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Method for preparing air filter material

An air filter material and filter base technology, applied in the field of air filter material preparation, can solve the problems of poor acid and alkali resistance, poor oil filtering performance, limited air flow rate, etc., and achieve good acid and alkali resistance, Enhanced tensile strength, enhanced absorption effect

Inactive Publication Date: 2019-07-02
瑞德纳米科技(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary air materials have a limited air flow rate. Excessively high flow rates will cause the surface to bend and deform, which will easily cause pore sizes to vary, thereby affecting its filtering effect. Most air filter materials have poor oil filtration performance and cannot adapt to different environments. Under the air filtration, under different environments, the air may contain oil, acid or alkaline gas, which will cause great harm to the human body. The current air filter materials have poor acid and alkali resistance, and it is difficult to ensure the air filtration. material life

Method used

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  • Method for preparing air filter material

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A kind of preparation method of air filter material, this method specifically comprises the following steps:

[0040] Step 1. Preparation of the filter substrate: place the glass fiber in a closed heating furnace, heat up to 400°C and melt it into a molten state, and extrude it from the spinneret hole of the die to form a molten filament. The heated air is fed into both sides of the spinneret holes of the die to blow and stretch the glass fiber filaments at a high speed. Into the cooling air, the air velocity is 380m / s, so that the glass fiber is cooled and crystallized, and the glass fiber is sucked by a vacuum suction device, so that the glass fiber is evenly distributed, and the filter substrate is obtained;

[0041] Step 2, preparation of filter film: in a beater equipped with a thermometer, first add 15% HCl, then add polypropylene fiber and polytetrafluoroethylene respectively in the beater, and disperse by beating to make the slurry The mass concentration is 3%,...

Embodiment 2

[0054] A kind of preparation method of air filter material, this method specifically comprises the following steps:

[0055] Step 1. Preparation of the filter substrate: place the glass fiber in a closed heating furnace, heat it up to 425°C and melt it into a molten state, and extrude it from the spinneret hole of the die head to form a molten filament. The heated air is fed into both sides of the spinneret holes of the die to blow and stretch the glass fiber filaments at a high speed. Cool the air with an air velocity of 380m / s to cool and crystallize the glass fibers, and suck the glass fibers through a vacuum suction device to evenly distribute the glass fibers to obtain a filter substrate;

[0056] Step 2, preparation of filter film: in a beater equipped with a thermometer, first add 15% HCl, then add polypropylene fiber and polytetrafluoroethylene respectively in the beater, and disperse by beating to make the slurry The mass concentration is 3.5%, the acidity is pH3.7, ...

Embodiment 3

[0062] A kind of preparation method of air filter material, this method specifically comprises the following steps:

[0063] Step 1. Preparation of the filter substrate: place the glass fiber in a closed heating furnace, heat up to 450°C and melt it into a molten state, and extrude it from the spinneret hole of the die to form a molten filament. The heated air is fed into both sides of the spinneret holes of the die to blow and stretch the glass fiber filaments at a high speed. Cool the air with an air velocity of 380m / s to cool and crystallize the glass fibers, and suck the glass fibers through a vacuum suction device to evenly distribute the glass fibers to obtain a filter substrate;

[0064] Step 2, preparation of filter film: in a beater equipped with a thermometer, first add 15% HCl, then add polypropylene fiber and polytetrafluoroethylene respectively in the beater, and disperse by beating to make the slurry The mass concentration is 4%, the acidity is pH4, and the beat...

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Abstract

The invention discloses a method for preparing an air filter material. The method comprises the following steps: preparation of a filter substrate, preparation of a filter film, and preparation of theair filter material. Polytetrafluoroethylene added to the air filter material enhances the tensile strength and the acid and alkali resistance of the filter film, so it is ensured that the filter film has a good oil filter performance and good mechanical properties and can adapt to air filtration in different environments including oil, acid or alkaline gases; the addition of polypropylene fibersand silica improves the oil filtration performance; the filter substrate and the filter film are quickly integrated by a filter material integration device to improve the production efficiency, so the adhesion of the filter substrate and the filter film is ensured; and activated carbon is compacted by a pressing plate to make the activated carbon sufficiently adhered to the surface of the air filter material, so the absorption capacity of the air filter material against toxic gases and other gases harmful to the human body is enhanced.

Description

technical field [0001] The invention relates to the technical field of air filter materials, in particular to a preparation method of air filter materials. Background technique [0002] With the continuous development of society and economy, the air quality is declining day by day. How to protect the air environment has become the focus of social attention. Pollution threatens human health. Improving the pollution situation and rethinking the way of life have become people's current concerns. In this case, the air filter came into being. The air filter is a device that traps dust in the gas-solid two-phase flow and purifies the gas by setting air filter materials inside it. The low-volume air is purified and sent to the room to ensure the process requirements of the clean room and the air cleanliness of the general air-conditioned room. The current air pollution is diverse, including acid and alkali gases, cooking exhaust gases, and toxic gases. [0003] Ordinary air materi...

Claims

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Application Information

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IPC IPC(8): B01D39/14
CPCB01D39/14B01D2239/10
Inventor 魏依依高碧香
Owner 瑞德纳米科技(广州)有限公司
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