light response are compounded to greatly improve the photocatalytic reactivity of the composite material, and improve the degradation rate of formaldehyde by the composite material. The experimental results show that the formaldehyde filter screen composite material for air purifier prepared by the invention has high adsorption capacity and catalytic degradation capabilities.

Description

technical field [0001] The invention relates to the technical field of composite functional materials, in particular to a formaldehyde filter composite material for an air purifier and a preparation method thereof. Background technique [0002] Formaldehyde is a common indoor air pollutant. Decoration materials are the main source of formaldehyde pollution, followed by domestic pollution and the exchange of indoor and outdoor air. At present, indoor formaldehyde gas is the number one killer that endangers the health of modern families. [0003] Air purifiers are an effective means to effectively remove indoor formaldehyde gas. Commonly used are activated carbon filters and photocatalyst filters. The activated carbon filter adopts aluminum honeycomb, plastic honeycomb or paper honeycomb with through-hole structure as the carrier. Compared with the traditional activated carbon filter, the activated carbon filter has better aerodynamic performance, small bulk density, large sp...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J31/38B01J35/06B01D53/86B01D53/72
CPCB01D53/8668B01J20/06B01J20/20B01J20/261B01J20/267B01J21/063B01J21/18B01J31/06B01J31/38B01D2255/802B01J35/58
Inventor 汤曙东郝小利衡海洲许雄明张正文
Owner 上海源述基因科技有限公司
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