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A filter material for indoor air purification and preparation method thereof

A filter material and air purification technology, applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problems of limited filtering and removal of PM2.5, achieve good air permeability, good filtering effect, and air The effect of low resistance

Active Publication Date: 2020-11-27
湖州达立智能设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of filtering and removing PM2.5 is also very limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of filter material for indoor air purification: (1) Weigh 200g of polyamic acid and dissolve it in 900g of dimethylformamide, stir and mix well, and let it stand for 12 hours to obtain a polyamic acid solution; (2) 2+ 40 g of the metal-organic framework material was dispersed in 800 g of triethanolamine to obtain a metal-organic framework material dispersion; (3) the metal-organic framework material prepared in step (2) was added to the polyamic acid solution after aging in step (1). Skeleton material dispersion, after stirring and mixing, freeze-drying at low temperature, and reheating imidization to obtain polyimide composite airgel; (4) disperse the polyimide composite airgel prepared in step (3) in Polyacrylonitrile solution is used to form spinning solution, and fiber filaments are obtained by electrospinning, which is then woven by a loom to form a transparent filter cloth. The air resistance of the filter cloth was detected, and the measurement result...

Embodiment 2

[0040] Preparation of filter material for indoor air purification: (1) Weigh 200g of polyamic acid and dissolve it in 1000g of dimethylformamide, stir and mix well and let it stand for 12.5 hours to obtain polyamic acid solution; (2) Zn-containing 2+ 40 g of the metal-organic framework material was dispersed in 1000 g of triethanolamine to obtain a metal-organic framework material dispersion; (3) the metal-organic framework material prepared in step (2) was added to the polyamic acid solution after aging in step (1). Skeleton material dispersion, after stirring and mixing, freeze-drying at low temperature, and reheating imidization to obtain polyimide composite airgel; (4) disperse the polyimide composite airgel prepared in step (3) in Polyacrylonitrile solution is used to form spinning solution, and fiber filaments are obtained by electrospinning, which is then woven by a loom to form a transparent filter cloth. The air resistance of the filter cloth was detected, and the mea...

Embodiment 3

[0042] Preparation of filter material for indoor air purification: (1) Weigh 210g of polyamic acid and dissolve it in 900g of dimethyl sulfoxide, stir and mix well and let it stand for 13 hours to obtain polyamic acid solution; (2) Fe 3+ 40 g of the metal-organic framework material was dispersed in 1000 g of triethanolamine to obtain a metal-organic framework material dispersion; (3) the metal-organic framework material prepared in step (2) was added to the polyamic acid solution after aging in step (1). Skeleton material dispersion, after stirring and mixing, freeze-drying at low temperature, and reheating imidization to obtain polyimide composite airgel; (4) disperse the polyimide composite airgel prepared in step (3) in Polyacrylonitrile solution is used to form spinning solution, and fiber filaments are obtained by electrospinning, which is then woven by a loom to form a transparent filter cloth. The air resistance of the filter cloth was detected, and the measurement resu...

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Abstract

The invention relates to the field of filtering materials for air purification, in particular to a filtering material used for indoor air purification and a preparation method. The filtering materialused for the indoor air purification is prepared with the following method comprising the steps: after polyamide acid is dissolved, ageing for 12-15h to obtain a polyamide acid solution; dispersing ametal-organic skeleton material in triethanolamine to obtain a metal-organic skeleton material dispersion solution; adding the metal-organic skeleton material dispersion solution into the polyamide acid solution, evenly mixing, carrying out freezing drying, and carrying out thermal imidization to obtain polyimide composite aerogel; dispersing the polyimide composite aerogel into a polyacrylonitrile solution to form a spinning solution, and carrying out spinning and weaving to form transparent filter cloth, wherein the solvent dissolved by the polyamide acid is dimethylformamide, dimethyl sulfoxide, sodium thiocyanate or zinc chloride. When the material is adopted, a filtering effect is good, PM2.5 (Particulate Matter 2.5) particulates can be thoroughly obstructed and filtered out, and airresistance is low.

Description

technical field [0001] The invention relates to the field of filter materials for purifying air, in particular to a filter material for indoor air purification and a preparation method thereof. Background technique [0002] PM2.5 fine particulate matter refers to particulate matter with an ambient aerodynamic diameter less than or equal to 2.5 microns, also known as particulate matter that can enter the lungs, which has an important impact on air quality and visibility. PM2.5 has a small particle size, is rich in a large amount of toxic and harmful substances, and has a long residence time in the atmosphere and a long transportation distance, so it has a greater impact on human health and the quality of the atmospheric environment. PM2.5 fine particles in the air The higher the content, the more serious the air pollution. Because PM2.5 fine particles are small, it is difficult to remove, and because PM2.5 fine particles are everywhere, fine particles are very harmful to hum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/08B01D46/00B01D53/88B01D53/04
CPCB01D39/08B01D46/0001B01D46/0028B01D46/0036B01D53/04B01D53/88B01D2239/0208B01D2239/04B01D2239/0604B01D2239/0631B01D2239/10B01D2253/204B01D2255/705B01D2258/06
Inventor 陈庆曾军堂
Owner 湖州达立智能设备制造有限公司
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