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Graphene modified antibacterial water permeable membrane for fresh air system and preparation method

A graphene modification, fresh air system technology, applied in semi-permeable membrane separation, chemical instruments and methods, membranes, etc., can solve problems such as pollution, increase use cost, fine particles or bacterial virus blockage, etc., to reduce use cost, The effect of increasing the service life and improving the acid and alkali resistance

Inactive Publication Date: 2018-11-23
JINAN DEV ZONE XINGHUO SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, many high-efficiency filters use ultrafiltration membranes. Ultrafiltration membranes have the function of filtering, but they are easily blocked by fine particles or bacteria and viruses, making the filters invalid, bacteria multiplying, and entering the room under the action of air pressure, causing pollution. In order to avoid pollution It needs to be replaced frequently, which increases the cost of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A graphene-modified antibacterial water-permeable membrane for a fresh air system includes a graphene-modified antibacterial water-permeable membrane and an antibacterial textile layer, and the antibacterial textile layer is an electrospun cloth compounded with graphene antibacterial materials.

[0025] Specifically, the raw material of the polymer film layer is selected from at least one of the following: polyethylene oxide (PEO).

[0026] Specifically, the electrospinning is prepared by using gelatin, chitosan, and hydroxyapatite, and its mass parts are 100 parts of gelatin, 20 parts of chitosan, and 10 parts of hydroxyapatite.

[0027] Specifically, the graphene antibacterial material is selected from graphene and graphene oxide.

[0028] Specifically, there is at least one of the following additives in the polymer film layer: antioxidant, ultraviolet stabilizer, crosslinking agent or their mixture.

[0029] A preparation method of graphene modified antibacterial wa...

Embodiment 2

[0039] A graphene-modified antibacterial water-permeable membrane for a fresh air system includes a graphene-modified antibacterial water-permeable membrane and an antibacterial textile layer, and the antibacterial textile layer is an electrospun cloth compounded with graphene antibacterial materials.

[0040] Specifically, the raw material of the polymer film layer is selected from polystyrene sulfuric acid and polyester.

[0041] Specifically, the electrospinning is prepared by using gelatin, chitosan, and hydroxyapatite, and its mass parts are 100 parts of gelatin, 30 parts of chitosan, and 15 parts of hydroxyapatite.

[0042] Specifically, the graphene antibacterial material is a graphene oxide / silver composite material.

[0043] Specifically, there is at least one of the following additives in the polymer film layer: antioxidant, ultraviolet stabilizer, crosslinking agent or their mixture.

[0044] A preparation method of graphene modified antibacterial water-permeable m...

Embodiment 3

[0054] A graphene-modified antibacterial water-permeable membrane for a fresh air system includes a graphene-modified antibacterial water-permeable membrane and an antibacterial textile layer, and the antibacterial textile layer is an electrospun cloth compounded with graphene antibacterial materials.

[0055] Specifically, the raw material of the polymer film layer is a mixture of polyester, polycarbonate (PC), and polymethyl methacrylate (PMMA).

[0056] Specifically, the electrospinning is prepared by using gelatin, chitosan, and hydroxyapatite, and its mass parts are 100 parts of gelatin, 40 parts of chitosan, and 18 parts of hydroxyapatite.

[0057] Specifically, the graphene antibacterial material is selected from one or more of graphene, graphene oxide, graphene oxide / silver composite material, and graphene oxide / titanium dioxide composite material.

[0058] Specifically, there is at least one of the following additives in the polymer film layer: antioxidant, ultraviolet ...

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PUM

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Abstract

The invention relates to a graphene modified antibacterial water permeable membrane for a fresh air system and a preparation method. The graphene modified antibacterial water permeable membrane for the fresh air system comprises a graphene modified antibacterial water-permeable membrane and an antibacterial spinning layer, wherein the antibacterial spinning layer adopts electrospinning cloth compounded with a graphene antibacterial material. The preparation method of the graphene modified antibacterial water permeable membrane comprises the following steps: preparing electrospun filament, infiltrating the graphene antibacterial material, and coating a polymeric membrane. The graphene modified antibacterial water permeable membrane disclosed by the invention enables water vapor to permeate,is capable of effectively killing and inhibiting the bacterial and preventing the bacteria from growing on a membrane, has a self-cleaning function and is high in pollution resistance, the mechanicalproperty and the acid and alkali resistance of the membrane are remarkably increased, the service life is prolonged, and the using cost is reduced.

Description

technical field [0001] The invention relates to the field of antibacterial materials, in particular to a graphene-modified antibacterial water-permeable membrane for fresh air systems and a preparation method thereof. Background technique [0002] At present, environmental pollution has aroused people's widespread concern, which has led to the research of the fresh air system. The fresh air system is an independent air treatment system composed of an air supply system and an exhaust system. The outdoor air is purified through the fresh air system and introduced into the room. Air out. [0003] Some existing filter devices for fresh air systems are generally equipped with primary filter, electrostatic dust collection, activated carbon filter and high-efficiency filter in sequence. High-efficiency filters need to filter fine particles or bacteria and viruses, but air and moisture must be guaranteed It can pass through, keep the indoor air fresh, and also maintain the humidity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D69/02B01D71/44B01D71/48B01D71/56
CPCB01D67/0079B01D69/02B01D71/44B01D71/48B01D71/56B01D2325/48
Inventor 张成如
Owner JINAN DEV ZONE XINGHUO SCI & TECH RES INST