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Filtering membrane material applied to air purification and preparation method thereof

A technology for purifying air and filtering membrane, which is applied in the field of filtering membrane materials for purifying air and its preparation, which can solve the problems of reduced filtration efficiency, high production cost, and poor air permeability of filter membranes, and achieves broad market prospects and excellent separability Effect

Active Publication Date: 2016-07-20
ZHEJIANG DONGMENG MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used hydrophobic materials such as polytetrafluoroethylene and polyvinylidene fluoride not only have high production costs, but also have certain durability problems to water, which will make the air permeability of the filter membrane worse, reduce the filtration efficiency, and increase energy consumption , and reduced service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The filter membrane material used for air purification described in this embodiment is composed of a non-woven fabric base material and a filter layer, and the filter layer is prepared from the following raw materials in parts by weight: 14 parts of polytetrafluoroethylene, 6 parts of polyglycerol ricinoleate, 8 parts of polyamide, 2 parts of graphene oxide, 2 parts of nanocellulose, 3 parts of polyhydroxybutyrate, 0.7 parts of antibacterial agent, 4 parts of medical stone powder, 7 parts of barium carbonate, 3 parts of zeolite powder, 2 parts of bamboo fiber, 2 parts of trifluoroacetic acid and 45 parts of distilled water.

[0022] Preferably, the antibacterial agent is a mixture of titanate and titanium dioxide in a weight ratio of 4:1.

[0023] The preparation method of the filter membrane material applied to purifying air described in this embodiment comprises the following steps:

[0024] (1) Add polytetrafluoroethylene, nanocellulose, polyamide, polyhydroxybutyra...

Embodiment 2

[0029] The filter membrane material used for air purification described in this embodiment is composed of a non-woven substrate and a filter layer, and the filter layer is prepared from the following raw materials in parts by weight: 27 parts of polytetrafluoroethylene, 14 parts of polyglycerol ricinoleate, 17 parts of polyamide, 5 parts of graphene oxide, 9 parts of nanocellulose, 10 parts of polyhydroxybutyrate, 3 parts of antibacterial agent, 9 parts of medical stone powder, 13 parts of barium carbonate, 9 parts of zeolite powder, 8 parts of bamboo fiber, 9 parts of trifluoroacetic acid and 70 parts of distilled water.

[0030] Preferably, the antibacterial agent is a mixture of titanium dioxide, dehydroacetic acid and sodium diacetate in a weight ratio of 3:1:2.

[0031] The preparation method of the filter membrane material applied to purifying air described in this embodiment comprises the following steps:

[0032] (1) Add polytetrafluoroethylene, nanocellulose, polyami...

Embodiment 3

[0037] The filter membrane material used for air purification described in this embodiment is composed of a non-woven substrate and a filter layer, and the filter layer is prepared from the following raw materials in parts by weight: 23 parts of polytetrafluoroethylene, 9 parts of polyglycerol ricinoleate, 15 parts of polyamide, 4 parts of graphene oxide, 7 parts of nanocellulose, 6 parts of polyhydroxybutyrate, 2 parts of antibacterial agent, 7 parts of medical stone powder, 9 parts of barium carbonate, 7 parts of zeolite powder, 6 parts of bamboo fiber, 8 parts of trifluoroacetic acid and 64 parts of distilled water.

[0038] Preferably, the antibacterial agent is a mixture of titanate, titanium dioxide, dehydroacetic acid and sodium diacetate in a weight ratio of 2:4:1:5.

[0039] The preparation method of the filter membrane material applied to purifying air described in this embodiment comprises the following steps:

[0040] (1) Add polytetrafluoroethylene, nanocellulose...

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Abstract

The invention discloses a filtering membrane material applied to air purification and a preparation method thereof. The filtering membrane material consists of a non-woven fabric substrate and a filtering layer, wherein the filtering layer is prepared from the following raw materials in parts by weight: polytetrafluoroethylene, polyglycerol polyricinoleate, polyamide, graphene oxide, nano cellulose, polyhydroxybutyrate, an antibacterial agent, maifanite powder, barium carbonate, zeolite powder, bamboo fibers, trifluoroacetic acid and distilled water. According to the filtering membrane material prepared by the preparation method, the tensile strength is 5.8MPa to 7.1MPa, the air flux is 1,491L / (m<2>*h) to 1,562L / (m<2>*h), the membrane interception rate is higher than 95.6%, and excellent separability, mechanical properties and durability are displayed, so that the filtering membrane material can be extensively applied to the field of air purification and is wide in market prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a filter membrane material used for air purification and a preparation method thereof. Background technique [0002] Filter membranes are widely used in gas treatment, water treatment, petrochemical and pharmaceutical industries, and are an important polymer material. Filtration membranes can be roughly divided into liquid filtration membranes and gas filtration membranes. Existing gas filtration membranes are usually composed of a non-woven substrate bonded with a filter layer, and the material of the filter layer is mainly polymers such as polyethylene, polypropylene, polytetrafluoroethylene, and polyvinylidene fluoride. [0003] When the gas filter membrane is used to filter the air, in addition to the gas, the air also contains a large amount of water vapor, volatile organic compounds, particulate impurities, etc. If the gas filter membrane is to achieve a good f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/36B01D71/56B01D71/02B01D71/10B01D71/40B01D71/52B01D67/00B01D53/22
CPCB01D53/228B01D67/0079B01D71/02B01D71/10B01D71/36B01D71/40B01D71/52B01D71/56
Inventor 王泽陆
Owner ZHEJIANG DONGMENG MEDICAL EQUIP CO LTD
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