A kind of electroactive air filter material and preparation method thereof

An air filter material and electroactive technology, applied in botanical equipment and methods, separation methods, filtration separation, etc., can solve problems such as surface darkening, unfavorable use, rust, etc., to reduce discomfort and improve filtration effect Effect

Active Publication Date: 2022-07-12
QINGDAO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the air filter made by it has certain bactericidal and antibacterial effects, it still has the following disadvantages: first, metals are prone to chemical reactions in the air, such as metal silver, although silver does not react with oxygen, but due to air There is a small amount of O in 3 , can oxidize silver to AgO, the surface becomes dark
It uses copper (aluminum) mesh base material, which belongs to the metal rigid base material, and has the following disadvantages: First, after long-term use of the metal base material, the moisture generated by breathing is easy to make it rust, resulting in poor air permeability
Secondly, in the actual application environment of smog, the air contains both water molecules and smog particles, and the humidity in the air is as high as 80-90%. The moisture in the air and the water vapor produced by breathing adhere to the copper mesh substrate, affecting Friction / piezoelectricity generates electrical stimulation, which affects the sterilization and antibacterial effects, which is not conducive to use in haze environments and high humidity environments
Third, it is composed of multi-layer electrodes, the process is complicated, the weight is heavy, and the flexibility, fit and comfort are not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An electroactive air filter material, comprising a polymer fiber filter base material, a layer of Ag is sputtered on one surface of the polymer fiber filter base material 2 O, a layer of Zn is sputtered on the other surface of the polymer fiber filter substrate. Among them, the diameter of the polymer fibers in the polymer fiber filter substrate is a micron-scale synthetic fiber, specifically a polypropylene melt-blown non-woven material.

[0029] A preparation method of an electroactive air filter material, comprising the steps:

[0030] (1), the polypropylene meltblown nonwoven material is placed in a vacuum drying oven and dried at 100 ° C, so that its water content is lower than 0.01%;

[0031] (2), the polypropylene melt-blown nonwoven material obtained in step (1) is placed in a vacuum chamber of a magnetron sputtering equipment, and a DC target is used to sputter a layer of Ag on one side of the polypropylene melt-blown nonwoven material 2 O, the degree of vacu...

Embodiment 2

[0034] An electroactive air filter material, comprising a polymer fiber filter base material, a layer of Ag is sputtered on one surface of the polymer fiber filter base material 2 The mixture of O and AgO has a layer of Zn sputtered on the other surface of the polymer fiber filter substrate. Wherein, the diameter of the polymer fibers in the polymer fiber filter substrate is a nano-scale natural fiber, specifically a woven material prepared from regenerated cellulose fibers.

[0035] A preparation method of an electroactive air filter material, comprising the steps:

[0036] (1), place the regenerated cellulose fiber woven material in a vacuum drying oven to dry at 80°C, so that its water content is lower than 0.01%;

[0037] (2), place the regenerated cellulose fiber weaving material that step (1) obtains in the vacuum chamber of magnetron sputtering equipment, use the direct current target position, sputter a layer of Ag on one side of the regenerated cellulose fiber weavin...

Embodiment 3

[0040] An electroactive air filter material, comprising a polymer fiber filter base material, a layer of Ag is sputtered on one surface of the polymer fiber filter base material 2 The mixture of O and AgO has a layer of Zn sputtered on the other surface of the polymer fiber filter substrate. Wherein, the polymer fibers in the polymer fiber filter substrate are glass fibers, specifically non-woven materials prepared from glass fibers.

[0041] A preparation method of an electroactive air filter material, comprising the steps:

[0042] (1), the glass fiber non-woven material is placed in a vacuum drying oven and dried at 120 ° C, so that its water content is lower than 0.01%;

[0043] (2), place the non-woven material obtained in step (1) in the vacuum chamber of the ion sputtering equipment, use the direct current target position, and sputter a layer of Ag on one side of the non-woven material 2 Mixture of O and AgO with a vacuum of 1×10 -3 Pa, the sputtering atmosphere is a...

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Abstract

The invention relates to the technical field of air filter materials, in particular to an electroactive air filter material and a preparation method thereof. The air filter material includes a polymer fiber filter substrate, a layer of oxidizing material is sputtered on one surface of the polymer fiber filter substrate, and a layer of reducing material is sputtered on the other surface of the polymer fiber filter substrate. The preparation method of the air filter material comprises the following steps: (1), placing the filter base material in a drying oven to dry; (2), placing the filter base material obtained in the step (1) in a vacuum chamber, on one side of the filter base material A layer of oxidizing material is sputtered to obtain a filter substrate containing an oxidizing material layer on one side; (3), placing the filter substrate obtained in step (2) in a vacuum chamber, and sputtering a layer on the other side of the filter substrate The raw material is the electroactive air filter material. The air filter material prepared by the invention has a filtering effect on bacteria, viruses and the like, and also has strong sterilization, virus killing and antibacterial functions.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to an electroactive air filter material and a preparation method thereof. Background technique [0002] With the progress of the times, people's requirements for environmental quality are getting higher and higher. However, the rapid economic development has exacerbated environmental pollution, and dust particles, chemical substances, and harmful microorganisms in the air have had adverse effects on human health. Therefore, the effective control of harmful substances in the air is a major problem to be solved. The application of air filters and filter materials is an important means of purifying the air. Ordinary air filter materials are not thorough enough for the removal of fine particles, and the filter materials are prone to breeding harmful microorganisms, and there is the possibility of secondary pollution. [0003] At present, fiber filter materials mainly rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14A01N59/00A01N59/16A01P3/00A01P1/00
CPCB01D39/14A01N59/00A01N59/16B01D2239/0442B01D2239/0435B01D2239/10Y02A50/2351
Inventor 李纪伟董顺王娜何宏伟常丽陈韶娟马建伟刘尚鹏冯玉洁于意
Owner QINGDAO UNIV
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