Air filtering membrane and preparation method thereof

A technology of air filtration and organic film, applied in separation methods, chemical instruments and methods, membrane technology, etc., can solve the problems that air filtration devices cannot meet the filtering effect and ventilation effect at the same time, and achieve easy installation, convenient portability, and chemical performance stable effect

Inactive Publication Date: 2013-09-04
JIANGSU YAYU CREATE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiency that the existing air filter device cannot meet the filtering effect and ventilation effe

Method used

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  • Air filtering membrane and preparation method thereof
  • Air filtering membrane and preparation method thereof
  • Air filtering membrane and preparation method thereof

Examples

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Effect test

preparation example Construction

[0078] In the air filtration membrane of the present invention, when the graphene film (102) corresponding to each channel formed by the first through hole (104) and the second through hole (106) is provided with a plurality of third through holes (105) , the preparation method of the air filtration membrane comprises the following steps:

[0079] (1) Provide two transparent films, and laser-etch through holes at corresponding positions to obtain a first transparent organic film 101 with a number of first through holes 104, and a second transparent organic film with the same number of second through holes 106. Organic thin film 103; the structure obtained in step (1) is as follows figure 2 ( figure 2 It is shown in the schematic cross-sectional view of the structure obtained in step (1) of the present invention;

[0080] Wherein, the shape of the first through hole and the second through hole is not specifically limited in the present invention, and may be a circle, an ell...

Embodiment 1

[0087] An air filtration membrane comprising:

[0088] (i) The first transparent organic thin film 101 and the second transparent organic thin film 103, the first transparent organic thin film 101 and the second transparent organic thin film 103 are superimposed together, and the first transparent organic thin film 101 is drawn out by a laser A plurality of first through holes 104, the same number of second through holes 106 are opened on the second transparent organic film 103 by laser, the diameters and positions of the first through holes 104 and the corresponding second through holes 106 are consistent to form a plurality of second through holes 106. channel;

[0089] Wherein, the diameter and position of the first through hole 104 and the corresponding second through hole are the same, and the diameter is 10-30 μm; the first through hole 104 and the second through hole are circular holes;

[0090] The material of the first transparent organic film and the second transpar...

Embodiment 2

[0095] An air filtration membrane, the layered structure is the same as that of Embodiment 1, only the shape of the first through hole and the second through hole are elongated, such as Figure 5 shown ( Figure 5 It is a schematic view of the front structure of the air filtration membrane described in Example 2 of the present invention).

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Abstract

The invention relates to an air filtering membrane which comprises a first transparent organic thin membrane and a second transparent organic thin membrane which are stacked together, and a graphene thin membrane clamped between the two transparent organic thin membranes, wherein a plurality of first through holes are formed in the first transparent organic thin membrane; a plurality of second through holes are formed in the second transparent organic thin film and are equal to the first through holes; the diameters and the positions of the first through holes are consistent with those of the corresponding second through holes, so that a plurality of passageways are formed; and the graphene thin membrane is provided with a plurality of cracks, or a plurality of through holes are formed in the graphene thin membrane and correspond to the passageways formed by the first through holes and the second through holes. The air filtering membrane can stop ultra-small dust particles and completely meet the requirement on prevention of PM2.5, and furthermore, is high in ventilating property, transparent, soft, folding, easy to carry and convenient to mount.

Description

technical field [0001] The invention belongs to the application field of anti-pollution air filtration and purification, relates to an air filtration membrane and a preparation method thereof, and in particular relates to an ultrafine air filtration membrane structure using graphene materials and a preparation method thereof. Background technique [0002] There are two types of dust in the atmosphere: falling dust and floating dust. The so-called dustfall refers to the substances in the atmosphere in which pollutants are deposited by their own weight. The so-called floating dust refers to the floating particles with dust particles below 10 μm. Among the dust, especially the floating dust of 0.5-5 μm is the most harmful to people, because this kind of floating dust contains a variety of toxic metals or carcinogens. [0003] PM2.5 refers to particulate matter with a diameter of less than or equal to 2.5 μm in the atmosphere, also known as particulate matter that can enter th...

Claims

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Application Information

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IPC IPC(8): B01D69/12B01D71/06B01D67/00B01D53/22
Inventor 冯冠平刘志斌
Owner JIANGSU YAYU CREATE TECH CO LTD
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